Scott Williams

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PET > PET tumor imaging > Neuroendocrine tumors
April 14, 2021
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Inhale > E-cigaretteVaping Associated Lung Injury
April 14, 2021
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Infect > Viral > Rhinovirus
October 19, 2020
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Tumor > Benign > Inflammatory myofibroblastic tumor
October 19, 2020
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Autoimmune > Hyalinizing granuloma
October 19, 2020
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October 19, 2020
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Infect > Viral > Influenza
October 19, 2020
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October 19, 2020
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October 19, 2020
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October 19, 2020
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Inflammatory Bowel Crohns
CT
4 CT signs help predict ischemia in small bowel obstruction
The signs "could be prioritized when interpreting CT examinations in patients with SBO to help guide surgical decision-making."
Uterine and placental changes during an example placental contraction. The top row shows axial MRI images at selected times points before, during and after a placental contraction (indicated by vertical lines on the graph below) with segmentations shown below. Changes in placental and non-placental volumes, wall areas and placental R2* (all measured across the whole volume of the uterus, not just the single slice shown) are plotted underneath. The legend indicates the colors used for the lines in the plots and the regions indicated in the segmentation.
MRI
MRI reveals occurrence of placental contractions
Quantification of total tumor volume (TTV) at lutetium-177 prostate-specific membrane antigen (PSMA)–617 SPECT/CT shows heterogeneous TTV responses between dose 1 (Cycle #1) and dose 2 (Cycle #2) in participants with metastatic castration-resistant prostate cancer. Posttherapy coronal attenuation-corrected noncontrast SPECT/CT maximum intensity projection images demonstrate (A) near-complete response in a 76-year-old man, (B) complete response in an 83-year-old man, (C) partial TTV reduction (not complete response) in a 69-year-old man, and (D) TTV increase (i.e. progressive disease) in a 74-year-old man. Blue-shaded regions represent semiautomatically segmented PSMA-avid tumor volume, with associated TTV values given at the bottom of each panel. The gradient bar shows standardized uptake value (SUV) from 0 to 5.
Molecular Imaging
Lu-177 PSMA-SPECT/CT predicts survival in mCRPC
Pancreas New
CT
AI algorithm shines in spotting early pancreatic cancer
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4 CT signs help predict ischemia in small bowel obstruction
By Kate Madden Yee
The signs "could be prioritized when interpreting CT examinations in patients with SBO to help guide surgical decision-making."
April 29, 2026
Inflammatory Bowel Crohns
MRI reveals occurrence of placental contractions
By Kate Madden Yee
Characterizing these contractions could help clinicians better understand the placenta's function.
April 29, 2026
Uterine and placental changes during an example placental contraction. The top row shows axial MRI images at selected times points before, during and after a placental contraction (indicated by vertical lines on the graph below) with segmentations shown below. Changes in placental and non-placental volumes, wall areas and placental R2* (all measured across the whole volume of the uterus, not just the single slice shown) are plotted underneath. The legend indicates the colors used for the lines in the plots and the regions indicated in the segmentation.
Lu-177 PSMA-SPECT/CT predicts survival in mCRPC
By Will Morton
Lu-177 PSMA-617 SPECT/CT total tumor volume complete response at six weeks associated with overall survival.
April 29, 2026
Quantification of total tumor volume (TTV) at lutetium-177 prostate-specific membrane antigen (PSMA)–617 SPECT/CT shows heterogeneous TTV responses between dose 1 (Cycle #1) and dose 2 (Cycle #2) in participants with metastatic castration-resistant prostate cancer. Posttherapy coronal attenuation-corrected noncontrast SPECT/CT maximum intensity projection images demonstrate (A) near-complete response in a 76-year-old man, (B) complete response in an 83-year-old man, (C) partial TTV reduction (not complete response) in a 69-year-old man, and (D) TTV increase (i.e. progressive disease) in a 74-year-old man. Blue-shaded regions represent semiautomatically segmented PSMA-avid tumor volume, with associated TTV values given at the bottom of each panel. The gradient bar shows standardized uptake value (SUV) from 0 to 5.
AI algorithm shines in spotting early pancreatic cancer
By Kate Madden Yee
The findings could help shift diagnosis of PDA from late-stage terminal disease to early-stage treatable disease.
April 28, 2026
Pancreas New
Functional MRI predicts CTD-ILD progression better than standard tests
By Kate Madden Yee
The technique performs better for this indication than do standard clinical tools such as chest CT and pulmonary function tests.
April 28, 2026
Lung Illustration Blue
PET improves treatment planning for pituitary tumors
By Will Morton
Ga-68 DOTATATE PET altered radiation treatment volumes by nearly 20% compared with MRI alone.
April 28, 2026
A 53-year-old patient (patient number four) with a recurrent pituitary adenoma with extension of a cystic component of disease to the medial temporal lobe apparent on MRI (contoured in blue), and extension of disease to the left sphenoid bone and orbital apex apparent on [68Ga]Ga-DOTA-TATE (contoured in yellow).
Replacing radiologists doesn’t remove risk -- it moves it to patients
AI is not ready to replace radiologists in any meaningful or scalable way.
April 28, 2026
Rishi Seth
Radiology researchers weigh in on the impact of the political climate
By Liz Carey
Group begins research into how political environments may intersect with research practice.
April 27, 2026
Washington Dc Capitol Social
Children ‘almost invisible’ in public imaging datasets
By Will Morton
Among 135 datasets with usable age data, children accounted for just 6,026 of 512,608 patients (under 2%).
April 27, 2026
Children
AI model predicts cardiovascular risk from BACs on mammograms
By Amerigo Allegretto
An AI model showed success in using age-adjusted breast arterial calcifications from mammograms to predict cardiovascular events.
April 27, 2026
Example of Percentile Nomogram With Age-Adjusted BAC Quartiles. (A) Mammogram of a 56-year-old woman. There is evident BAC (pink arrow). This was quantified as a BAC score of 30 using the cmAngio tool. (B) Nomogram indicating that a BAC score of 30 places a 56-year-old woman within the 50th to 75th percentile for her age. Images are republished under a Creative Commons license (CC BY 4.0).
AI improves mammography specificity, speed in Asia-Pacific reader study
By Kate Madden Yee
Use of an AI-CAD algorithm cut average interpretation time by more than 30%.
April 27, 2026
Ai Hand
ChatGPT matches nuclear medicine experts on FDG-PET/CT scans
By Will Morton
Models excelled on cases with well-defined metabolic patterns, such as in typical cases of Alzheimer's disease, yet were less accurate on complex cases.
April 24, 2026
Ai Face
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