Radiometry

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  Subject Areas on Research

  • 3D element imaging using NSECT for the detection of renal cancer: a simulation study in MCNP. 
  • A "rolling average" multiple adaptive planning method to compensate for target volume changes in image-guided radiotherapy of prostate cancer. 
  • A Monte Carlo based method to estimate radiation dose from multidetector CT (MDCT): cylindrical and anthropomorphic phantoms. 
  • A Monte Carlo simulation framework for electron beam dose calculations using Varian phase space files for TrueBeam Linacs. 
  • A comparison of coplanar four-field techniques for conformal radiotherapy of the prostate. 
  • A comprehensive evaluation of the PRESAGE/optical-CT 3D dosimetry system. 
  • A comprehensive investigation of the accuracy and reproducibility of a multitarget single isocenter VMAT radiosurgery technique. 
  • A computer simulated phantom study of tomotherapy dose optimization based on probability density functions (PDF) and potential errors caused by low reproducibility of PDF. 
  • A descriptive analysis of postimplant dosimetric parameters from Radiation Therapy Oncology Group P0019. 
  • A dose calculation method including scatter for IMRT optimization. 
  • A dose-volume-based tool for evaluating and ranking IMRT treatment plans. 
  • A method to correct for spectral artifacts in optical-CT dosimetry. 
  • A method to correct for stray light in telecentric optical-CT imaging of radiochromic dosimeters. 
  • A method to dynamically balance intensity modulated radiotherapy dose between organs-at-risk. 
  • A new container geometry for better sensitivity in radiometric measurements. 
  • A novel needle-based miniature x-ray generating system. 
  • A novel silicon array designed for intraoperative charged particle imaging. 
  • A practical three-dimensional dosimetry system for radiation therapy. 
  • A quality assurance method that utilizes 3D dosimetry and facilitates clinical interpretation. 
  • A radiometric assay for kynurenine 3-hydroxylase based on the release of 3H2O during hydroxylation of L-[3,5-3H]kynurenine. 
  • A round-robin gamma stereotactic radiosurgery dosimetry interinstitution comparison of calibration protocols. 
  • A study of smart card for radiation exposure history of patient. 
  • A technique of intensity-modulated radiosurgery (IMRS) for spinal tumors. 
  • A translatable predictor of human radiation exposure. 
  • AI-guided parameter optimization in inverse treatment planning. 
  • Accuracy of effective dose estimation in personal dosimetry: a comparison between single-badge and double-badge methods and the MOSFET method. 
  • Accuracy of inhomogeneity correction in photon radiotherapy from CT scans with different settings. 
  • Active Breathing Coordinator reduces radiation dose to the heart and preserves local control in patients with left breast cancer: report of a prospective trial. 
  • Adult abdomen-pelvis CT: Does equilibrium dose-pitch product better account for the kVp dependence of organ dose than conventional CTDI? 
  • Air kerma based dosimetry calibration for the Leksell Gamma Knife. 
  • Algorithm and performance of a clinical IMRT beam-angle optimization system. 
  • An investigation of a PRESAGE® in vivo dosimeter for brachytherapy. 
  • An investigation of the accuracy of an IMRT dose distribution using two- and three-dimensional dosimetry techniques. 
  • Apparatus-dependent dosimetric differences in spine stereotactic body radiotherapy. 
  • Application of Gafchromic film in the dosimetry of an intravascular brachytherapy source. 
  • Application of MOSFET detectors for dosimetry in small animal radiography using short exposure times. 
  • Application of dose compensation in image-guided radiotherapy of prostate cancer. 
  • Are We Ready for a Radiological Terrorist Attack Yet? Report From the Centers for Medical Countermeasures Against Radiation Network. 
  • Assessment of individual organ doses in a realistic human phantom from neutron and gamma stimulated spectroscopy of the breast and liver. 
  • Body CT: technical advances for improving safety. 
