Scholars@Duke
Carl Eric Ravin

Carl Eric Ravin

Professor Emeritus of Radiology
Radiology, Cardiothoracic Imaging
carl.ravin@duke.edu
Box 3810 Med Ctr, Durham, NC 27710
Room 1293C Duke Clinic, Durham, NC 27710

Selected Publications

Modeling Lung Architecture in the XCAT Series of Phantoms: Physiologically Based Airways, Arteries and Veins.

Journal Article IEEE Trans Med Imaging · March 2018 The purpose of this paper was to extend the extended cardiac-torso (XCAT) series of computational phantoms to include a detailed lung architecture including airways and pulmonary vasculature. Eleven XCAT phantoms of varying anatomy were used in this paper. ... Full text Link to item Cite

Preliminary evaluation of biplane correlation (BCI) stereographic imaging for lung nodule detection.

Journal Article J Digit Imaging · February 2013 A biplane correlation (BCI) imaging system obtains images that can be viewed in stereo, thereby minimizing overlapping structures. This study investigated whether using stereoscopic visualization provides superior lung nodule detection compared to standard ... Full text Link to item Cite

Effective dose efficiency: an application-specific metric of quality and dose for digital radiography.

Journal Article Phys Med Biol · August 21, 2011 The detective quantum efficiency (DQE) and the effective DQE (eDQE) are relevant metrics of image quality for digital radiography detectors and systems, respectively. The current study further extends the eDQE methodology to technique optimization using a ... Full text Link to item Cite

Re: "Community-acquired pneumonia".

Journal Article Pharos Alpha Omega Alpha Honor Med Soc · 2011 Link to item Cite

Radiation dose for routine clinical adult brain CT: Variability on different scanners at one institution.

Journal Article AJR Am J Roentgenol · August 2010 OBJECTIVE: The purpose of this study was to determine, using an anthropomorphic phantom, whether patients are subject to variable radiation doses based on scanner assignment for routine CT of the brain. MATERIALS AND METHODS: Twenty metal oxide semiconduct ... Full text Link to item Cite

Radiation dose for body CT protocols: variability of scanners at one institution.

Journal Article AJR Am J Roentgenol · October 2009 OBJECTIVE: The objective of our study was to determine, using an anthropomorphic phantom, whether patients are subject to variable radiation doses based on scanner assignment for common body CT studies. MATERIALS AND METHODS: Twenty metal oxide semiconduct ... Full text Link to item Cite

Effective DQE (eDQE) and speed of digital radiographic systems: an experimental methodology.

Journal Article Med Phys · August 2009 Prior studies on performance evaluation of digital radiographic systems have primarily focused on the assessment of the detector performance alone. However, the clinical performance of such systems is also substantially impacted by magnification, focal spo ... Full text Link to item Cite

Extension of DQE to include scatter, grid, magnification, and focal spot blur: A new experimental technique and metric

Journal Article Progress in Biomedical Optics and Imaging Proceedings of SPIE · June 15, 2009 In digital radiography, conventional DQE evaluations are performed under idealized conditions that do not reflect typical clinical operating conditions. For this reason, we have developed and evaluated an experimental methodology for measuring the effectiv ... Full text Cite

Detector or system? Extending the concept of detective quantum efficiency to characterize the performance of digital radiographic imaging systems.

Journal Article Radiology · December 2008 Featured Publication PURPOSE: To develop an experimental method for measuring the effective detective quantum efficiency (eDQE) of digital radiographic imaging systems and evaluate its use in select imaging systems. MATERIALS AND METHODS: A geometric phantom emulating the atte ... Full text Link to item Cite

Assessment of detective quantum efficiency: intercomparison of a recently introduced international standard with prior methods.

Journal Article Radiology · June 2007 Featured Publication PURPOSE: To prospectively evaluate the recently introduced international standard method for measurement of the detective quantum efficiency (DQE) of digital radiography systems, in comparison with representative prior methods. MATERIALS AND METHODS: A rec ... Full text Link to item Cite

TU‐EE‐A4‐06: Experimental Evaluation of Effective Detective Quantum Efficiency for Digital Radiographic Imaging Systems

Journal Article Medical Physics · January 1, 2007 Purpose: To develop and evaluate an experimental methodology for measuring the effective detective quantum efficiency (eDQE) of digital radiographic systems which reflects the actual signal‐to‐noise performance of the system per unit exposure. Method and M ... Full text Cite

Recent advances in chest radiography.

Journal Article Radiology · December 2006 Featured Publication There have been many remarkable advances in conventional thoracic imaging over the past decade. Perhaps the most remarkable is the rapid conversion from film-based to digital radiographic systems. Computed radiography is now the preferred imaging modality ... Full text Link to item Cite

SU‐FF‐I‐48: Assessment of Detective Quantum Efficiency: Inter‐Comparison of IEC 62220‐1 with Representative Prior Methods

Conference Medical Physics · January 1, 2006 Purpose: To evaluate a new international standard method for the measurement of detective quantum efficiency (DQE) of digital radiography systems in comparison with representative prior methods. Methods and Materials: Three DQE evaluation methods were cons ... Full text Cite

Measurement of the detective quantum efficiency in digital detectors consistent with the IEC 62220-1 standard: Practical considerations regarding the choice of filter material.

Journal Article Med Phys · July 2005 Featured Publication As part of a larger evaluation we attempted to measure the detective quantum efficiency (DQE) of an amorphous silicon flat-panel detector using the method described in the International Electrotechnical Commission standard 62220-1 published in October 2003 ... Full text Link to item Cite

Comparative scatter and dose performance of slot-scan and full-field digital chest radiography systems.

Journal Article Radiology · June 2005 Featured Publication PURPOSE: To evaluate the scatter, dose, and effective detective quantum efficiency (DQE) performance of a slot-scan digital chest radiography system compared with that of a full-field digital radiography system. MATERIALS AND METHODS: Scatter fraction of a ... Full text Link to item Cite

Fundamental imaging characteristics of a slot-scan digital chest radiographic system.

Journal Article Med Phys · September 2004 Featured Publication Our purpose in this study was to evaluate the fundamental image quality characteristics of a new slot-scan digital chest radiography system (ThoraScan, Delft Imaging Systems/Nucletron, Veenendaal, The Netherlands). The linearity of the system was measured ... Full text Link to item Cite

Chest radiography: optimization of X-ray spectrum for cesium iodide-amorphous silicon flat-panel detector.

Journal Article Radiology · January 2003 Featured Publication PURPOSE: To ascertain the optimum x-ray spectrum for chest radiography with a cesium iodide-amorphous silicon flat-panel detector. MATERIALS AND METHODS: End points for optimization included the ratio of tissue contrast to bone contrast and a figure of mer ... Full text Link to item Cite

Digital chest radiography with a solid-state flat-panel x-ray detector: contrast-detail evaluation with processed images printed on film hard copy.

Journal Article Radiology · March 2001 Featured Publication PURPOSE: To evaluate and compare human observer performance in a contrast-detail test by using postprocessed hard-copy images from a digital chest radiography system and conventional screen-film radiographs. MATERIALS AND METHODS: The digital radiography s ... Full text Link to item Cite

Imaging characteristics of an amorphous silicon flat-panel detector for digital chest radiography.

