A5032242070- Radiation Dose and Imaging
- Advanced X-ray and CT Imaging
- Radiology practices and education
- Digital Radiography and Breast Imaging
- Global Cancer Incidence and Screening
- Medical Imaging Techniques and Applications
- Radiomics and Machine Learning in Medical Imaging
- Breast Cancer Treatment Studies
- Ultrasound in Clinical Applications
- Effects of Radiation Exposure
- Radioactivity and Radon Measurements
- Higher Education Learning Practices
- Educational and Psychological Assessments
- Student Assessment and Feedback
- Graphite, nuclear technology, radiation studies
- Advances in Oncology and Radiotherapy
- Ultrasound Imaging and Elastography
- Education Systems and Policy
- Scoliosis diagnosis and treatment
- Empathy and Medical Education
- Antifungal resistance and susceptibility
- Management of metastatic bone disease
- Radioactive Decay and Measurement Techniques
- Head and Neck Surgical Oncology
- Breast Implant and Reconstruction
American College of Radiology
2010-2021
Mayo Clinic in Arizona
2021
Duke University Hospital
2021
University of Washington
2021
Mayo Clinic in Florida
2017
Duke Medical Center
2013
Washington University Medical Center
1990-2011
George Washington University
1990-2011
George Washington University Hospital
1986
Uniformed Services University of the Health Sciences
1984
Purpose To develop diagnostic reference levels (DRLs) and achievable doses (ADs) for the 10 most common adult computed tomographic (CT) examinations in United States as a function of patient size by using CT Dose Index Registry. Materials Methods Data from commonly performed head, neck, body 583 facilities were analyzed. For head examinations, lateral thickness was used an indicator size; neck water-equivalent diameter used. 1 310 727 (analyzed SAS 9.3) provided median values, well means...
AJR:194, April 2010 This article suggests 10 steps that radiologists and radiologic technologists, with the assistance of their medical physicist, can take to obtain good quality CT images while properly managing radiation dose for children undergoing CT. The first six ideally should be completed before performing any on a pediatric patient. final four address unique consideration given each scanned
Reference values (RVs) are recommended by the American Association of Physicists in Medicine for four radiographic projections, computed tomography, fluoroscopy, and dental radiography. RVs used to compare radiation doses from individual pieces equipment with similar assessed national surveys. have been developed Nationwide Evaluation X-ray Trends survey performed state protection agencies cooperation support U.S. Food Drug Administration, Conference Radiation Control Program Directors,...
Background Diagnostic reference levels (DRLs) and achievable doses (ADs) were developed for the 10 most commonly performed pediatric CT examinations in United States using American College of Radiology Dose Index Registry. Purpose To develop robust, current, national DRLs ADs as a function patient age size. Materials Methods Data on (ie, patients aged 18 years younger) between 2016 2020 at 1625 facilities analyzed. For head neck examinations, dose indexes analyzed based age; body effective...
Medical physicists currently use two standardized phantoms to estimate CT patient radiation dose. This "one-size-fits-all" adult model results in underestimates of displayed pediatric dose on the console current scanners. The purpose this article is discuss Alliance for Radiation Safety Pediatric Imaging Vendor Summit.Stakeholders were invited development better estimates These stakeholders agreed partner improve children.
Radiation awareness and protection of patients have been the fundamental responsibilities in diagnostic imaging since discovery x-rays late 1895 first reports radiation injury 1896. In ensuing years, there significant advancements equipment that uses either to form images, such as fluoroscopy or computed tomography (CT), types emitted during nuclear procedures (e.g., positron emission [PET]). These allowed detailed indispensable evaluation a vast array disorders. fact, 2001, CT MRI were...
We report on the reproducibility of human observers' vanishing detection thresholds for visual targets in contrast–detail (C/D) analysis ultrasound B‐mode images. The images used this study contain which are circular cross sections constant‐contrast conical structures C/D phantom. threshold diameters these vary as a function perceived size imaged target, target‐to‐background contrast, image noise content, and decision levels observers repeated observations. Our indicates that determination...
In diagnostic radiology, the routine measurement of exposure levels for a reference patient is an important part effective quality assurance program. United States, chest radiography most frequent examination and has lowest level all radiologic examinations. We estimated amount average received from both manual automatic exposure-controlled radiographic techniques by using "patient-equivalent" phantom during measurements. A densitometric procedure was used to assess processor performance....
Existing surveys of radiopharmaceutical doses for U.S. nuclear medicine laboratories are limited scope and size. Dose data important because they can be used to benchmark individual laboratories, understand geographic variations in practice, provide source societal guidelines appropriateness criteria. Diagnostic reference levels (DRLs) achievable administered activities (AAAs) 13 noncardiac adult gamma camera PET/CT examinations were derived retrospectively from American College Radiology...
Results of the Breast Exposure: Nationwide Trends (BENT) study are presented. In this study, data were collected from 42 states and several other jurisdictions number facilities found to have unusually high or low exposures during mammography was determined. Surveyors trained by representatives Bureau Radiological Health then worked with these determine source problem recommend corrective measures. Contrast be reduced "inherent" filtration, kVp, inappropriate imaging conditions, while...