Scholars@Duke
Brian C Allen

Brian C Allen

Professor of Radiology
Radiology, Abdominal Imaging

Selected Publications

ACR Appropriateness Criteria® Acute Onset of Scrotal Pain-Without Trauma, Without Antecedent Mass: 2024 Update.

Journal Article J Am Coll Radiol · November 2024 Acute scrotum is a medical emergency that requires prompt accurate diagnosis to appropriately triage potentially surgical conditions. Numerous differential diagnoses with overlapping clinical presentations make this a diagnostic challenge. Ultrasound is th ... Full text Link to item Cite

ACR Appropriateness Criteria® Pretreatment Staging of Urothelial Cancer: 2024 Update.

Journal Article J Am Coll Radiol · November 2024 Urothelial cancer is the second most common cancer, and cause of cancer death, related to the genitourinary tract. The goals of imaging for pretreatment staging of urothelial cancer are to evaluate for both local and distant spread of the cancer and assess ... Full text Link to item Cite

Is concurrent LR-5 associated with a higher rate of hepatocellular carcinoma in LR-3 or LR-4 observations? An individual participant data meta-analysis.

Journal Article Abdom Radiol (NY) · September 27, 2024 BACKGROUND: The Liver Imaging Reporting and Data System (LI-RADS) does not consider factors extrinsic to the observation of interest, such as concurrent LR-5 observations. PURPOSE: To evaluate whether the presence of a concurrent LR-5 observation is associ ... Full text Link to item Cite

ACR Appropriateness Criteria® Hydronephrosis on Prior Imaging-Unknown Cause.

Journal Article J Am Coll Radiol · June 2024 Initial imaging evaluation of hydronephrosis of unknown etiology is a complex subject and is dependent on clinical context. In asymptomatic patients, it is often best conducted via CT urography (CTU) without and with contrast, MR urography (MRU) without an ... Full text Link to item Cite

The Role of Imaging for GI Bleeding: ACG and SAR Consensus Recommendations.

Journal Article Radiology · March 2024 Gastrointestinal (GI) bleeding is the most common GI diagnosis leading to hospitalization within the United States. Prompt diagnosis and treatment of GI bleeding is critical to improving patient outcomes and reducing high health care utilization and costs. ... Full text Link to item Cite

The Role of Imaging for Gastrointestinal Bleeding: Consensus Recommendations From the American College of Gastroenterology and Society of Abdominal Radiology.

Journal Article Am J Gastroenterol · March 1, 2024 Gastrointestinal (GI) bleeding is the most common GI diagnosis leading to hospitalization within the United States. Prompt diagnosis and treatment of GI bleeding is critical to improving patient outcomes and reducing high healthcare utilization and costs. ... Full text Link to item Cite

LI-RADS CT and MRI Ancillary Feature Association with Hepatocellular Carcinoma and Malignancy: An Individual Participant Data Meta-Analysis.

Journal Article Radiology · February 2024 Background The independent contribution of each Liver Imaging Reporting and Data System (LI-RADS) CT or MRI ancillary feature (AF) has not been established. Purpose To evaluate the association of LI-RADS AFs with hepatocellular carcinoma (HCC) and malignan ... Full text Link to item Cite

Simplifying risk stratification for thyroid nodules on ultrasound: validation and performance of an artificial intelligence thyroid imaging reporting and data system.

Journal Article Curr Probl Diagn Radiol · 2024 PURPOSE: To validate the performance of a recently created risk stratification system (RSS) for thyroid nodules on ultrasound, the Artificial Intelligence Thyroid Imaging Reporting and Data System (AI TI-RADS). MATERIALS AND METHODS: 378 thyroid nodules fr ... Full text Link to item Cite

Individual Participant Data Meta-Analysis of LR-5 in LI-RADS Version 2018 versus Revised LI-RADS for Hepatocellular Carcinoma Diagnosis.

Journal Article Radiology · December 2023 Background A simplification of the Liver Imaging Reporting and Data System (LI-RADS) version 2018 (v2018), revised LI-RADS (rLI-RADS), has been proposed for imaging-based diagnosis of hepatocellular carcinoma (HCC). Single-site data suggest that rLI-RADS c ... Full text Link to item Cite

A Faster Prostate MRI: Comparing a Novel Denoised, Single-Average T2 Sequence to the Conventional Multiaverage T2 Sequence Regarding Lesion Detection and PI-RADS Score Assessment.

Journal Article J Magn Reson Imaging · August 2023 BACKGROUND: The T2 w sequence is a standard component of a prostate MRI examination; however, it is time-consuming, requiring multiple signal averages to achieve acceptable image quality. PURPOSE/HYPOTHESIS: To determine whether a denoised, single-average ... Full text Link to item Cite

Deep learning for classification of thyroid nodules on ultrasound: validation on an independent dataset.