  • Breast cancer detection using neutron stimulated emission computed tomography: prominent elements and dose requirements. 
  • CT fluoroscopy--guided interventional procedures: techniques and radiation dose to radiologists. 
  • CT imaging in a large part of the world: what we know and what we can learn. 
  • CT-guided lumbar nerve root injections: are we using the correct radiation dose settings? 
  • Calculation and prediction of the effect of respiratory motion on whole breast radiation therapy dose distributions. 
  • Characterization of a 137Cs irradiator from a new perspective with modern dosimetric tools. 
  • Characterization of a new radiochromic three-dimensional dosimeter. 
  • Characterization of the ADII-33 diamond detector. 
  • Clinical assessment and characterization of a dual tube kilovoltage X-ray localization system in the radiotherapy treatment room. 
  • Clinical implementation of AAPM TG61 protocol for kilovoltage x-ray beam dosimetry. 
  • Combining scatter reduction and correction to improve image quality in cone-beam computed tomography (CBCT). 
  • Commissioning a CT-compatible LDR tandem and ovoid applicator using Monte Carlo calculation and 3D dosimetry. 
  • Commissioning a small-field biological irradiator using point, 2D, and 3D dosimetry techniques. 
  • Commissioning and benchmarking a 3D dosimetry system for clinical use. 
  • Commissioning and dosimetric characteristics of TrueBeam system: composite data of three TrueBeam machines. 
  • Comparative evaluation of Oxoid Signal and BACTEC radiometric blood culture systems for the detection of bacteremia and fungemia. 
  • Comparison of radiation dose estimates, image noise, and scan duration in pediatric body imaging for volumetric and helical modes on 320-detector CT and helical mode on 64-detector CT. 
  • Computed tomography dose index and dose length product for cone-beam CT: Monte Carlo simulations. 
  • Controlled evaluation of modified radiometric blood culture medium supplemented with gelatin for detection of bacteremia and fungemia. 
  • Conventional and CT angiography in children: dosimetry and dose comparisons. 
  • Cost-effective diffuse reflectance spectroscopy device for quantifying tissue absorption and scattering in vivo. 
  • Current density distributions, field distributions and impedance analysis of segmented deep brain stimulation electrodes. 
  • Dose sculpting with generalized equivalent uniform dose. 
  • Dosimetric analysis of the alopecia preventing effect of hippocampus sparing whole brain radiation therapy. 
  • Dosimetric and geometric evaluation of a hybrid strategy of offline adaptive planning and online image guidance for prostate cancer radiotherapy. 
  • Dosimetric assessment of rigid setup error by CBCT for HN-IMRT. 
  • Dosimetric characterisation of bismuth shields in CT: measurements and Monte Carlo simulations. 
  • Dosimetric characteristics of Novalis shaped beam surgery unit. 
  • Dosimetric characteristics of novalis Tx system with high definition multileaf collimator. 
  • Dosimetric comparison of treatment plans based on free breathing, maximum, and average intensity projection CTs for lung cancer SBRT. 
  • Dosimetric feasibility of cone-beam CT-based treatment planning compared to CT-based treatment planning. 
  • Dosimetric quantifiers for low-dose-rate prostate brachytherapy: is V(100) superior to D(90)? 
  • Dosimetric study using different leaf-width MLCs for treatment planning of dynamic conformal arcs and intensity-modulated radiosurgery. 
  • Dosimetric validation for multileaf collimator-based intensity-modulated radiotherapy: a review. 
  • Dosimetric verification of lung cancer treatment using the CBCTs estimated from limited-angle on-board projections. 
  • Dosimetry and radiographic analysis of 131I-labeled anti-tenascin 81C6 murine monoclonal antibody in newly diagnosed patients with malignant gliomas: a phase II study. 
  • Dosimetry tools and techniques for IMRT. 
  • Dual energy versus single energy MDCT: measurement of radiation dose using adult abdominal imaging protocols. 
