Dr. Tan-Lucien Hassan Mohammed

Residents/Fellows
6 Steps to Radiology: Part 1 -- Where do I sign up?
6 Steps to Radiology is a series of six articles that will run throughout the 2018-2019 academic year to help medical students find their ideal radiology residency program. In our first article, Dr. Tan-Lucien Hassan Mohammed of the University of Florida offers tips for polishing your application.
June 17, 2018
2018 06 15 21 50 1414 Six Steps To Radiology Residency
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Two representative cases demonstrate the performance of PlaqueSegNet for coronary plaque segmentation. (A–D) Coronary CT angiography (CCTA) and intravascular US (IVUS) images in a 65-year-old male patient with chest pain for two months show plaque. (A) Cross-sectional IVUS image shows a lipid-rich plaque (hypoechoic, arrows). (B) Axial and (C) cross-sectional CCTA images show the same plaque (low-attenuation area, yellow line and arrows) in the proximal left anterior descending artery. (D) PlaqueSegNet segmentation of the noncalcified plaque (yellow shading) and coronary lumen (green shading) in the cross-sectional image. (E–G) CCTA images in a 57-year old female patient with chest pain for three months show multiple plaques. (E) Volume-rendered CCTA image of the coronary tree shows PlaqueSegNet plaque segmentation (yellow) in the right and left coronary arteries. (F, G) PlaqueSegNet segmentation delineates a mixed plaque (yellow shading) and coronary lumen (green shading) in the left main artery and proximal-to-mid left anterior descending artery.
CT
AI plus CCTA cuts plaque analysis time, predicts cardiac event risk
A deep-learning model quantifies coronary plaque volume from coronary CT angiography (CCTA) images.
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DBT availability similar in areas with high, low resource deprivation
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Medicolegal
Podcast: Story just got 'weirder' in Nassau Open MRI fatality
A 65-y-old man with HCC and liver cirrhosis confirmed by MRI. Ga-68 FAPI-46 PET/CT demonstrates increased focal uptake (SUVmax, 13.26, and TBRmax, 2.89) in liver, whereas F-18 FDG-PET/CT scans showed non–F-18 FDG-avid lesion (SUVmax, 3.24, and TBRmax, 1.43), indicated by solid arrows. Additionally, histologically proven adenocarcinoma in colon transversum was identified as pathologic with Ga-68 FAPI-46 alone (dashed arrows).
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AI plus CCTA cuts plaque analysis time, predicts cardiac event risk
By Kate Madden Yee
A deep-learning model quantifies coronary plaque volume from coronary CT angiography (CCTA) images.
April 21, 2026
Two representative cases demonstrate the performance of PlaqueSegNet for coronary plaque segmentation. (A–D) Coronary CT angiography (CCTA) and intravascular US (IVUS) images in a 65-year-old male patient with chest pain for two months show plaque. (A) Cross-sectional IVUS image shows a lipid-rich plaque (hypoechoic, arrows). (B) Axial and (C) cross-sectional CCTA images show the same plaque (low-attenuation area, yellow line and arrows) in the proximal left anterior descending artery. (D) PlaqueSegNet segmentation of the noncalcified plaque (yellow shading) and coronary lumen (green shading) in the cross-sectional image. (E–G) CCTA images in a 57-year old female patient with chest pain for three months show multiple plaques. (E) Volume-rendered CCTA image of the coronary tree shows PlaqueSegNet plaque segmentation (yellow) in the right and left coronary arteries. (F, G) PlaqueSegNet segmentation delineates a mixed plaque (yellow shading) and coronary lumen (green shading) in the left main artery and proximal-to-mid left anterior descending artery.
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DBT is offered at similar rates among areas with high and low resource deprivation, and at similar costs.
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FAPI-PET superior to FDG-PET in liver cancer
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The finding is from a prospective head-to-head comparison among 59 patients with suspicious lesions.
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A 65-y-old man with HCC and liver cirrhosis confirmed by MRI. Ga-68 FAPI-46 PET/CT demonstrates increased focal uptake (SUVmax, 13.26, and TBRmax, 2.89) in liver, whereas F-18 FDG-PET/CT scans showed non–F-18 FDG-avid lesion (SUVmax, 3.24, and TBRmax, 1.43), indicated by solid arrows. Additionally, histologically proven adenocarcinoma in colon transversum was identified as pathologic with Ga-68 FAPI-46 alone (dashed arrows).
Women face more diagnostic delays after abnormal mammograms
By Amerigo Allegretto
Since the COVID-19 pandemic, women face more diagnostic delays in having their abnormal screening mammograms evaluated.
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Group assessed trends in industry research payments.
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Findings indicate that cancers with the highest lethality receive disproportionately lower levels of federal research support.
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Brain MRI, PET may predict who gains most from lifestyle interventions
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Brain MRI, PET could help identify which older adults are most likely to benefit from a structured lifestyle program.
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ACR, SBI issue joint criticism toward ACP breast screening guidelines
By Amerigo Allegretto
The ACR and SBI are criticizing new guidelines on breast cancer screening by the American College of Physicians.
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Judge dismisses Aetna fraud case against Radiology Partners
By Liz Carey
Aetna sought to have the IDR awards vacated.
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GPT-4o matches experienced radiologists for follow-up imaging recs
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The AI model matched the performance of radiologist readers in recommending follow-up imaging from routine radiology reports.
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Half of women reject clinician metrics tied to breast screening rates
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Half of women oppose clinician metrics from breast screening attendance, and many oppose financial incentives from higher ratings.
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