Journal Article Radiology · March 2001 Featured Publication PURPOSE: To evaluate the imaging characteristics of an amorphous silicon flat-panel detector (FPD) for digital chest radiography. MATERIALS AND METHODS: The 41 x 41-cm digital FPD is constructed on a single monolithic glass substrate with a structured cesi ... Full text Link to item Cite

Image interpretation session: 2000.

Journal Article Radiographics · 2001 Featured Publication Full text Link to item Cite

Image interpretation session: Sunday, November 26, 2000.

Journal Article Radiographics · 2000 Featured Publication Full text Link to item Cite

Cystic fibrosis: combined hyperpolarized 3He-enhanced and conventional proton MR imaging in the lung--preliminary observations.

Journal Article Radiology · September 1999 Featured Publication Four patients with cystic fibrosis (CF) were examined with combined hyperpolarized helium 3-enhanced and conventional proton magnetic resonance (MR) imaging. After inhalation of the polarized 3He gas, single breath-hold, gradient-echo images (resonant freq ... Full text Link to item Cite

Characteristics of regions suspicious for pulmonary nodules at chest radiography.

Journal Article Acad Radiol · September 1998 Featured Publication RATIONALE AND OBJECTIVES: This study was performed to determine physical characteristics of areas on chest radiographs that are suspicious but not definitive for the presence of a pulmonary nodule and the characteristics of areas that contain an obvious no ... Full text Link to item Cite

The Fleischner Society. Future directions in pulmonary imaging.

Journal Article Radiology · January 1998 Featured Publication The next 5-10 years promise a continuation of the enormous excitement we have experienced over the past 10-20 years in pulmonary imaging. In each case, advancements in technology have been or will be applied to the analysis of disease processes in ways pre ... Full text Link to item Cite

Future directions of imaging research: Subspecialty society messages

Journal Article Radiology · January 1, 1998 The next 5-10 years promise a continuation of the enormous excitement we have experienced over the past 10-20 years in pulmonary imaging. In each case, advancements in technology have been or will be applied to the analysis of disease processes in ways pre ... Cite

Chest radiography.

Journal Article Radiology · September 1997 Featured Publication Full text Link to item Cite

Memory artifact related to selenium-based digital radiography systems.

Journal Article Radiology · June 1997 Featured Publication Digital images acquired on radiography systems with amorphous selenium detectors are susceptible to "memory artifacts" from prior x-ray exposures. In routine clinical use and in a laboratory experiment, artifacts appeared in chest radiographs until the sel ... Full text Link to item Cite

Quality control phantom for digital chest radiography.

Journal Article Radiology · January 1997 Featured Publication PURPOSE: To develop and test a chest phantom for routine quality control testing of digital radiography systems. MATERIALS AND METHODS: The phantom was constructed from sheets of copper, aluminum, and acrylic, which were cut and arranged to yield a radiogr ... Full text Link to item Cite

Human lung air spaces: potential for MR imaging with hyperpolarized He-3.

Journal Article Radiology · August 1996 Featured Publication Two healthy volunteers who had inhaled approximately 0.75 L of laser-polarized helium-3 gas underwent magnetic resonance imaging at 1.5 T with fast gradient-echo pulse sequences and small flip angles ( < 10 degrees). Thick-section (20 mm) coronal images, t ... Full text Link to item Cite

Development of a high-performance image server using ATM technology

Journal Article Proceedings of SPIE the International Society for Optical Engineering · January 1, 1996 The ability to display digital radiographs to a radiologist in a reasonable time has long been the goal of many PACS. Intelligent routing, or pre-fetching images, has become a solution whereby a system uses a set of rules to route the images to a pre-deter ... Cite

Network infrastructure for a large radiology environment

Journal Article Proceedings of SPIE the International Society for Optical Engineering · January 1, 1996 As image transmission becomes a more important part of the way radiology departments operate, the need for a high speed network infrastructure has become more important. We have installed a high speed network in the department that uses the latest Asynchro ... Cite

Selenium-based digital radiography of the chest: radiologists' preference compared with film-screen radiographs.

Journal Article AJR Am J Roentgenol · December 1995 OBJECTIVE: A new digital thoracic radiography system (Thoravision; Philips Medical Systems, Hamburg, Germany), which uses selenium as a detector material, was evaluated for observer preference. The system has been shown to have higher detection efficiency ... Full text Link to item Cite

1995 AUR Gold Medal Awards. David Gordon Bragg, MD.

Journal Article Acad Radiol · December 1995 Link to item Cite

X-ray imaging: projection radiography.

Journal Article Acad Radiol · September 1995 Featured Publication Full text Link to item Cite

Imaging of the chest.

Journal Article Acad Radiol · September 1995 Featured Publication Full text Link to item Cite

Technical evaluation of a digital chest radiography system that uses a selenium detector.

Journal Article Radiology · April 1995 Featured Publication PURPOSE: To evaluate a digital chest radiography system that uses a selenium detector. MATERIALS AND METHODS: The relative amounts of scattered radiation in the images (scatter fractions), the effect of x-ray exposure levels on image appearance, the potent ... Full text Link to item Cite

Initial experience with asynchronous transfer mode for use in a medical imaging network.

Journal Article J Digit Imaging · February 1995 Featured Publication Picture archiving and communication Systems (PACS) for medical imaging have always suffered from band-width limitations, throughput, and proprietary protocols. Commercially available local area networks have been hard pressed to meet the requirements of im ... Full text Link to item Cite

Evaluation of a selenium-based digital chest radiography system

Journal Article Proceedings of SPIE the International Society for Optical Engineering · December 1, 1994 Preliminary results are presented from an examination of a selenium based thoracic radiography system (Philips Thoravision). The system has been evaluated with four criteria: (1) systems repeatability, (2) digital linearity, (3) spatial resolution, and (4) ... Cite

Chest radiography: estimated lung volume and projected area obscured by the heart, mediastinum, and diaphragm.

Journal Article Radiology · November 1994 Featured Publication PURPOSE: To estimate what fraction of the lung volume and projected lung area are obscured by the heart, mediastinum, and diaphragm on frontal chest radiographs. MATERIALS AND METHODS: Digital images from 25 computed tomographic examinations of the chest ( ... Full text Link to item Cite

Bayesian restoration of chest radiographs. Scatter compensation with improved signal-to-noise ratio.

Journal Article Invest Radiol · October 1994 Featured Publication OBJECTIVES: The authors introduce a Bayesian algorithm for digital chest radiography that increases the signal-to-noise ratio, and thus detectability, for low-contrast objects. METHOD: The improved images are formed as a maximum a posteriori probability es ... Full text Link to item Cite

Scatter-reduction characteristics of an infinity-focused gridded radiographic cassette.