  • Dual-Source Single-Energy Multidetector CT Used to Obtain Multiple Radiation Exposure Levels within the Same Patient: Phantom Development and Clinical Validation. 
  • Dynamic electron arc radiotherapy (DEAR): a feasibility study. 
  • Dynamic simulation of motion effects in IMAT lung SBRT. 
  • Dynamics of polymerization in polyacrylamide gel (PAG) dosimeters: (I) ageing and long-term stability. 
  • Early first-trimester fetal radiation dose estimation in 16-MDCT without and with automated tube current modulation. 
  • Effect of agitation and terminal subcultures on yield and speed of detection of the Oxoid Signal blood culture system versus the BACTEC radiometric system. 
  • Effect of automatic tube current modulation on radiation dose and image quality for low tube voltage multidetector row CT angiography: phantom study. 
  • Effect of dose reduction on the detection of mammographic lesions: a mathematical observer model analysis. 
  • Effect of patient size on radiation dose for abdominal MDCT with automatic tube current modulation: phantom study. 
  • Effect of respiratory motion on lung counting efficiency using a 4D NURBS-based cardio-torso (NCAT) phantom. 
  • Effective dose determination using an anthropomorphic phantom and metal oxide semiconductor field effect transistor technology for clinical adult body multidetector array computed tomography protocols. 
  • Effects of protocol and obesity on dose conversion factors in adult body CT. 
  • Employee exposure to (222)Rn and (220)Rn in three fish culture stations in Pennsylvania. 
  • Enhanced quantum efficiency of the visible light photon counter in the ultraviolet wavelengths. 
  • Establishing the feasibility of the dosimetric compliance criteria of RTOG 1308: phase III randomized trial comparing overall survival after photon versus proton radiochemotherapy for inoperable stage II-IIIB NSCLC. 
  • Estimation of absorbed doses from paediatric cone-beam CT scans: MOSFET measurements and Monte Carlo simulations. 
  • Estimation of computed tomography dose index in cone beam computed tomography: MOSFET measurements and Monte Carlo simulations. 
  • Estimation of radiation exposure for brain perfusion CT: standard protocol compared with deviations in protocol. 
  • Estrogen regulation of adipose tissue lipoprotein lipase--possible mechanism of body fat distribution. 
  • Evaluation of a 2D diode array for IMRT quality assurance. 
  • Evaluation of the reproducibility of lung motion probability distribution function (PDF) using dynamic MRI. 
  • Evaluations of an adaptive planning technique incorporating dose feedback in image-guided radiotherapy of prostate cancer. 
  • Experimentally measured scatter fractions and energy spectra as a test of Monte Carlo simulations. 
  • Eye dose assessment and management: overview. 
  • Eye dosimetry in interventional radiology and cardiology: current challenges and practical considerations. 
  • Fiber-optic detector for real time dosimetry of a micro-planar x-ray beam. 
  • Fluoroscopy procedure and equipment changes to reduce staff radiation exposure in the interventional spine suite. 
  • From active shape model to active optical flow model: a shape-based approach to predicting voxel-level dose distributions in spine SBRT. 
  • Fuzzy logic guided inverse treatment planning. 
  • High resolution gel-dosimetry by optical-CT and MR scanning. 
  • How many strikes does it take till we are out? 
  • How should we describe the radioblologic effect of extracranial stereotactic radlosurgery: equivalent uniform dose or tumor control probability? 
  • How tracking radiologic procedures and dose helps: experience from Finland. 
  • IMRT treatment of anal cancer with a scrotal shield. 
  • Ice as a water-equivalent solid medium for brachytherapy dosimetric measurements. 
  • Image quality and dose in mammography in 17 countries in Africa, Asia and Eastern Europe: results from IAEA projects. 
  • Implementation of radiochromic film dosimetry protocol for volumetric dose assessments to various organs during diagnostic CT procedures. 