Journal Article Clin Imaging · July 2023 OBJECTIVES: The purpose is to apply a previously validated deep learning algorithm to a new thyroid nodule ultrasound image dataset and compare its performances with radiologists. METHODS: Prior study presented an algorithm which is able to detect thyroid ... Full text Link to item Cite

Multistep Automated Data Labelling Procedure (MADLaP) for thyroid nodules on ultrasound: An artificial intelligence approach for automating image annotation.

Journal Article Artif Intell Med · July 2023 Machine learning (ML) for diagnosis of thyroid nodules on ultrasound is an active area of research. However, ML tools require large, well-labeled datasets, the curation of which is time-consuming and labor-intensive. The purpose of our study was to develop ... Full text Link to item Cite

Dual-Energy CT Evaluation of Gastrointestinal Bleeding.

Journal Article Radiographics · June 2023 Gastrointestinal (GI) bleeding is a potentially life-threatening condition accounting for more than 300 000 annual hospitalizations. Multidetector abdominopelvic CT angiography is commonly used in the evaluation of patients with GI bleeding. Given that man ... Full text Link to item Cite

ACR Appropriateness Criteria® Pretreatment Detection, Surveillance, and Staging of Prostate Cancer: 2022 Update.

Journal Article J Am Coll Radiol · May 2023 Prostate cancer is second leading cause of death from malignancy after lung cancer in American men. The primary goal during pretreatment evaluation of prostate cancer is disease detection, localization, establishing disease extent (both local and distant), ... Full text Link to item Cite

ACR Appropriateness Criteria® Post-Treatment Follow-up of Prostate Cancer: 2022 Update.

Journal Article J Am Coll Radiol · May 2023 Prostate cancer has a wide spectrum ranging between low-grade localized disease and castrate-resistant metastatic disease. Although whole gland and systematic therapies result in cure in the majority of patients, recurrent and metastatic prostate cancer ca ... Full text Link to item Cite

Comparing Survival Outcomes of Patients With LI-RADS-M Hepatocellular Carcinomas and Intrahepatic Cholangiocarcinomas.

Journal Article Journal of magnetic resonance imaging : JMRI · January 2023 BackgroundThere is a sparsity of data evaluating outcomes of patients with Liver Imaging Reporting and Data System (LI-RADS) (LR)-M lesions.PurposeTo compare overall survival (OS) and progression free survival (PFS) between hepatocellular ... Full text Cite

Association and Trends in Medicare Denials and Utilization for Brain CT: Indirect Impacts by Targeted Policy Intervention?

Journal Article Curr Probl Diagn Radiol · 2023 Twenty-five years of annual Medicare Physician/Supplier Procedure Summary (PSPS) Master File data were used to assess trends in normalized volume and claim denial rates for brain computerized tomography. Alongside growth in utilization of brain computerize ... Full text Open Access Link to item Cite

Clinical and imaging predictors of the natural course of bland portal vein thrombus in cirrhotic patients.

Journal Article Abdom Radiol (NY) · November 2022 BACKGROUND: Portal vein thrombus (PVT) in cirrhotic patients is associated with worsening portal hypertension, leads to increased complexity of necessary interventions such as transjugular liver portosystemic shunt or liver transplantation, and is associat ... Full text Link to item Cite

Impact of Reference Standard on CT, MRI, and Contrast-enhanced US LI-RADS Diagnosis of Hepatocellular Carcinoma: A Meta-Analysis.

Journal Article Radiology · June 2022 See also the editorial by Ronot in this issue. Online supplemental material is available for this article. ... Full text Link to item Cite

Multiinstitutional Evaluation of the Liver Surface Nodularity Score on CT for Staging Liver Fibrosis and Predicting Liver-Related Events in Patients With Hepatitis C.

Journal Article AJR Am J Roentgenol · May 2022 BACKGROUND. In single-institution multireader studies, the liver surface nodularity (LSN) score accurately detects advanced liver fibrosis and cirrhosis and predicts liver decompensation in patients with chronic liver disease (CLD) from hepatitis C virus ( ... Full text Link to item Cite

ACR Appropriateness Criteria® Staging and Surveillance of Testicular Cancer: 2021 Update.

Journal Article J Am Coll Radiol · May 2022 The staging and surveillance of testicular cancer is a complex topic, which integrates clinical, biochemical, and imaging components. The use of imaging for staging and surveillance of testicular cancer is individually tailored to each patient by consideri ... Full text Link to item Cite

3D Pyramid Pooling Network for Abdominal MRI Series Classification.

Journal Article IEEE Trans Pattern Anal Mach Intell · April 2022 Recognizing and organizing different series in an MRI examination is important both for clinical review and research, but it is poorly addressed by the current generation of picture archiving and communication systems (PACSs) and post-processing workstatio ... Full text Link to item Cite

CT/MRI and CEUS LI-RADS Major Features Association with Hepatocellular Carcinoma: Individual Patient Data Meta-Analysis.