Journal Article Invest Radiol · September 1994 Featured Publication RATIONALE AND OBJECTIVES: The scatter-reduction properties of a new infinity-focused grid incorporated into a radiographic imaging cassette were analyzed. METHODS: A polystyrene chest phantom was imaged using the cassette and bedside radiographic procedure ... Full text Link to item Cite

Time comparison of a medical intensive care unit before and after installation of a digital viewing station

Conference Proceedings of SPIE the International Society for Optical Engineering · May 15, 1994 Almost three years ago we conducted a study to assess the impact of digital viewing stations in intensive care units. Two intensive care units, the MICU (Medical Intensive Care Unit) and the SICU (Surgical Intensive Care Unit) were studied. The results dem ... Full text Cite

Artificial neural network for pulmonary nodule detection: Preliminary human observer comparison

Conference Proceedings of SPIE the International Society for Optical Engineering · May 11, 1994 A single-layer artificial neural network was developed to detect synthetic pulmonary nodules of approximately the same size in patient chest radiographs. The identical detection task was given to human observers with varying degrees of radiological trainin ... Full text Cite

Scatter compensation in digital chest radiography using the posterior beam stop technique.

Journal Article Med Phys · March 1994 Featured Publication A new scatter compensation technique for computed radiography based on posterior beam stop (PBS) sampled scatter measurements and the bicubic spline interpolation technique was proposed. Using only a single exposure, both the clinical image and an array of ... Full text Link to item Cite

Interstitial thickening in pulmonary alveolar microlithiasis: an underappreciated finding.

Journal Article J Thorac Imaging · 1994 Featured Publication We report a case of pulmonary alveolar microlithiasis in which interstitial thickening is a prominent radiographic feature. We wish to emphasize this finding. ... Full text Link to item Cite

Cardiopulmonary complications of pregnancy: radiographic findings.

Journal Article AJR Am J Roentgenol · November 1993 Featured Publication Physiologic changes during pregnancy affect nearly every organ system. In the thorax, the diaphragm elevates as much as 4 cm because of displacement of the abdominal organs by the gravid uterus, resulting in lower lung volumes. Maternal blood volume and ca ... Full text Link to item Cite

Chest radiographic findings in patients with acute pulmonary embolism: observations from the PIOPED Study.

Journal Article Radiology · October 1993 Featured Publication PURPOSE: To determine the sensitivity, specificity, and positive and negative predictive values of chest radiographic findings in patients suspected of having acute pulmonary embolism (PE). MATERIALS AND METHODS: Chest radiographs of 1,063 patients with su ... Full text Link to item Cite

Film-based chest radiography: AMBER vs asymmetric screen-film systems.

Journal Article AJR Am J Roentgenol · October 1993 Featured Publication OBJECTIVE: Contrast-to-noise ratios were measured on radiographs from two types of state-of-the-art chest imaging systems (an Advanced Multiple Beam Equalization Radiography [AMBER] system and an asymmetric screen-film system) to facilitate an objective co ... Full text Link to item Cite

Observer evaluation of scatter subtraction for digital portable chest radiographs.

Journal Article Invest Radiol · August 1993 Featured Publication RATIONALE AND OBJECTIVES: The authors compared standard digital portable chest radiographs (DPCXR) to scatter-subtracted DPCXR: METHODS: Thirty DPCXR were obtained using a photostimulable phosphor digital imaging system and a posterior beam stop (PBS) tech ... Full text Link to item Cite

Measurement of scatter fractions in erect posteroanterior and lateral chest radiography.

Journal Article Radiology · July 1993 Featured Publication Scatter fractions (SFs) measured in patients undergoing erect posteroanterior (PA) and lateral chest radiography with a 12:1 antiscatter grid are reported. Modifications to the posterior beam-stop (PBS) technique allowed measurement of scatter in these pat ... Full text Link to item Cite

Scatter compensation for digital chest radiography using maximum likelihood expectation maximization.

Journal Article Invest Radiol · May 1993 Featured Publication RATIONALE AND OBJECTIVES: An iterative maximum likelihood expectation maximization algorithm (MLEM) has been developed for scatter compensation in chest radiography. METHODS: The MLEM technique produces a scatter-reduced image which maximizes the probabili ... Full text Link to item Cite

Variable compensation chest radiography performed with a computed radiography system: design considerations and initial clinical experience.

Journal Article Radiology · April 1993 Featured Publication The authors describe a variable compensation (VC) technique in which an x-ray equalizer and a computed radiography system are used. The VC technique allows retrospective alteration of equalized chest appearance with maintenance of improved signal-to-noise ... Full text Link to item Cite

Digital chest radiography with photostimulable storage phosphors: signal-to-noise ratio as a function of kilovoltage with matched exposure risk.

Journal Article Radiology · February 1993 Featured Publication A photostimulable storage phosphor (PSP) digital radiography system was evaluated regarding the signal-to-noise ratio (S/N) on chest images acquired at differing peak kilovoltage settings but with matched risk from radiation exposure. Images of two chest p ... Full text Link to item Cite

Physician experience with viewing digital radiographs in an intensive care unit environment.

Journal Article J Digit Imaging · February 1993 Featured Publication After several years of continuous operation, the utility of digital viewing stations as assessed by bedside clinicians has been investigated through the distribution of questionnaires to past and present users. The results of the questionnaire have indicat ... Full text Link to item Cite

Time comparison of intensive care units with and without digital viewing systems.

Journal Article J Digit Imaging · February 1993 Featured Publication As hospital radiology departments and intensive care units (ICUs) make plans to use or expand the usage of digital data outside of the radiology department, the need to assess the requirements of the potential recipients in the ICUs has become more importa ... Full text Link to item Cite

An artificial neural network for estimating scatter exposures in portable chest radiography.

Journal Article Med Phys · 1993 Featured Publication An adaptive linear element (Adaline) was developed to estimate the two-dimensional scatter exposure distribution in digital portable chest radiographs (DPCXR). DPCXRs and quantitative scatter exposure measurements at 64 locations throughout the chest were ... Full text Link to item Cite

Extended experience with digital radiography and viewing in an ICU environment

Journal Article Proceedings of SPIE the International Society for Optical Engineering · December 1, 1992 After several years of continual operation, the utility of digital viewing stations was investigated by distributing questionnaires to past and present users. The results of the questionnaire indicated that the respondents preferred using the workstations ... Cite

Time comparison of ICUs with and without digital viewing systems

Journal Article Proceedings of SPIE the International Society for Optical Engineering · December 1, 1992 As hospital radiology departments and ICUs make plans to use or expand the usage of digital data outside of radiology, the need to assess the requirements of the potential recipients in the ICUs has become more important. The present operations in an inten ... Cite

Digital radiography with photostimulable storage phosphors. Control of detector latitude in chest imaging.

Journal Article Invest Radiol · October 1992 Featured Publication RATIONALE AND OBJECTIVES: A widely used digital radiography system based on a photostimulable storage phosphor (PSP) detector was analyzed with regard to radiographic contrast changes that result from the adjustment of detector latitude (x-ray sensitivity ... Full text Link to item Cite

Measurement of scatter fractions in clinical bedside radiography.

Journal Article Radiology · June 1992 Featured Publication The authors present measurements of scatter fraction (SF), the ratio of scattered to total imaged photons, from clinical bedside radiographs of 102 patients. These measurements were obtained by using a new posterior beam-stop technique that does not alter ... Full text Link to item Cite

Threshold perception performance with computed and screen-film radiography: implications for chest radiography.