  • Implementation of the ACR Dose Index Registry. 
  • Improving calibration accuracy in gel dosimetry. 
  • Increased plasma arginase activity in human sepsis: association with increased circulating neutrophils. 
  • Influence of white matter conductivity anisotropy on electric field strength induced by electroconvulsive therapy. 
  • Intensity-modulated radiotherapy optimization with gEUD-guided dose-volume objectives. 
  • Investigating end-to-end accuracy of image guided radiation treatment delivery using a micro-irradiator. 
  • Investigating the accuracy of microstereotactic-body-radiotherapy utilizing anatomically accurate 3D printed rodent-morphic dosimeters. 
  • Investigation into the feasibility of using PRESAGE/optical-CT dosimetry for the verification of gating treatments. 
  • Investigation of the feasibility of relative 3D dosimetry in the Radiologic Physics Center Head and Neck IMRT phantom using presage/optical-CT. 
  • Investigations into the feasibility of optical-CT 3D dosimetry with minimal use of refractively matched fluids. 
  • Isodose curve mappings measured while undergoing rotation for quality assurance testing of a 137Cs irradiator. 
  • Kerma area product method for effective dose estimation during lumbar epidural steroid injection procedures: phantom study. 
  • Lipid metabolism in hypervitaminosis A. 
  • Locating radiation hazards and sources within contaminated areas by implementing a reverse ray tracing technique in the RadBall™ technology. 
  • Looking into future: challenges in radiation protection in medicine. 
  • MOSFET dosimetry for radiation dose assessment of bismuth shielding of the eye in children. 
  • Measurement of scatter fractions in clinical bedside radiography. 
  • Medical malpractice and prostate brachytherapy. 
  • Methods for transferring patient and plan data between radiotherapy treatment planning systems. 
  • Microdosimetric analysis of alpha-particle-emitting targeted radiotherapeutics using histological images. 
  • Multi-national findings on radiation protection of children. 
  • Neutron stimulated emission computed tomography: a Monte Carlo simulation approach. 
  • Noise in polymer gel measurements using MRI. 
  • Non-human to human organ transplantation: its biologic basis and a potential role for radiation therapy. 
  • Novalis radiosurgery for metastatic spine tumors. 
  • Novel human IgG2b/murine chimeric antitenascin monoclonal antibody construct radiolabeled with 131I and administered into the surgically created resection cavity of patients with malignant glioma: phase I trial results. 
  • Nuclear medicine exposure in the United States, 2005-2007: preliminary results. 
  • On relating the generalized equivalent uniform dose formalism to the linear-quadratic model. 
  • On the feasibility of comprehensive high-resolution 3D remote dosimetry. 
  • On the feasibility of optical-CT imaging in media of different refractive index. 
  • On the feasibility of polyurethane based 3D dosimeters with optical CT for dosimetric verification of low energy photon brachytherapy seeds. 
  • On the sensitivity of TG-119 and IROC credentialing to TPS commissioning errors. 
  • On the sensitivity of TG-119 and IROC credentialing to TPS commissioning errors. 
  • On-line re-optimization of prostate IMRT plans for adaptive radiation therapy. 
  • Optical-CT 3D Dosimetry Using Fresnel Lenses with Minimal Refractive-Index Matching Fluid. 
  • Optical-CT gel-dosimetry I: basic investigations. 
  • Optical-CT gel-dosimetry. II: Optical artifacts and geometrical distortion. 
  • Optimization of a 90Sr/90Y radiation source train stepping for intravascular brachytherapy. 
  • Optimization of inverse treatment planning using a fuzzy weight function. 
  • Optimized MR imaging for polyacrylamide gel dosimetry. 
  • Organ localization: toward prospective patient-specific organ dosimetry in computed tomography. 
  • Organ-based dose current modulation and thyroid shields: techniques of radiation dose reduction for neck CT. 