Journal Article Radiology · February 2022 Background The Liver Imaging Reporting and Data System (LI-RADS) assigns a risk category for hepatocellular carcinoma (HCC) to imaging observations. Establishing the contributions of major features can inform the diagnostic algorithm. Purpose To perform a ... Full text Link to item Cite

Management of gastrointestinal bleeding: Society of Abdominal Radiology (SAR) Institutional Survey.

Journal Article Abdom Radiol (NY) · January 2022 Despite guidelines developed to standardize the diagnosis and management of gastrointestinal (GI) bleeding, significant variability remains in recommendations and practice. The purpose of this survey was to obtain information on practice patterns for the e ... Full text Link to item Cite

Gastrointestinal Bleeding at CT Angiography and CT Enterography: Imaging Atlas and Glossary of Terms.

Journal Article Radiographics · October 2021 Gastrointestinal (GI) bleeding is a common potentially life-threatening medical condition frequently requiring multidisciplinary collaboration to reach the proper diagnosis and guide management. GI bleeding can be overt (eg, visible hemorrhage such as hema ... Full text Link to item Cite

Update on the Role of Imaging in Clinical Staging and Restaging of Renal Cell Carcinoma Based on the AJCC 8th Edition, From the AJR Special Series on Cancer Staging.

Journal Article AJR Am J Roentgenol · September 2021 This article reviews the essential role of imaging in clinical staging and restaging of renal cell carcinoma (RCC). To completely characterize and stage an indeterminate renal mass, renal CT or MRI without and with IV contrast administration is recommended ... Full text Link to item Cite

ACR Appropriateness Criteria® Post-Treatment Surveillance of Bladder Cancer: 2021 Update.

Journal Article J Am Coll Radiol · May 2021 Urothelial cancer is the second most common cancer, and cause of cancer death, related to the genitourinary tract. The goals of surveillance imaging after the treatment of urothelial cancer of the urinary bladder are to detect new or previously undetected ... Full text Link to item Cite

Automated Structured Reporting for Thyroid Ultrasound: Effect on Reporting Errors and Efficiency.

Journal Article J Am Coll Radiol · February 2021 PURPOSE: To compare the effectiveness of different reporting templates using the ACR Thyroid Imaging Reporting and Data System (TI-RADS) for thyroid ultrasound. METHODS: In this retrospective study, four radiologists implemented ACR TI-RADS while dictating ... Full text Open Access Link to item Cite

ACR Appropriateness Criteria® Recurrent Lower Urinary Tract Infections in Females.

Journal Article J Am Coll Radiol · November 2020 Urinary tract infections (UTIs) in women are common, with an overall lifetime risk over >50%. UTIs are considered recurrent when they follow complete clinical resolution of a previous UTI and are usually defined as at least three episodes of infection with ... Full text Link to item Cite

LI-RADS ancillary feature prediction of longitudinal category changes in LR-3 observations: an exploratory study.

Journal Article Abdom Radiol (NY) · October 2020 PURPOSE: To determine whether LI-RADS ancillary features predict longitudinal LR-3 observation category changes. MATERIALS AND METHODS: This exploratory, retrospective, single-center study with an independent reading center included patients who underwent ... Full text Link to item Cite

ACR Appropriateness Criteria® Post-Treatment Surveillance of Bladder Cancer.

Journal Article J Am Coll Radiol · November 2019 Urothelial cancer is the second most common cancer, and cause of cancer death, related to the genitourinary tract. The goals of surveillance imaging after the treatment of urothelial cancer of the urinary bladder are to detect new or previously undetected ... Full text Link to item Cite

ACR Appropriateness Criteria® Lower Urinary Tract Symptoms-Suspicion of Benign Prostatic Hyperplasia.

Journal Article J Am Coll Radiol · November 2019 Lower urinary tract symptoms due to benign prostatic enlargement have a high prevalence in men over 50 years of age. Diagnosis is made with a combination of focused history and physician examination and validated symptom questionnaires. Urodynamic studies ... Full text Link to item Cite

ACR Appropriateness Criteria® Penetrating Trauma-Lower Abdomen and Pelvis.

Journal Article J Am Coll Radiol · November 2019 Lower urinary tract injury is most commonly the result of blunt trauma but can also result from penetrating or iatrogenic trauma. Clinical findings in patients with a mechanism of penetrating trauma to the lower urinary tract include lacerations or punctur ... Full text Link to item Cite

Computed tomography of the acute abdomen

Journal Article Applied Radiology · November 1, 2019 Cite

Society of abdominal radiology gastrointestinal bleeding disease-focused panel consensus recommendations for CTA technical parameters in the evaluation of acute overt gastrointestinal bleeding.