Journal Article Radiology · April 1992 Featured Publication Images of a phantom obtained with computed radiography and standard screen-film imaging were compared to evaluate observer threshold perception performance with a modified contrast-detail technique. Optimum exposure necessary for performance with the imagi ... Full text Link to item Cite

Digital chest radiography with storage phosphor systems: potential masking of bilateral pleural effusions.

Journal Article J Digit Imaging · February 1992 Featured Publication A photostimulable storage phosphor (PSP) computed radiography imaging system was analyzed for its potential to mask pleural effusion during normal image processing. This phenomenon has been observed in several clinical cases in our hospital. To better unde ... Full text Link to item Cite

Posterior beam-stop method for scatter fraction measurement in digital radiography.

Journal Article Invest Radiol · February 1992 Featured Publication The authors presented a new posterior beam-stop (PBS) technique for measuring the ratio of scattered to total-detected photon flux (scatter fraction) in a radiographic examination while preserving the diagnostic quality of the image. The scatter measuremen ... Full text Link to item Cite

Small object contrast in AMBER and conventional chest radiography.

Journal Article Radiology · September 1991 Featured Publication The ability of a commercially available scanning equalization system for chest radiography to render small object contrast in the lung-, mediastinum-, and subdiaphragm-equivalent regions of an acrylic chest phantom was quantitatively evaluated. Images from ... Full text Link to item Cite

Single-exposure conventional and computed radiography image acquisition.

Journal Article Invest Radiol · May 1991 Featured Publication A technique for simultaneously acquiring a conventional film-screen radiographic image and a digital computed radiography (CR) image with a single x-ray exposure is described. Measurements of image contrast, spatial resolution, and signal-to-noise ratios d ... Full text Link to item Cite

Imaging of the intensive care unit patient.

Journal Article Clin Chest Med · March 1991 Featured Publication Despite advances in "high tech," it is anticipated that plain chest film radiography will continue to play a significant role in the management of patients in the ICU. Digital radiography will most likely displace conventional approaches. As demonstrated t ... Link to item Cite

Quantitative scatter measurement in digital radiography using a photostimulable phosphor imaging system.

Journal Article Med Phys · 1991 Featured Publication X-ray scatter fractions measured with two detectors are compared: a photostimulable phosphor system (PSP) and a conventional film-screen technique. For both detection methods, a beam-stop technique was used to estimate the scatter fraction in polystyrene p ... Full text Link to item Cite

Scatter fractions in AMBER imaging.

Journal Article Radiology · December 1990 Featured Publication Images of two phantoms were obtained with use of an advanced multiple-beam equalization radiography system, and scatter fractions were estimated with use of a photostimulable phosphor imaging system. Scatter fractions in the equalized images were lower in ... Full text Link to item Cite

Initial experience with automatic image transmission to an intensive care unit using PACS technology

Journal Article Proceedings of SPIE the International Society for Optical Engineering · December 1, 1990 This report describes the refinement of the interaction between a CR system and PACS that has made the automatic distribution of images to specified locations possible. Those interactions between the CR and the PACS that were considered important to the ac ... Cite

Chest radiographs boast superior anatomic detail.

Journal Article Diagn Imaging (San Franc) · November 1990 Featured Publication Link to item Cite

Initial experience with automatic image transmission to an intensive care unit using Picture Archiving and Communications System technology.

Journal Article J Digit Imaging · August 1990 Featured Publication This report describes a refinement of the interaction between a Computed Radiography (CR) system and a Picture Archiving and Communications System (PACS) that has made possible automatic distribution of images to specified locations. Those interactions bet ... Full text Link to item Cite

Counterclockwise exit of cardiac pacemaker leads: sign of pulse-generator flip.

Journal Article Radiology · March 1990 Featured Publication Clockwise exit of pacing leads from transvenous cardiac pacemakers is generally essential for proper function. The authors report a case in which counterclockwise exit of the pacing leads signified a 180 degree flip of the pulse generator. Three types of p ... Full text Link to item Cite

Tissue plasminogen activator for the treatment of acute pulmonary embolism. A collaborative study by the PIOPED Investigators.

Journal Article Chest · March 1990 Thirteen patients with acute pulmonary embolism were treated in a randomized double-blind fashion either with recombinant tissue plasminogen activator (rt-PA) 40 to 80 mg, usually in combination with heparin, or with placebo plus heparin. The drug was admi ... Full text Link to item Cite

Quantitative radiographic imaging using a photostimulable phosphor system.

Journal Article Med Phys · 1990 Featured Publication We have evaluated a photostimulable phosphor x-ray imaging system [Philips Computed Radiography (PCR) system] for use in quantification of x-ray exposure in diagnostic radiography. An exponential function was fitted to data yielding quantitative x-ray expo ... Full text Link to item Cite

Magnetic resonance imaging of the thoracic cavity using a paused 3DFT acquisition technique.

Journal Article Magn Reson Imaging · 1990 Featured Publication A new pulse sequence designed for magnetic resonance imaging of the entire thoracic cavity is described. This sequence, called 3DPAUSE, is a rapid three-dimensional Fourier transform (3DFT) sequences with periodic pauses for breathing and additional rf pul ... Full text Link to item Cite

A computed radiography imaging network

Journal Article Medicamundi · December 1, 1989 Over a period of eighteen months, the authors have evaluated a Philips Computed Radiography (PCR) system coupled with a network of display workstations. Portable chest radiographs in the cardiac care unit are routinely made using the PCR system, and the im ... Cite

Image optimization in a computed-radiography/photostimulable-phosphor system.

Journal Article J Digit Imaging · November 1989 Featured Publication Photostimulable phosphor imaging is an exciting new technology that has several advantages over film/screen radiography, the most important of which is the linearity of the photostimulable phosphor system over a wide exposure latitude. The photostimulable ... Full text Link to item Cite

Medical student perceptions of diagnostic radiology. Influence of a senior radiology elective.

Journal Article Invest Radiol · September 1989 Featured Publication To assess the impact of a four-week elective on medical student perceptions of diagnostic radiology, we gave questionnaires to 96 senior students on the first and last days of the rotation. Eighty-five anonymous entrance responses and 73 exit responses wer ... Full text Link to item Cite

Digital radiography and pacs

Journal Article Proceedings of SPIE the International Society for Optical Engineering · May 25, 1989 The use of a Digital Radiography system (DR) with a digital interface to a PACS, greatly increases the potential of the system for effective communications, since it makes the majority of the cases done in the radiology department available without the nee ... Full text Cite

Three-dimensional imaging of the thoracic cavity.

Journal Article Invest Radiol · April 1989 Featured Publication Three-dimensional (3D) surface reconstruction techniques were applied to sets of computed tomographic (CT) images of the thoracic cavity. Emphasis was placed on extracting lung images. High quality, detailed 3D images of the lung surface and internal bronc ... Full text Link to item Cite

Scatter compensation in digital chest radiography using Fourier deconvolution.