  • Our responsibility for medical radiation dose determinations. 
  • Overview of CT technologies for children. 
  • Paediatric CT examinations in 19 developing countries: frequency and radiation dose. 
  • Patient doses in CT examinations in 18 countries: initial results from International Atomic Energy Agency projects. 
  • Patient doses in radiographic examinations in 12 countries in Asia, Africa, and Eastern Europe: initial results from IAEA projects. 
  • Patient-specific dose estimation for pediatric chest CT. 
  • Pediatric CT: practical approach to diminish the radiation dose. 
  • Pediatric cardiac-gated CT angiography: assessment of radiation dose. 
  • Pharmacokinetics and radiation dosimetry of 18F-fluorocholine. 
  • Phase-1 clinical trial results of high-specific-activity carrier-free 123I-iobenguane. 
  • Physical characterization of a prototype selenium-based full field digital mammography detector. 
  • Physics and imaging for targeting of oligometastases. 
  • Polymer gel dosimetry. 
  • Positively charged templates for labeling internalizing antibodies: comparison of N-succinimidyl 5-iodo-3-pyridinecarboxylate and the D-amino acid peptide KRYRR. 
  • Quality assurance for online adapted treatment plans: benchmarking and delivery monitoring simulation. 
  • Quantification of prostate and seminal vesicle interfraction variation during IMRT. 
  • Quantifying the effect of intrafraction motion during breast IMRT planning and dose delivery. 
  • Quantitation of 211At in small volumes for evaluation of targeted radiotherapy in animal models. 
  • Quantitative comparison of automatic and manual IMRT optimization for prostate cancer: the benefits of DVH prediction. 
  • Radiation Dosimetry for Ureteroscopy Patients: A Phantom Study Comparing the Standard and Obese Patient Models. 
  • Radiation and cataract. 
  • Radiation dose for routine clinical adult brain CT: Variability on different scanners at one institution. 
  • Radiation dose from cone beam CT in a pediatric phantom: risk estimation of cancer incidence. 
  • Radiation dose to the fetus from body MDCT during early gestation. 
  • Radiation doses from small-bowel follow-through and abdomen/pelvis MDCT in pediatric Crohn disease. 
  • Radiation doses from small-bowel follow-through and abdominopelvic MDCT in Crohn's disease. 
  • Radiation dosimetry in digital breast tomosynthesis: report of AAPM Tomosynthesis Subcommittee Task Group 223. 
  • Radiation dosimetry using polymer gels: methods and applications. 
  • Radiation dosimetry using three-dimensional optical random access memories. 
  • Radiation protection in newer imaging technologies. 
  • Radiation protection of patients in diagnostic radiology: status of practice in five Eastern-European countries, based on IAEA project. 
  • Radiation safety in the cardiac catheterization laboratory. 
  • Radiation synovectomy with 165Dy-FHMA: lymph node uptake and radiation dosimetry calculations. 
  • Radiation-associated lens opacities in catheterization personnel: results of a survey and direct assessments. 
  • Radioactive sources embedded in suture are associated with improved postimplant dosimetry in men treated with prostate brachytherapy. 
  • Radiolabeling and in vitro evaluation of (67)Ga-NOTA-modular nanotransporter--a potential Auger electron emitting EGFR-targeted radiotherapeutic. 
  • Radiological protection in computed tomography and cone beam computed tomography. 
  • Radionuclide quantitation of lung function in patients with pulmonary disorders. 
  • Radon dosimetry based on the depth distribution of nuclei in human and rat lungs. 
  • Rapid determination of oxygen saturation and vascularity for cancer detection. 
  • Rapid radiometric method for pyrazinamide susceptibility testing of Mycobacterium tuberculosis. 
  • Realistic reference adult and paediatric phantom series for internal and external dosimetry. 
  • Recent and innovative methods for detection of bacteremia and fungemia. 
  • Reducing dose calculation time for accurate iterative IMRT planning. 