Journal Article Abdom Radiol (NY) · September 2019 PURPOSE: To formulate consensus recommendations for CT angiography technical parameters used to evaluate overt gastrointestinal (GI) bleeding. METHODS: An electronic questionnaire consisting of 17 questions was sent to a panel of 16 radiologists with exper ... Full text Link to item Cite

A Simulation Paradigm for Evaluation of Subtle Liver Lesions at Pediatric CT: Performance and Confidence.

Journal Article Radiol Imaging Cancer · September 2019 PURPOSE: To create and validate a systematic observer performance platform for evaluation of simulated liver lesions at pediatric CT and to test this paradigm to measure the effect of radiation dose reduction on detection performance and reader confidence. ... Full text Link to item Cite

LI-RADS Treatment Response Algorithm: Performance and Diagnostic Accuracy.

Journal Article Radiology · July 2019 Background In 2017, the Liver Imaging Reporting and Data System (LI-RADS) included an algorithm for the assessment of hepatocellular carcinoma (HCC) treated with local-regional therapy. The aim of the algorithm was to enable standardized evaluation of trea ... Full text Link to item Cite

ACR Appropriateness Criteria® Acute Onset of Scrotal Pain-Without Trauma, Without Antecedent Mass.

Journal Article J Am Coll Radiol · May 2019 An acute scrotum is defined as testicular swelling with acute pain and can reflect multiple etiologies including epididymitis or epididymo-orchitis, torsion of the spermatic cord, or torsion of the testicular appendages. Quick and accurate diagnosis of acu ... Full text Link to item Cite

Active Surveillance Versus Nephron-Sparing Surgery for a Bosniak IIF or III Renal Cyst: A Cost-Effectiveness Analysis.

Journal Article AJR Am J Roentgenol · April 2019 OBJECTIVE: The objective of our study was to evaluate the cost-effectiveness of active surveillance (AS) versus nephron-sparing surgery (NSS) in patients with a Bosniak IIF or III renal cyst. MATERIALS AND METHODS: Markov models were developed to estimate ... Full text Link to item Cite

Can Texture Analysis Be Used to Distinguish Benign From Malignant Adrenal Nodules on Unenhanced CT, Contrast-Enhanced CT, or In-Phase and Opposed-Phase MRI?

Journal Article AJR Am J Roentgenol · March 2019 OBJECTIVE: The purpose of this study is to determine whether second-order texture analysis can be used to distinguish lipid-poor adenomas from malignant adrenal nodules on unenhanced CT, contrast-enhanced CT (CECT), and chemical-shift MRI. MATERIALS AND ME ... Full text Link to item Cite

Imaging-guided percutaneous thrombin injection for the treatment of iatrogenic femoral artery pseudoaneurysms.

Journal Article Abdom Radiol (NY) · March 2019 PURPOSE: To evaluate factors that may affect successful ultrasound-guided percutaneous thrombin injection of iatrogenic femoral artery pseudoaneurysms (PSA). MATERIALS AND METHODS: This was an IRB-approved, HIPAA-compliant retrospective study of 326 consec ... Full text Link to item Cite

Common Resident Errors When Interpreting Computed Tomography of the Abdomen and Pelvis: A Review of Types, Pitfalls, and Strategies for Improvement.

Journal Article Curr Probl Diagn Radiol · January 2019 OBJECTIVE: The purpose of this study was to identify common errors that radiology residents make when interpreting abdominopelvic (AP) computed tomography (CT) while on call, to review the typical imaging findings of these cases, and to discuss strategies ... Full text Link to item Cite

Automated Early Identification of an Excessive Air-in-Oil X-ray Tube Artifact That Mimics Acute Cerebral Infarct.

Journal Article J Comput Assist Tomogr · 2019 PURPOSE: This study aimed to develop an automated, quantitative method to increase the likelihood of identifying and preventing such air-in-oil (AIO) artifact. METHODS: A 1-dimensional radial representation of the 2-dimensional noise power spectrum (NPS) w ... Full text Link to item Cite

DIfferential Subsampling With Cartesian Ordering With Respiratory Triggering Versus Conventional Liver Acquisition With Volume Acquisition: A Multiple Reader Preference Study.

Journal Article J Comput Assist Tomogr · 2019 OBJECTIVE: The aim of this study was to compare respiratory-triggered DIfferential Subsampling with Cartesian Ordering (rtDISCO) and breath-held Liver Acquisition with Volume Acquisition (LAVA) image quality. METHODS: In this institutional review board-app ... Full text Link to item Cite

Evaluating Resident On-Call Performance: Does Volume Affect Discrepancy Rate?