Journal Article Invest Radiol · January 1989 Featured Publication The authors present a numerical deconvolution technique to compensate for image degrading effects caused by scattered photons in radiographic chest images. Fourier transform techniques are used to deconvolve a shift invariant model of the two dimensional p ... Full text Link to item Cite

Thoracic Imaging in the Intensive Care Unit

Journal Article Journal of Intensive Care Medicine · January 1, 1989 Chest radiography is the most common radiological ex amination performed in the United States. Of the more than 260,000 radiological examinations performed an nually at our institution, slightly more than 21% are portable chest radiographs. Routine bedside ... Full text Cite

Film traffic queueing model for the DUMC radiology department

Journal Article Proceedings of SPIE the International Society for Optical Engineering · June 27, 1988 Using the Performance Analysis Workstation (PAW), a UNIX based modeling and performance analysis tool, the use of film in the Duke University Medical Center (DUMC) Radiology Department has been simulated. The Radiology Department Traffic Model for DUMC sim ... Full text Cite

Effects of image processing on nodule detection rates in digitized chest radiographs: ROC study of observer performance.

Journal Article Radiology · February 1988 Featured Publication To evaluate the effects of image processing in digitized chest radiographs when high-resolution images are used, an examination was done in which the detection of pulmonary nodules in unprocessed digitized chest radiographs was compared with that in images ... Full text Link to item Cite

Pulmonary vascularity: radiographic considerations.

Journal Article J Thorac Imaging · January 1988 Featured Publication Distribution of pulmonary vascularity, as imaged on the routine chest radiograph, may be used as an accurate and sensitive indicator of underlying pathophysiologic change. The lungs, like most other human organ systems, have extensive reserve capability. S ... Full text Link to item Cite

Cardiac involvement in systemic disease

Journal Article Postgraduate Radiology · January 1, 1988 Cite

Occult spontaneous esophageal perforation. Unusual clinical and radiographic presentation.

Journal Article Chest · September 1987 Featured Publication We report a unique presentation of spontaneous esophageal perforation or Boerhaave's syndrome. Our patient had no risk factors predisposing her to barogenic rupture of the esophagus, and she had none of the "classic" presenting signs. She was asymptomatic, ... Full text Link to item Cite

The radiographic distinction between pericardial and myocardial calcifications.

Journal Article AJR Am J Roentgenol · April 1987 Featured Publication Calcification overlying the left side of the heart on a chest radiograph may involve either the pericardium or, alternatively, the myocardium in association with a left ventricular aneurysm. Distinction between these two conditions can be of great clinical ... Full text Link to item Cite

Differentiation of benign from malignant pulmonary nodules with digitized chest radiographs.

Journal Article Radiology · March 1987 Featured Publication To assess whether it is possible to distinguish benign from malignant solitary pulmonary nodules with digital techniques, a retrospective study of 68 patients with proved solitary nodules was performed. The conventional chest radiograph for each patient wa ... Full text Link to item Cite

Reinforced endotracheal tube placement: radiographic misdiagnosis.

Journal Article Radiology · February 1987 Featured Publication The position of an armored endotracheal tube was misinterpreted on radiographs. This occurred because no one recognized that there was no radiopaque line extending to the tip of the catheter. Physicians should be aware of this possible pitfall, and manufac ... Full text Link to item Cite

IMPLEMENTATION OF ADAPTIVE FILTRATION FOR DIGITAL CHEST IMAGING.

Journal Article Optical Engineering · January 1, 1987 Full text Cite

Performance of high-resolution monitors for digital chest imaging.

Journal Article Med Phys · 1987 Featured Publication High-resolution cathode-ray tubes (CRT's) are currently the most viable soft-copy display for digital radiography. We present here methods for measuring large-area contrast ratio and detail contrast ratio. A two-dimensional charge coupled device (ccd) arra ... Full text Link to item Cite

Imaging of the axillary subsegment of the right upper lobe.

Journal Article Chest · November 1986 Featured Publication The bronchial supply of the lateral or axillary area of the right upper lobe is variable. In 16 percent of normal subjects, an independent ramus of the posterior right upper lobe bronchus supplies an axillary subsegment. Airspace disease in the axillary su ... Full text Link to item Cite

Radiographic recognition of pneumothorax in the intensive care unit.

Journal Article Crit Care Med · August 1986 Featured Publication Recognizing pneumothorax and hydropneumothorax on chest x-rays of supine ICU patients requires attention to areas other than the lung apex. Pleural air in a supine patient collects in the anterior costophrenic sulcus, producing hyperlucency over the upper ... Full text Link to item Cite

Phased implementation of AT&T PACS at Duke University Medical Center

Journal Article Proceedings of SPIE the International Society for Optical Engineering · June 12, 1986 “Help me communicate more quickly and more effectively with referring clinicians”. This request was the driving force behind the installation of the AT&T CommView™ System at Duke. The CommView System is a type of Digital Image Management System and Picture ... Full text Cite

The radiology of cardiac pacemakers.

Journal Article Radiographics · May 1986 Featured Publication Radiology is valuable in determining the cause of pacemaker malfunction and in the evaluation of lead position and integrity. ... Full text Link to item Cite

Diagnosis of pulmonary embolism.

Journal Article Arch Intern Med · May 1986 Featured Publication An accurate diagnosis of pulmonary embolism is essential to prevent excessive morbidity and mortality from lack of therapy or inappropriate anticoagulation. Clinical signs and symptoms are reported to be nonspecific, although published studies do not allow ... Link to item Cite

Utilization of lung scans by clinicians.

Journal Article J Nucl Med · March 1986 Featured Publication To determine the effect of clinical assessments and lung scan results on the management of patients, we studied 566 consecutive patients referred for lung scans because of suspected pulmonary embolism. Prior to the lung scan, the clinician was asked to est ... Link to item Cite

The case for a clinical year prior to radiology residency.

Journal Article Invest Radiol · March 1986 Featured Publication Full text Link to item Cite

Histogram-directed processing of digital chest images.

Journal Article Invest Radiol · March 1986 Featured Publication One of the potential advantages of digital chest imaging is the ability to process these images. However, such processing, when uniformly applied to the entire image, is often unsatisfactory due to the different processing requirements of lung field and me ... Full text Link to item Cite

Phased implementation of AT&T pacs at duke university medical center

Journal Article Proceedings of SPIE the International Society for Optical Engineering · January 1, 1986 “Help me communicate more quickly and more effectively with referring clinicians”. This request was the driving force behind the installation of the AT&T CommViewm System at Duke. The CommView System is a type of Digital Image Management System and Picture ... Full text Cite

Digital synthesis of lung nodules.

Journal Article Invest Radiol · December 1985 Featured Publication Studies evaluating observer accuracy and visual perception of pulmonary nodules usually are based upon test films obtained from clinical practice in patients with proven pulmonary nodules. Unfortunately, such nodules do not always occur in the optimal size ... Full text Link to item Cite

CHANGES AND TRENDS IN DIAGNOSTIC IMAGING.

Journal Article undefined · December 1, 1985 This paper traces the development of superior imaging techniques from the introduction of diagnostic ultrasound, to computerized tomographic scan, and, finally, to magnetic resonance imaging. It also discusses the change in the role of radiology from diagn ... Cite

Radiographic manifestations of cardiac sarcoid.

