Dr. Peter B. Dean

Breast
Mammography's alleged harms: Separating fact from fiction
Screening mammography is a tool that has been proved to reduce breast cancer death rates, but its effectiveness continues to be disputed by researchers, some of whom have resorted to guesswork to buttress their arguments, according to an opinion piece by mammography experts Dr. László Tabár and Dr. Peter B. Dean.
December 12, 2012
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Individualized parametric z-score maps of the brain showing glial activity load in the brain, compared among individuals with secondary progressive MS (SPMS) (top row), relapsing-remitting MS (RRMS) (middle row), and a healthy control (HC) (bottom row) in transaxial, sagittal, and coronal sections. Image courtesy of Clinical Nuclear Medicine.
Molecular Imaging
PET reveals ‘smoldering’ brain inflammation in patients treated for MS
PET brain scans show persistent brain inflammation in patients with multiple sclerosis (MS), despite being treated with therapies.
2024 04 25 Radio Graphics Robb Figure7 Thumbnail
CT
Understanding CT flow artifacts is key to better disease diagnosis
Liver Cancer
Molecular Imaging
Dual-tracer PET/CT shows promise in liver cancer patients
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Womens Imaging
Studies lacking for trans breast cancer screening trends
IMV’s Oncology in Diagnostic Imaging Market Outlook Report
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PET reveals ‘smoldering’ brain inflammation in patients treated for MS
By Will Morton
PET brain scans show persistent brain inflammation in patients with multiple sclerosis (MS), despite being treated with therapies.
April 29, 2024
Individualized parametric z-score maps of the brain showing glial activity load in the brain, compared among individuals with secondary progressive MS (SPMS) (top row), relapsing-remitting MS (RRMS) (middle row), and a healthy control (HC) (bottom row) in transaxial, sagittal, and coronal sections. Image courtesy of Clinical Nuclear Medicine.
Understanding CT flow artifacts is key to better disease diagnosis
By Kate Madden Yee
Understanding the mechanics of flow artifacts on CT or CT angiography and how these artifacts are created is key to better disease diagnosis.
April 26, 2024
2024 04 25 Radio Graphics Robb Figure7 Thumbnail
Dual-tracer PET/CT shows promise in liver cancer patients
By Will Morton
Dual-tracer PET/CT appears valuable for improving tumor staging in patients with hepatocellular carcinoma being evaluated for treatment.
April 26, 2024
Liver Cancer
Studies lacking for trans breast cancer screening trends
By Amerigo Allegretto
There are limited studies examining breast cancer screening trends in transgender people.
April 25, 2024
Transgender Pride Symbol Social
ChatGPT performs poorly on ACR exam for residents
By Will Morton
ChatGPT-4 received a score of 58% on an exam by the American College of Radiology (ACR) used to assess the skills of diagnostic and interventional radiology residents.
April 24, 2024
Chatgpt 4
ChatGPT-4 not reliable in cancer patient messaging
By Amerigo Allegretto
ChatGPT-4 is not a reliable source for answering patients’ questions regarding cancer and needs physician monitoring.
April 25, 2024
Chat Gpt Artificial Intelligence Ai Head
CT reveals influence of diabetes on COVID-19 severity
By Kate Madden Yee
CT imaging reveals the influence of blood glucose levels on the severity of COVID-19, researchers have reported.
April 25, 2024
3 D Lungs Covid Virus Cells
State of the RT profession more palpable than ever
By Liz Carey
As the ASRT prepares to announce changes to its professional-entry pathways and practice standards at its June meeting in Orlando, FL, Board President Brandon Smith said the state of the field is "more palpable than ever."
April 24, 2024
Asrt Be Seen Campaign 2024
Clinical practice LCS program finds more disease than NLST
By Kate Madden Yee
A clinical practice lung cancer screening (LCS) program at Duke University Medical Center found more disease than did the National Lung Screening Trial (NLST).
April 24, 2024
Lung Illustration Blue
SPECT/CT predicts foot amputations in diabetics
By Will Morton
Technetium-99m white blood cell SPECT/CT imaging may be useful for identifying diabetic patients at risk of amputations due to foot infections.
April 24, 2024
Examples in two patients. (Top) Abnormal leukocyte accumulation was observed in the right 1st to 5th toes, with the radioactive lesions extending to the bone, indicating osteomyelitis (left panel, MIP image; right panel, axial SPECT/CT). Two spherical VOIs were drawn on diabetic foot infections (DFIs) and the highest SUVmax was 4.2 (higher than the cutoff of 1.1) Despite intensive treatment, the infection progressed, leading to the patient undergoing right below knee amputation 43 days after SPECT/CT. (Bottom) Mild focal abnormal leukocyte accumulation was detected in the right 3rd and 4th toes. The lesions were in contact with the bone, which raised a suspicion of osteomyelitis (left panel, MIP image; right panel, axial SPECT/CT). A circular VOI was drawn on DFIs and the SUVmax was 1.0 (lower than the cutoff of 1.1). After 10 weeks of antibiotic treatment, the infection was successfully resolved, and the foot was preserved. Image and caption courtesy of Scientific Reports.
Deep-learning algorithm improves liver fibrosis diagnosis
By Amerigo Allegretto
An algorithm combining the Fibrosis-4 Index and an ultrasound deep-learning model could improve diagnostic accuracy for advanced liver fibrosis.
April 23, 2024
Ultrasound Scanner Ultraviolet 400
Radiologists can take steps toward environmental sustainability
By Amerigo Allegretto
Radiology departments can take proactive steps to promote environmental sustainability.
April 23, 2024
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