Journal Article Curr Probl Diagn Radiol · November 2018 OBJECTIVE: To examinehow study volume affects discrepancy rates for on-call radiology residents. Inparticular, we studied how both total shift volume and volume at a particularpoint in time might effect performance. MATERIALS/METHODS: Weretrospectively ana ... Full text Link to item Cite

Comparison of Visualization Rates of LI-RADS Version 2014 Major Features With IV Gadobenate Dimeglumine or Gadoxetate Disodium in Patients at Risk for Hepatocellular Carcinoma.

Journal Article AJR Am J Roentgenol · June 2018 OBJECTIVE: The purpose of this study is to compare visualization rates of the major features covered by Liver Imaging Reporting and Data System (LI-RADS) version 2014 in patients at risk for hepatocellular carcinoma using either gadobenate dimeglumine or g ... Full text Link to item Cite

ACR Appropriateness Criteria® Post-treatment Follow-up Prostate Cancer.

Journal Article J Am Coll Radiol · May 2018 Diagnosis and management of prostate cancer post treatment is a large and complex problem, and care of these patients requires multidisciplinary involvement of imaging, medical, and surgical specialties. Imaging capabilities for evaluation of men with recu ... Full text Link to item Cite

ACR Appropriateness Criteria® Pretreatment Staging of Muscle-Invasive Bladder Cancer.

Journal Article J Am Coll Radiol · May 2018 Muscle-invasive bladder cancer (MIBC) has a tendency toward urothelial multifocality and is at risk for local and distant spread, most commonly to the lymph nodes, bone, lung, liver, and peritoneum. Pretreatment staging of MIBC should include imaging of th ... Full text Link to item Cite

CT Findings of Traumatic Bucket-Handle Mesenteric Injuries.

Journal Article AJR Am J Roentgenol · December 2017 OBJECTIVE: The purpose of this study is to describe a specific type of blunt traumatic mesenteric injury called a bucket-handle tear, review its varied CT appearances, and discuss the role of CT in its detection. CONCLUSION: A bucket-handle mesenteric inju ... Full text Link to item Cite

Comparative Effectiveness of Tumor Response Assessment Methods: Standard of Care Versus Computer-Assisted Response Evaluation.

Journal Article JCO Clin Cancer Inform · November 2017 PURPOSE: To compare the effectiveness of metastatic tumor response evaluation with computed tomography using computer-assisted versus manual methods. MATERIALS AND METHODS: In this institutional review board-approved, Health Insurance Portability and Accou ... Full text Link to item Cite

Characterization of Incidental Renal Mass With Dual-Energy CT: Diagnostic Accuracy of Effective Atomic Number Maps for Discriminating Nonenhancing Cysts From Enhancing Masses.

Journal Article AJR Am J Roentgenol · October 2017 OBJECTIVE: The purpose of this study was to assess the diagnostic accuracy of effective atomic number maps reconstructed from dual-energy contrast-enhanced data for discriminating between nonenhancing renal cysts and enhancing masses. MATERIALS AND METHODS ... Full text Link to item Cite

Structured reporting of CT enterography for inflammatory bowel disease: effect on key feature reporting, accuracy across training levels, and subjective assessment of disease by referring physicians.

Journal Article Abdom Radiol (NY) · September 2017 PURPOSE: To compare the content and accuracy of structured reporting (SR) versus non-structured reporting (NSR) for computed tomographic enterography (CTE) of inflammatory bowel disease (IBD). MATERIALS AND METHODS: This IRB-approved, HIPAA-compliant, retr ... Full text Link to item Cite

ACR Appropriateness Criteria® Prostate Cancer-Pretreatment Detection, Surveillance, and Staging.

Journal Article J Am Coll Radiol · May 2017 Despite the frequent statement that "most men die with prostate cancer, not of it," the reality is that prostate cancer is second only to lung cancer as a cause of death from malignancy in American men. The primary goal during baseline evaluation of prosta ... Full text Link to item Cite

ACR Appropriateness Criteria® Hematospermia.

Journal Article J Am Coll Radiol · May 2017 Most men with hematospermia or hemospermia (HS) are young (<40 years of age), presenting with transient or episodic HS without other signs or symptoms of disease. The condition is self-limiting in most cases and idiopathic in nature. When a cause can be id ... Full text Link to item Cite

Dual-energy CT workflow: multi-institutional consensus on standardization of abdominopelvic MDCT protocols.

Journal Article Abdom Radiol (NY) · March 2017 PURPOSE: To standardize workflow for dual-energy computed tomography (DECT) involving common abdominopelvic exam protocols. MATERIALS AND METHODS: 9 institutions (4 rsDECT, 1 dsDECT, 4 both) with 32 participants [average # years (range) in practice and DEC ... Full text Link to item Cite

Intravenous Gadoxetate Disodium Administration Reduces Breath-holding Capacity in the Hepatic Arterial Phase: A Multi-Center Randomized Placebo-controlled Trial.