Journal Article AJR Am J Roentgenol · October 1985 Featured Publication On the basis of autopsy series, the incidence of direct cardiac involvement in sarcoidosis has been estimated to be 20%-27%. It may be recognized clinically when patients with known systemic sarcoidosis present with arrhythmias, conduction disturbances, or ... Full text Link to item Cite

Intrathoracic metastasis from an extrathoracic malignancy: a radiographic approach to patient evaluation.

Journal Article Radiol Clin North Am · September 1985 Featured Publication The likelihood of metastatic spread of an extrathoracic primary tumor to the thorax depends on a number of factors, most importantly, the site and nature of the primary tumor. Although the plain chest radiography remains the first-line screening procedure, ... Link to item Cite

Right atrial appendage pacing: radiographic considerations.

Journal Article AJR Am J Roentgenol · July 1985 Featured Publication Transvenous pacing accomplished from the right atrial appendage, either alone or in combination with right ventricular pacing, is becoming increasingly popular for selected patients in whom the contribution of atrial systole is advantageous. On the frontal ... Full text Link to item Cite

Processing alternatives for digital chest imaging.

Journal Article Radiol Clin North Am · June 1985 Featured Publication Radiographic imaging of the chest remains one of the most important and most challenging problems in radiology. The wide range of information that results from the great variation of radiation behind the lungs compared with that behind the mediastinum crea ... Link to item Cite

Obscured aortic arch on the lateral view as a sign of coarctation.

Journal Article Radiology · December 1984 Featured Publication Forty patients with coarctation of the aorta were compared with 80 normal subjects matched by sex and age. The aortic arch was invisible on the lateral radiograph in 84% of patients preoperatively and 88% postoperatively. Only 6 normal subjects (8%) had a ... Full text Link to item Cite

Shunt vascularity in a young patient with right-sided aortic arch.

Journal Article Chest · August 1984 Featured Publication Full text Link to item Cite

Unusual radiologic manifestations of bronchogenic cyst.

Journal Article South Med J · June 1984 Featured Publication We have presented four cases of bronchogenic cyst, emphasizing the uncommon radiologic manifestations, including air trapping and/or lobulated contour. Two of the cysts were in the lung parenchyma, one in the left hilum adherent to the left lower lobe bron ... Full text Link to item Cite

Thoracic cryptococcosis: immunologic competence and radiologic appearance.

Journal Article AJR Am J Roentgenol · May 1984 Featured Publication Cryptococcosis, a potentially fatal pulmonary infection, is being recognized with increased frequency in both immunologically compromised patients and those without obvious predisposing factors. This review of 24 cases of proven pulmonary cryptococcosis in ... Full text Link to item Cite

Limited value of interlaced ECG-gated radiography in the presence of a normal chest radiograph.

Journal Article AJR Am J Roentgenol · January 1984 Featured Publication Twenty-seven patients with normal posteroanterior and lateral chest radiographs, who were undergoing cardiac catheterization because of symptoms strongly suggesting coronary artery disease, also had posteroanterior and lateral interlaced electrocardiogram- ... Full text Link to item Cite

A survey of digital chest radiography.

Journal Article Radiol Clin North Am · December 1983 Featured Publication The problems of chest radiography as they relate to digital systems are described, the current approaches to these problems are reviewed, and the utility of digital chest radiography is demonstrated. ... Link to item Cite

Lung scan interpretation: effect of different observers and different criteria.

Journal Article Radiology · December 1983 Featured Publication Many nuclear medicine physicians use criteria put forth by McNeil or Biello et al. to interpret lung scintigrams, while others use an integration of these and other reported or personal criteria. Interobserver variation within these schemes has not been as ... Full text Link to item Cite

The ICU chest film. Cardiopulmonary monitoring and assist devices.

Journal Article Cardiol Clin · November 1983 Featured Publication Numerous catheters, tubes, and other devices have been designed in recent years to facilitate monitoring and assistance of cardiopulmonary physiology in the intensive care patient. These devices have resulted in major improvements in care of the critically ... Link to item Cite

Peripheral middle lobe syndrome.

Journal Article Radiology · October 1983 Featured Publication Classically, the middle lobe syndrome has been described as being caused by a central obstruction. Clinical records and radiologic findings were reviewed in 129 patients examined between 1955-1981 who had chronic disease in the right middle lobe and/or lin ... Full text Link to item Cite

Radiographic analysis of pulmonary vascular distribution: a review.

Journal Article Bull N Y Acad Med · October 1983 Featured Publication Link to item Cite

Adult-onset pulmonary tuberculosis.

Journal Article Radiology · August 1983 Featured Publication Medical records and radiographs of 103 adults with primary tuberculosis were reviewed. The shift toward delayed presentation appears to be related to decreasing childhood exposure and an increasing number of compromised hosts. Compared with classic "childh ... Full text Link to item Cite

Tracheobronchial mucoid pseudotumors.

Journal Article South Med J · July 1983 Featured Publication A collection of mucus, indistinguishable from tumor, can be shown in the tracheobronchial tree, particularly during tomography. These "mucoid pseudotumors" may be distinguished from true tumors by documenting their disappearance after having the patient co ... Full text Link to item Cite

Solitary pulmonary metastases in high-risk melanoma patients: a prospective comparison of conventional and computed tomography.

Journal Article AJR Am J Roentgenol · July 1983 Featured Publication A prospective comparison of chest radiography, conventional tomography, and computed tomography (CT) in the detection or confirmation of solitary pulmonary nodules was made in 42 patients with high propensity for pulmonary metastases due to advanced local ... Full text Link to item Cite

Comparison of CT localization radiography and high-kilovoltage chest radiography.

Journal Article AJR Am J Roentgenol · June 1983 Featured Publication Twenty-five patients had localization radiography before chest computed tomography (CT) for evaluation of pulmonary nodules, staging of lung carcinoma, or suspected metastatic disease. Evaluation of the localization radiograph and the 140 k Vp frontal ches ... Full text Link to item Cite

Midline lucency following median sternotomy.

Journal Article Chest · May 1983 Featured Publication Full text Link to item Cite

The 'optimal' chest radiograph

Journal Article Seminars in Respiratory Medicine · January 1, 1983 Full text Cite

Radiologic evaluation of acute chest trauma.

Journal Article Crit Rev Diagn Imaging · 1983 Featured Publication Link to item Cite

Use of pulmonary angiography for suspected pulmonary embolism: influence of scintigraphic diagnosis.

Journal Article AJR Am J Roentgenol · October 1982 Featured Publication The use of pulmonary angiography as related to ventilation-perfusion scintigraphy was studied at two teaching hospitals in 600 patients clinically suspected of having pulmonary embolism, using a combined prospective-retrospective approach. Sixty patients u ... Full text Link to item Cite

The efficacy of full-lung tomography in the detection of early metastatic disease from melanoma.

Journal Article Radiology · July 1982 Featured Publication In a prospective study, 62 patients with proved melanoma and negative chest radiographs underwent full-lung tomography. Of 109 examinations performed, 12 patients had positive findings on tomography; nine were false-positive and three were true-positive. O ... Full text Link to item Cite

Fatal pneumocystis pneumonia, cryptococcosis, and Kaposi sarcoma in a homosexual man.