  • Relationship between the generalized equivalent uniform dose formulation and the Poisson statistics-based tumor control probability model. 
  • Results from the Quality Research in Radiation Oncology (QRRO) survey: Evaluation of dosimetric outcomes for low-dose-rate prostate brachytherapy. 
  • Sample size requirements for estimating effective dose from computed tomography using solid-state metal-oxide-semiconductor field-effect transistor dosimetry. 
  • Solutions to problems in dose calibrator assay of iodine-123. 
  • Specific issues in small animal dosimetry and irradiator calibration. 
  • Speed and convergence properties of gradient algorithms for optimization of IMRT. 
  • Standardized beam bouquets for lung IMRT planning. 
  • Strategies for automatic online treatment plan reoptimization using clinical treatment planning system: a planning parameters study. 
  • Strategies of dose reduction. 
  • Synthesis and evaluation of (18)F-labeled choline analogs as oncologic PET tracers. 
  • Task Group 142 report: quality assurance of medical accelerators. 
  • The effect of ambient pressure on well chamber response: Monte Carlo calculated results for the HDR 1000 plus. 
  • The effect of ambient pressure on well chamber response: experimental results with empirical correction factors. 
  • The impact of respiratory motion and treatment technique on stereotactic body radiation therapy for liver cancer. 
  • The risk of radiation-induced cerebrovascular disease in Chernobyl emergency workers. 
  • Three-Dimensional Dosimetric Validation of a Magnetic Resonance Guided Intensity Modulated Radiation Therapy System. 
  • Three-dimensional applicator system for carcinoma of the uterine cervix. 
  • Toward acquiring comprehensive radiosurgery field commissioning data using the PRESAGE/optical-CT 3D dosimetry system. 
  • Toward an organ based dose prescription method for the improved accuracy of murine dose in orthovoltage x-ray irradiators. 
  • Tracking patient radiation exposure: challenges to integrating nuclear medicine with other modalities. 
  • Treatment planning for prostate brachytherapy using region of interest adjoint functions and a greedy heuristic. 
  • Tumor resection cavity administered iodine-131-labeled antitenascin 81C6 radioimmunotherapy in patients with malignant glioma: neuropathology aspects. 
  • Two Realistic Beagle Models for Dose Assessment. 
  • Ultrasonic tracking of acoustic radiation force-induced displacements in homogeneous media. 
  • Use of genetic algorithms to optimize fiber optic probe design for the extraction of tissue optical properties. 
  • Validation of metal oxide semiconductor field effect transistor technology for organ dose assessment during CT: comparison with thermoluminescent dosimetry. 
  • Variability in Radiation Dose From Repeat Identical CT Examinations: Longitudinal Analysis of 2851 Patients Undergoing 12,635 Thoracoabdominal CT Scans in an Academic Health System. 
  • Vascular targeted endoradiotherapy of tumors using alpha-particle-emitting compounds: theoretical analysis. 
  • Verification of a novel method for tube voltage constancy measurement of orthovoltage x-ray irradiators. 
  • Volumetric quantification of lung nodules in CT with iterative reconstruction (ASiR and MBIR). 
  • Volumetric-modulated arc therapy: effective and efficient end-to-end patient-specific quality assurance. 
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  Keywords of People

  • Chen, Jun, Associate Professor of Medicine, Duke Cancer Institute
  • Colsher, James George, Adjunct Assistant Professor in the Department of Radiology, Radiology, Nuclear Medicine
  • Craciunescu, Oana, Associate Professor of Radiation Oncology, Radiation Oncology
  • Lee, Walter T, Associate Professor of Surgery, Radiation Oncology
  • Palmer, Gregory M., Associate Professor of Radiation Oncology, Radiation Oncology
  • Sampson, John Howard, Robert H., M.D. and Gloria Wilkins Professor of Neurosurgery, in the School of Medicine, Immunology