Journal Article Radiology · February 2017 Purpose To determine, in a multicenter double-blinded placebo-controlled trial, whether maximal hepatic arterial phase breath-holding duration is affected by gadoxetate disodium administration. Materials and Methods Institutional review board approval was ... Full text Link to item Cite

Structured Reporting of Magnetic Resonance Enterography for Pediatric Crohn's Disease: Effect on Key Feature Reporting and Subjective Assessment of Disease by Referring Physicians.

Journal Article Curr Probl Diagn Radiol · 2017 PURPOSE: To objectively compare the content of structured reports (SR) vs nonstructured reports (NSR) for magnetic resonance enterography (MRE) of pediatric patients with Crohn's disease, and to evaluate referring clinicians' subjective assessment of repor ... Full text Link to item Cite

Repeatability of Computerized Tomography-Based Anthropomorphic Measurements of Frailty in Patients With Pulmonary Fibrosis Undergoing Lung Transplantation.

Journal Article Curr Probl Diagn Radiol · 2017 PURPOSE: To determine interreader and intrareader repeatability and correlations among measurements of computerized tomography-based anthropomorphic measurements in patients with pulmonary fibrosis undergoing lung transplantation. METHODS: This was an inst ... Full text Link to item Cite

Effect of a Low-Rank Denoising Algorithm on Quantitative Magnetic Resonance Imaging-Based Measures of Liver Fat and Iron.

Journal Article J Comput Assist Tomogr · 2017 PURPOSE: This study aimed to assess the effect of a low-rank denoising algorithm on quantitative magnetic resonance imaging-based measures of liver fat and iron. MATERIALS AND METHODS: This was an institutional review board-approved, Health Insurance Porta ... Full text Link to item Cite

ACR Appropriateness Criteria Staging of Testicular Malignancy.

Journal Article J Am Coll Radiol · October 2016 Testicular cancer represents only 1% of all malignancies occurring in men. However, it is the most frequent malignancy in men between the ages of 20 and 34 years, accounting for 10% to 14% of cancer incidence in that age group. In most instances, the diagn ... Full text Link to item Cite

Diagnostic performance of MDCT in identifying closed loop small bowel obstruction.

Journal Article Abdom Radiol (NY) · July 2016 PURPOSE: To assess the diagnostic performance of MDCT in the diagnosis of closed loop small bowel obstruction. MATERIALS AND METHODS: One hundred fifty patients with CT reports including "small bowel obstruction (SBO)" between 1/30/2011 and 12/4/2012 were ... Full text Link to item Cite

Effect of Direct Marketing for Uterine Artery Embolization on Rates of Leiomyomas, Incidental Findings, and Management After Pelvic MRI.

Journal Article J Am Coll Radiol · July 2016 PURPOSE: The aim of this study was to determine whether a self-referred population screened by an interventional radiology (IR) clinic and a non-IR, physician-referred population differed with regard to suitability for uterine artery embolization (UAE) for ... Full text Link to item Cite

How reader perception of capsule affects interpretation of washout in hypervascular liver nodules in patients at risk for hepatocellular carcinoma.

Journal Article J Magn Reson Imaging · June 2016 PURPOSE: To determine whether reader perception of a capsule affects reader interpretation of washout in hypervascular liver nodules at dynamic magnetic resonance imaging (MRI) in patients at risk for hepatocellular carcinoma (HCC). MATERIALS AND METHODS: ... Full text Link to item Cite

Effect of radiologists' experience with an adaptive statistical iterative reconstruction algorithm on detection of hypervascular liver lesions and perception of image quality.

Journal Article Abdom Imaging · October 2015 PURPOSE: To prospectively evaluate whether clinical experience with an adaptive statistical iterative reconstruction algorithm (ASiR) has an effect on radiologists' diagnostic performance and confidence for the diagnosis of hypervascular liver tumors, as w ... Full text Link to item Cite

Adrenal Imaging and Intervention.

Journal Article Radiol Clin North Am · September 2015 The adrenal glands are a common site for primary benign and malignant tumors and metastatic disease. Computed tomography (CT), MR imaging, and fluorine-18 fluorodeoxyglucose PET combined with CT are the most common imaging modalities used to assess the adr ... Full text Link to item Cite

Outcomes and complications related to the management of Bosniak cystic renal lesions.

Journal Article AJR Am J Roentgenol · May 2015 OBJECTIVE: The objective of our study was to evaluate outcomes and complications related to the management of Bosniak category IIF, III, and IV renal cysts. MATERIALS AND METHODS: For this multiinstitutional retrospective study, a Web-based Research Electr ... Full text Link to item Cite

Gastroduodenal ulcers on CT: forgotten, but not gone.