Journal Article AJR Am J Roentgenol · March 1982 Featured Publication Full text Link to item Cite

Calcification in pulmonary metastases.

Journal Article Br J Radiol · February 1982 Featured Publication A large variety of neoplasms can produce calcified lung metastases. Three unusual examples are presented and the relevant literature is reviewed. Each case involves a neoplasm not previously reported to produce calcified lung metastases: malignant mesenchy ... Full text Link to item Cite

Thymoma detection by mediastinal CT: patient with myasthenia gravis.

Journal Article AJR Am J Roentgenol · February 1982 Featured Publication The precise role of computed tomography (CT) in evaluating the mediastinum for thymomas in patients with myasthenia gravis is not defined. The only published CT accuracy assessment reports a false-positive rate of 90%. Mediastinal CT was performed in 23 co ... Full text Link to item Cite

Roentgenographic abnormalities in Rocky Mountain Spotted Fever.

Journal Article South Med J · February 1982 Featured Publication Rock Mountain spotted fever (RMSF) is a tick-borne rickettsial disease which produces a widespread vasculitis. A mortality of 7% to 13% has been reported in the United States which is due at least in part to delay in diagnosis and appropriate treatment. Th ... Full text Link to item Cite

Experimental pulmonary infarction in dogs: a comparison of chest radiography and computed tomography.

Journal Article Invest Radiol · 1982 Transcatheter electrocoagulation of the pulmonary artery was used to successfully create experimental pulmonary infarcts in 15 to 16 dogs. The animals were evaluated from one to 13 weeks by chest radiography, computed tomography (CT), angiography, and path ... Link to item Cite

Accuracy of the chest radiograph in diagnosis of pulmonary embolism.

Journal Article Invest Radiol · 1982 Featured Publication In an effort to determine the sensitivity and specificity of the chest roentgenogram for the diagnosis of pulmonary embolism, roentgenograms of 152 patients who were all suspected of having pulmonary embolism were randomized and presented to nine interpret ... Full text Link to item Cite

Comparison of plain radiography, conventional tomography, and computed tomography in detecting intrathoracic lymph node metastases from lung carcinoma.

Journal Article Radiology · January 1982 Featured Publication Forty-two patients with T2 bronchogenic carcinoma were evaluated with plain radiography, conventional 55 degrees oblique hilar and anteroposterior mediastinal tomography, and computed tomography (CT) to compare their accuracy in assessing mediastinal and h ... Full text Link to item Cite

Abdominal radiography in the emergency department: a prospective analysis.

Journal Article Ann Emerg Med · January 1982 Featured Publication We present a prospective analysis of 100 consecutive abdominal radiographs of 96 emergency patients who were referred to radiology with a variety of abdominal complaints. In patients with diffuse, nonspecific abdominal pain, nausea, vomiting, or gastrointe ... Full text Link to item Cite

Pulmonary alveolar proteinosis with interstitial involvement.

Journal Article AJR Am J Roentgenol · November 1981 Featured Publication Full text Link to item Cite

Worsening pulmonary hypertension after resection of arteriovenous fistula.

Journal Article AJR Am J Roentgenol · October 1981 Featured Publication Full text Link to item Cite

Persistent endotracheal tube cuff overdistension: a sign of tracheomalacia.

Journal Article AJR Am J Roentgenol · August 1981 Featured Publication Full text Link to item Cite

Metastatic melanoma in the thorax: report of 130 patients.

Journal Article AJR Am J Roentgenol · August 1981 Featured Publication Early detection of metastatic melanoma has become more important as newer and more effective therapeutic regimens are used. Between 1970 and 1980, 1,600 patients were treated at one institution for malignant melanoma. Of these, 260 (16.3%) developed thorac ... Full text Link to item Cite

The radiology of thoracic trauma.

Journal Article Bull N Y Acad Med · May 1981 Featured Publication Link to item Cite

Effect of vertical cassette holder design and construction on scatter-to-primary radiation ratios.

Journal Article Radiology · February 1981 Featured Publication This paper analyzes the contribution to scattered radiation at the film plane by individual components of a conventional wall-mounted cassette holder. With grid technique, scatter from the front panel of the cassette holder is effectively reduced, but cons ... Full text Link to item Cite

Coronary sinus atrial pacing: radiographic considerations.

Journal Article AJR Am J Roentgenol · February 1981 Featured Publication Transvenous atrial pacing via an electrode placed in the coronary sinus has become an increasingly frequent procedure during the past 10 years for both diagnosis and therapy of cardiac arrhythmias. The coronary sinus has five major venous tributaries, any ... Full text Link to item Cite

Physical principles governing the interrelationships of pressure, flow and volume in collapsible tubes.

Journal Article Invest Radiol · 1981 Featured Publication Basic principles of fluid mechanics may be used to analyze the relationships of flow, pressure and cross-sectional area of any collapsible tube, including pulmonary blood vessels. The cross-sectional area of a collapsible tube is a direct function of trans ... Full text Link to item Cite

Massive calcification of the mitral annulus in a 17-year-old patient with juvenile rheumatoid arthritis and systemic lupus erythematosis.

Journal Article Cardiovasc Intervent Radiol · 1981 Featured Publication Mitral annulus calcification (MAC), while a relatively frequent autopsy finding in older patients, is rare in childhood. Such calcification has generally been regarded as a degenerative change and of no clinical significance. Recent studies have shown that ... Full text Link to item Cite

Re-expansion pulmonary edema.

Journal Article Chest · May 1980 Featured Publication Full text Link to item Cite

Catheter malposition.

Journal Article AJR Am J Roentgenol · March 1980 Featured Publication Full text Link to item Cite

Detection of metastatic disease from carcinoma of the breast: limited value of full lung tomography.

Journal Article AJR Am J Roentgenol · February 1980 Featured Publication Until now no large prospective study has been made to evaluate the efficacy of full lung tomography in detection of pulmonary metastases from carcinoma of the breast in the presence of a negative chest radiograph. In the current study, 144 patients with pr ... Full text Link to item Cite

Pulmonary changes after primary irradiationfor early breast carcinoma.

Journal Article AJR Am J Roentgenol · January 1980 Featured Publication The clinical records and radiographs of 37 patients with carcinoma of the breast (stages I and II) treated with primary radiation therapy without mastectomy were reviewed. In 10 patients, there was a radiographic pattern of increased radiopacity in the lun ... Full text Link to item Cite

Traumatic para-mediastinal air cysts.

Journal Article Br J Radiol · January 1980 Full text Link to item Cite

Air crescent sign of invasive aspergillosis.

Journal Article Radiology · October 1979 Featured Publication Pulmonary infection in immunocompromised patients is frequently difficult to diagnose. Therapy for the more common pathogens differs greatly from that for infection with unusual opportunistic organisms. However, neither of these infectious agents offers sp ... Full text Link to item Cite

Radiographic features of mediastinal anatomy.

Journal Article Chest · May 1979 Featured Publication Full text Link to item Cite

Intercostal artery laceration during thoracocentesis: increased risk in elderly patients.

