Priscilla Butler

CT
8 strategies to optimize radiation dose in CT
How can imaging providers optimize CT dose to maximize the risk-benefit ratio and deliver better patient care? In this article, Priscilla Butler from the American College of Radiology offers eight actionable strategies for managing radiation dose while still providing diagnostic quality and accuracy.
July 13, 2017
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Top Stories
Dexa
Digital X-Ray
Bone health declines over time in adolescents with diabetes
Skeletal health remains under-recognized, under-evaluated, and rarely followed longitudinally in adolescents with type 1 diabetes.
Preschoolers
Digital X-Ray
Are chest x-rays useful in children with recurrent wheezing?
Prostate Imaging
Nuclear Medicine
Lutetium-177 PSMA-617 shows promise in earlier-stage prostate cancer
Mri Brain Head 400
MRI
MRI reveals links between brain aging, neuro disorders
Lung Cancer
CT
LDCT screening criteria miss majority of Korean lung cancer patients
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Dexa
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Preschoolers
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Mri Brain Head 400
LDCT screening criteria miss majority of Korean lung cancer patients
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Acute pulmonary embolism (PE) with right ventricle (RV) enlargement and clot-in-transit. PE chest axial CT angiography images demonstrate pulmonary embolus in the right pulmonary artery (white solid arrow), an enlarged RV (dotted arrow), and thrombus transiting through the right atrium (black arrows), PE-RADS 4/RV+/T+. The “4” refers to the PE‑RADS ordinal category for the most proximal clot location (central arteries). “RV+” indicates RV enlargement (RV to left ventricle ratio ≥ 1.0). “T+” indicates definitive thrombus identified in the right atrium and/or RV.
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Adobe Stock 517622853
Tau PET tracer flags early Alzheimer risk in healthy older adults
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F-18 PI-2620 average binding potential maps. Mean tracer binding (DVR) image from 165 older adults (A) and 13 young adults (B). Images are scaled from 1 to 1.8 for display purposes, but DVR values of less than 1 were frequently observed.
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Top eight incorrectly classified synthetic images (Most convincing fake images). Images A, B, C, D, E, F, G and H were the most infrequently correctly classified images at 24%, 43%, 59%, 64%, 69%, 71%, 71% and 73% respectively. All images are AI-generated. Images A, B and C are head CTs. Images D and E are chest CTs. Image F is a cardiac CT. Image G is a musculoskeletal MRI. Image H is a head MRI. Images are republished under a Creative Commons license (CC BY 4.0).
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Minnie Cast Thumbnail (15)
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Annual and cumulative FDA authorizations of AI/ML-enabled medical devices, 1995–2025.
Petition seeks to increase number of attempts for taking ARRT exam
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Student Doctor Laptop Test 400 (1)
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