Journal Article Abdom Imaging · January 2015 OBJECTIVE: To estimate the incidence of missed gastroduodenal ulcers on routine abdominal computed tomography (CT) and identify findings and methods to improve sensitivity of CT interpretation for peptic ulcers. MATERIALS AND METHODS: This is a retrospecti ... Full text Link to item Cite

From esophagus to rectum: a comprehensive review of alimentary tract perforations at computed tomography.

Journal Article Abdom Imaging · August 2014 Gastrointestinal (GI) tract perforation is a life-threatening condition that can occur at any site along the alimentary tract. Early perforation detection and intervention significantly improves patient outcome. With a high sensitivity for pneumoperitoneum ... Full text Link to item Cite

MR enterography for assessment and management of small bowel Crohn disease.

Journal Article Radiol Clin North Am · July 2014 Magnetic resonance enterography (MRE) utilization has increased for the evaluation of small bowel diseases over the last several years. In addition to performing similarly to computed tomography enterography (CTE) in the evaluation of inflammatory bowel di ... Full text Link to item Cite

Practical approach to MRI of female pelvic masses.

Journal Article AJR. American journal of roentgenology · June 2014 ObjectiveFemale pelvic masses have a broad differential diagnosis, including benign and malignant neoplasms and nonneoplastic entities.ConclusionBy using a systematic approach to the evaluation of a complex pelvic mass, including incorpor ... Full text Cite

Characterizing solid renal neoplasms with MRI in adults.

Journal Article Abdom Imaging · April 2014 Until recently, most solid renal neoplasms without macroscopic fat were presumed to represent renal cell carcinoma and were indiscriminately treated with nephrectomy. Expanding surgical options and ablative technologies, a growing acceptance of renal mass ... Full text Link to item Cite

Clinical impact of an adaptive statistical iterative reconstruction algorithm for detection of hypervascular liver tumours using a low tube voltage, high tube current MDCT technique.

Journal Article Eur Radiol · December 2013 OBJECTIVES: To investigate the impact of an adaptive statistical iterative reconstruction (ASiR) algorithm on diagnostic accuracy and confidence for the diagnosis of hypervascular liver tumours, as well as the reader's perception of image quality, using a ... Full text Link to item Cite

Placental evaluation with magnetic resonance.

Journal Article Radiol Clin North Am · November 2013 Because of the high maternal morbidity and mortality of undiagnosed placental abnormalities, there is a need for accurate antenatal diagnosis. Important placental features amenable to investigation with magnetic resonance (MR) imaging include variant place ... Full text Link to item Cite

Renal function outcomes for multifocal renal neoplasms managed by radiofrequency ablation.

Journal Article Cardiovasc Intervent Radiol · October 2013 PURPOSE: To evaluate renal function changes related to radiofrequency ablation (RFA) for the treatment of multifocal renal neoplasms. METHODS: This is an institutional review board-approved, Health Insurance Portability and Accountability Act compliant ret ... Full text Link to item Cite

Magnetic resonance imaging of solid urethral and peri-urethral lesions.

Journal Article Insights Imaging · August 2013 Solid urethral and peri-urethral lesions are rare and encompass benign and malignant aetiologies. A diagnosis without imaging is often challenging secondary to non-specific clinical symptoms and overlapping findings at the time of physical examination. Mag ... Full text Link to item Cite

Imaging-guided radiofrequency ablation of cystic renal neoplasms.

Journal Article AJR Am J Roentgenol · June 2013 OBJECTIVE: The purpose of this article is to determine whether percutaneous radiofrequency ablation (RFA) is effective and safe for the treatment of cystic renal neoplasms. MATERIALS AND METHODS: This is a retrospective review of imaging-guided RFA of Bosn ... Full text Link to item Cite

Outcomes, complications, and costs of care of Bosniak IIF, III, and IV cystic renal lesions/malignancies: Data from the largest multi-institutional study to date.

Conference Journal of Clinical Oncology · February 20, 2013 344 Background: To evaluate outcomes, complications and costs associated with management of Bosniak IIF, III, and IV cystic renal lesions/malignancies. Methods: An IRB-approved HIPAA-compliant multi-institutional retrospective da ... Full text Cite

Hepatocellular carcinoma in a North American population: does hepatobiliary MR imaging with Gd-EOB-DTPA improve sensitivity and confidence for diagnosis?

Journal Article J Magn Reson Imaging · February 2013 PURPOSE: To evaluate the value of hepatobiliary phase imaging for detection and characterization of hepatocellular carcinoma (HCC) in liver MRI with Gd-EOB-DTPA, in a North American population. MATERIALS AND METHODS: One hundred MRI examinations performed ... Full text Link to item Cite

Bone marrow enhancement during time-resolved magnetic resonance angiography of the pelvis.