Journal Article Chest · April 1979 Featured Publication Two cases of intercostal artery laceration following thoracocentesis are reported. Subsequent analysis of 29 thoracic aortograms demonstrated a definite trend toward increasing tortuosity of intercostal arteries with advancing age. Consequently, the amount ... Full text Link to item Cite

Primary mediastinal seminoma.

Journal Article AJR Am J Roentgenol · January 1979 Featured Publication Four new cases of primary mediastinal seminoma are presented, and the 103 previously reported cases reviewed. All of the tumors occurred in the anterior mediastinum, and generally appeared as lobulated noncalcified masses on chest radiography. Most patient ... Full text Link to item Cite

The three syndromes of fat embolism: pulmonary manifestations.

Journal Article Yale J Biol Med · 1979 Featured Publication The clinical course and radiographs of 30 patients with fat embolism syndrome were reviewed. In all cases the classic triad of neurologic dysfunction, respiratory insufficiency, and petechiae were present. Three responses to embolized fat were noted. The h ... Link to item Cite

Mediastinal masses of vascular origin. A review.

Journal Article J Thorac Cardiovasc Surg · October 1978 Featured Publication Vascular lesions must be considered in the differential diagnosis of mediastinal masses. Knowledge of the vascular anatomy of the mediastinum and the clinical setting, as well as an awareness of key radiographic features, should suggest the vascular origin ... Link to item Cite

Benign pneumoperitoneum following median sternotomy incision.

Journal Article AJR Am J Roentgenol · August 1978 Featured Publication Because of the close anatomic relationship of the pericardium, diaphragm, and peritoneal cavity, a benign pneumoperitoneum may occur following median sternotomy incision and cardiac surgery. The pneumoperitoneum results from inadvertent opening of the peri ... Full text Link to item Cite

Chest pain in the nontraumatized patient.

Journal Article Radiol Clin North Am · April 1978 Featured Publication The radiologist plays an important role in the examination of nontraumatized patients with chest pain presenting in the emergency room. In some instances, a diagnosis can be made on the basis of the initial radiograph. In others, consultation with the refe ... Link to item Cite

Elevation of pulmonary artery pressure as a sign of pulmonary barotrauma (pneumothorax).

Journal Article Crit Care Med · 1978 Featured Publication Pneumothorax occurs in approximately 25% of patients maintained on high levels of positive end-expiratory pressure. In several cases at our Institution, a sudden and rapid elevation in pulmonary artery pressure (PAP) monitored by use of the Swan-Ganz cathe ... Full text Link to item Cite

Chest tomography: a practical approach

Journal Article Appl Radiol · December 1, 1977 Tomography is a specialized radiographic technique that allows one to better visualize an area of interest by selectively blurring out superimposed obscuring structures. It does not improve the sharpness of any portion of the radiographic image; in fact, i ... Cite

Radiographic manifestations of acute smoke inhalation.

Journal Article AJR Am J Roentgenol · November 1977 Featured Publication Acute smoke inhalation may lead to serious pulmonary injury and contribute significantly to mortality of fire victims. The chest radiographic findings in 21 patients with acute smoke inhalation are analyzed, and possible pathophysiologic mechanisms respons ... Full text Link to item Cite

In vitro effects of lidocaine on anaerobic respiratory pathogens and strains of Hemophilus influenzae.

Journal Article Chest · October 1977 Featured Publication Lidocaine is commonly employed as a topical anesthetic agent during fiberoptic bronchoscopic procedures or transbronchial brushing. Previous studies have demonstrated an inhibitory effect of lidocaine on the growth in culture media of gram-positive and gra ... Full text Link to item Cite

PEEP: radiographic features and associated complications.

Journal Article AJR Am J Roentgenol · August 1977 Featured Publication Positive and expiratory pressure (PEEP) has been used for several years in the treatment of acute respiratory failure. Dramatic improvement in the chest radiograph may occur with institution of PEEP; the degree of change parallels the levels of positive an ... Full text Link to item Cite

Intraaortic counterpulsation balloon: radiographic considerations.

Journal Article AJR Am J Roentgenol · June 1977 Featured Publication The intraaortic counterpulsation balloon is being used with increasing frequency in the setting of cardiogenic shock and/or high risk cardiac surgery. The radiologist should be aware of the normal function of this cardiac assist device, as well as its pote ... Full text Link to item Cite

Thoracocentesis of loculated pleural effusions using grey scale ultrasonic guidance.

Journal Article Chest · May 1977 Featured Publication Six patients with either malignant pleural effusion or empyema, in whom multiple conventional attempts at thoracocentesis were unsuccessful, were evaluated by ultrasound. In each case, a subsequent thoracocentesis guided by ultrasound produced sufficient f ... Full text Link to item Cite

Pulmonary hypertension and sleep apnea.

Journal Article N Engl J Med · March 17, 1977 Full text Link to item Cite

Reuse of disposable catheters and guide wires.

Journal Article Radiology · March 1977 Featured Publication Recent government directives and manufacturers' warnings have strongly cautioned against reuse of angiographic catheters and guide wires following cleaning and sterilization. Though it is theoretically possible that complications might result from reuse, a ... Full text Link to item Cite

Concentration of 99mTechnetium polyphosphate in fibrothorax following pneumonectomy.

Journal Article Radiology · February 1977 Featured Publication Following the injection of 99mTechnetium-polyphosphate for bone scanning, a diffuse accumulation of radioactivity in post-pneumonectomy fibrothorax was demonstrated in 3 patients. This substantiates the nonspecificity of the localization of 99mTc-phosphoru ... Full text Link to item Cite

Cytomegaloviral infection presenting as a solitary pulmonary nodule.

Journal Article Chest · February 1977 Featured Publication Cytomegaloviral infection presenting in an immunologically compromised host as a solitary pulmonary nodule has not previously been reported. A patient with a renal transplant and with no pulmonary symptoms was noted to have a single nodule on a chest roent ... Full text Link to item Cite

Vanishing lung: clinical and radiographic features

Journal Article American Review of Respiratory Disease · January 1, 1977 Cite

Post-traumatic pneumatocele in the inferior pulmonary ligament.

Journal Article Radiology · October 1976 Featured Publication Pneumatocele localized to the inferior pulmonary ligament is an uncommon sequel of blunt chest trauma. Three such cases are reported and the characteristic location and appearance of the pneumatocele, as well as its benign course, are discussed. A similar ... Full text Link to item Cite

Isolated intrapulmonary adenopathy in leukemia.

Journal Article Chest · July 1976 Featured Publication Full text Link to item Cite

Hazards of the intensive care unit.

Journal Article AJR Am J Roentgenol · February 1976 Featured Publication Complications arise in the introduction, maintenance, and use of devices for life support and monitoring in an intensive care unit. Since recognition of such complications is frequently difficult in this clinical setting, the radiologist is often in a posi ... Full text Link to item Cite

Hyperlucent lung after radiation therapy.

Journal Article Am Rev Respir Dis · August 1975 A 63-year-old woman was demonstrated to have a hyperlucent lung in a hemithorax irradiated 9 years previously for carcinoma of the breast. This is the second reported concurrence of these events. ... Full text Link to item Cite