Journal Article J Comput Assist Tomogr · 2013 OBJECTIVE: This study aimed to determine whether visible bone marrow enhancement (BME) at pelvic magnetic resonance angiography (MRA) correlates with anemia. METHODS: This is an institutional review board-approved, Health Insurance Portability and Accounta ... Full text Link to item Cite

Multiphase multi-detector row computed tomography in the setting of chronic liver disease and orthotopic liver transplantation: can a series be eliminated in order to reduce radiation dose?

Journal Article J Comput Assist Tomogr · 2013 OBJECTIVE: The objectives of this study were to explore utilization of multi-detector row computed tomography (MDCT) in screening for hepatocellular carcinoma (HCC) and to modify a liver CT protocol with a goal of dose reduction. METHODS: An electronic mai ... Full text Link to item Cite

Case 187: De Garengeot hernia.

Journal Article Radiology · November 2012 Full text Link to item Cite

Case 187

Journal Article Radiology · July 1, 2012 Full text Cite

Diagnostic accuracy of intra-abdominal fluid collection characterization in the era of multidetector computed tomography.

Journal Article Am Surg · February 2012 The purpose of this study was to test the hypothesis that with improved technology, the presence of abscess in a postoperative fluid collection may be prospectively made. This is an Institutional Review Board-approved, Health Insurance Portability and Acco ... Link to item Cite

Bosniak category IIF and III cystic renal lesions: outcomes and associations.

Journal Article Radiology · January 2012 PURPOSE: To evaluate clinical outcomes, pathologic subtypes, metastatic disease rate, and clinical features associated with malignancy in Bosniak category IIF and III cystic renal lesions. MATERIALS AND METHODS: This retrospective study was institutional r ... Full text Link to item Cite

Metastatic melanoma to the heart.

Journal Article Curr Probl Diagn Radiol · 2012 Melanoma is a common neoplasm with a propensity to metastasize to the heart. Although cardiac metastasis is rarely diagnosed ante mortem, using a multimodality approach, several imaging findings may be seen. Echocardiography is often the initial imaging me ... Full text Link to item Cite

Effect of altering automatic exposure control settings and quality reference mAs on radiation dose, image quality, and diagnostic efficacy in MDCT enterography of active inflammatory Crohn's disease.

Journal Article AJR Am J Roentgenol · July 2010 OBJECTIVE: The purpose of our study was to determine whether the MDCT enterography dose can be reduced by changing automatic exposure control (AEC) setting and quality reference milliampere-seconds (mAs) without altering subjective image quality or efficac ... Full text Link to item Cite

Percutaneous cryoablation of renal tumors: patient selection, technique, and postprocedural imaging.

Journal Article Radiographics · 2010 Percutaneous cryoablation of renal tumors requires a number of important steps for success and relies heavily on imaging for treatment planning, intraprocedural guidance and monitoring, detection of untreated tumor, and surveillance for disease progression ... Full text Link to item Cite

Methylmethacrylate pulmonary emboli: radiographic and computed tomographic findings.

Journal Article J Thorac Imaging · August 2009 One of the most serious potential complications of vertebroplasty or kyphoplasty is the embolization of methylmethacrylate cement into the pulmonary arteries. We present an overview of the subject and a pictorial review the spectrum of radiographic and com ... Full text Link to item Cite

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Journal Article Cleveland Clinic Journal of Medicine · April 1, 2009 Full text Cite

Role of barium esophagography in evaluating dysphagia.

Journal Article Cleve Clin J Med · February 2009 Patients with dysphagia can initially undergo either endoscopic or radiologic evaluation, depending on the clinical history and physician preference. We usually recommend that most patients with dysphagia initially undergo barium esophagography, and in thi ... Full text Link to item Cite

Rib fracture stabilization in patients sustaining blunt chest injury.

Journal Article Am Surg · April 2006 Conservative management for the majority of patients with severe chest injuries has produced a reduction in mortality, complications, and hospital length of stay. More recently, operative stabilization of rib fractures has been used with the implication of ... Full text Link to item Cite

Complications associated with isotretinoin use after rhinoplasty.

Journal Article Aesthetic Plast Surg · 2005 BACKGROUND: This study aimed to evaluate the association between the postoperative use of isotretinoin and the formation of nasal tip deformities after rhinoplasty. METHODS: A retrospective study investigated a case series of patients who presented with na ... Full text Link to item Cite

Correlation of intracellular organisms with quantitative endotracheal aspirate.

Journal Article J Trauma · January 2003 BACKGROUND: The presence of intracellular organisms (ICOs) in polymorphonuclear cells obtained from respiratory secretions is a possible method for rapid diagnosis of ventilator-associated pneumonia. We correlated ICOs with quantitative endotracheal aspira ... Full text Link to item Cite