Scott Williams

Cardiac
Cardiac > Congenital > Ventricular diverticulum
September 24, 2007
Cardiac
Cardiac > Adultdz > Myocarditis
September 24, 2007
Pulmonary
Pulmonary > V-Q exam
August 1, 2007
PET
PET > PET tumor imaging > Lung Cancer
July 12, 2007
Differential Diagnoses
Diffs
July 1, 2007
Mediastinal Masses
Mediastinum > General
July 1, 2007
PET
PET > PET tumor imaging > Thyroid Cancer
May 31, 2007
PET
PET > PET tumor imaging > Thyroid Cancer
May 31, 2007
PET
PET > PET tumor imaging > Thyroid Cancer
May 31, 2007
Pleura
Pleura > Trapped lung
May 31, 2007
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Top Stories
3D medical illustration of human liver with anatomical blood vessels and pink dotted pattern background
MRI
Gadoxetic acid-enhanced MRI changing understanding of liver diseases
The contrast agent is changing approaches toward diagnosis of liver diseases, according to data collected over the last 15 years.
Medical imaging analysis showing CT scans with segmentation, 3D anatomical reconstructions, and Bland-Altman statistical comparison plot.
CT
Deep-learning model predicts mortality from CTA scans
Axial MRI or CT scan cross-section showing bilateral anatomical structures in grayscale medical imaging
Womens Imaging
Screening breast MRI may be considered for high-risk women
MinnieCast Women's Imaging podcast episode featuring Dr. Stamatia Destounis with medical imaging background
Womens Imaging
Women's Imaging MinnieCast, Episode 20: Could DBT performance inform age-based screening?
Free Webinar: Agentic AI in Radiology
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Free Webinar: Agentic AI in Radiology
More in Home
AI cuts chest CT reporting time
By Will Morton
Exploratory modeling suggested an approximate reduction of 0.5 full-time equivalent radiologist workload.
September 1, 2026
Example of AI-assisted pulmonary nodule detection and longitudinal volumetric assessment in a 65-year-old woman with peripheral arterial disease, a 24-pack-year smoking history, emphysema, and a family history of lung cancer. An incidental 8.5-mm right lower lobe pulmonary nodule is identified at CT angiography of the abdomen in July 2022 but does not receive follow-up. Subsequent imaging demonstrates interval growth, and CT-guided biopsy confirms stage IA lung adenocarcinoma. Contrast-enhanced axial chest CT images obtained on February 2, 2024, before robotic-assisted thoracoscopic segmentectomy, show a 12.1-mm spiculated right lower lobe pulmonary nodule. (A) Conventional contrast-enhanced axial chest CT image without AI assistance shows a 12.1-mm spiculated right lower lobe pulmonary nodule. (B) Corresponding CT image with AI-assisted pulmonary nodule detection, automated segmentation, and quantitative nodule assessment identifies a solid pulmonary nodule (nodule #1) measuring 13 × 8 (11) mm, with a volume of 739 mm3, a 45% volumetric increase compared with the previous contrast-enhanced chest CT performed on October 9, 2023 (510 mm3), and an estimated volume doubling time (VDT) of 216 days. (C) AI-generated longitudinal nodule analysis displays automated segmentation of the current (February 2, 2024) and previous (October 9, 2023) CT examinations, 3D nodule reconstruction, and quantitative volumetric assessment for longitudinal follow-up. The AI interface is displayed in the original software language (Dutch).
PCCT on par with MRI for diagnostic breast imaging
By Amerigo Allegretto
PCCT performed similarly to MRI for characterizing breast lesions and finding additional lesions.
September 1, 2026
Medical imaging classification chart showing four morphological patterns across three imaging modalities for diagnostic reference.
Self-interpreting by ordering clinicians tied to low-value imaging
By Amerigo Allegretto
Visits involving clinicians who self-interpreted all their ordered imaging had higher odds of imaging overall.
September 1, 2026
Radiological Report document header with diagnostic department text in blue
POCUS improves timeliness in emergency pregnancy care
By Amerigo Allegretto
Emergency POCUS can reduce length of stay and time to diagnosis while not leading to more missed diagnoses of ectopic pregnancy.
August 31, 2026
White wireless remote control or device held in hand with minimalist design
Bayer's PET agent meets endpoints in phase III cardiac amyloidosis study
By Will Morton
Overall sensitivity was 94% (95% CI, 85% to 98%) and specificity was 86% (95% CI, 77% to 92%).
August 31, 2026
Cardiac PET/CT imaging comparison showing five amyloidosis types with axial, sagittal, and coronal views demonstrating varying myocardial uptake patterns.
MRI-based biomarker tool can predict progression to dementia
By Amerigo Allegretto
The tool measures gray matter shrinkage in the brain, predicting when mild cognitive impairment progresses to dementia.
August 28, 2026
3D brain illustration with glowing red and yellow highlighting on the frontal lobe against a blue background
Is nitroglycerin necessary prior to photon-counting CT?
By Will Morton
Sublingual nitroglycerin is routinely administered before CCTA to induce coronary vasodilation.
August 27, 2026
Medical imaging comparison showing vascular CT angiography scan and coronary angiography with arterial contrast visualization
PET outperforms CT in ovarian cancer
By Will Morton
Peritoneal carcinomatosis in ovarian cancer is cancer that has spread from the ovaries to the peritoneum.
August 28, 2026
Multimodal medical imaging showing CT, PET, and fused PET-CT scans for oncological assessment with axial, coronal, and full-body views.
Advanced ultrasound techniques improve soft tissue tumor evaluation
By Amerigo Allegretto
Both SWE and SMI can help distinguish benign from malignant soft tissue tumors.
August 26, 2026
Medical ultrasound and CT scan imaging panels showing diagnostic vascular and abdominal studies with Doppler flow analysis
Sustainability efforts should look to state power grids
By Amerigo Allegretto
Variation in grid carbon intensity by state drives per-beneficiary greenhouse gas emissions from MRI and CT use.
August 28, 2026
US map showing estimated per-beneficiary GHG emissions from Medicare Part B outpatient services by state in 2022, with color gradient indicating emission levels.
Women's Imaging MinnieCast, Episode 16: Breast AI expectations versus performance
By Amerigo Allegretto
Azadeh Elmi, MD, shares results showing how breast imaging AI tools have modest clinical benefit in practice over expectations.
August 28, 2026
MinnieCast Women's Imaging podcast episode featuring Dr. Azadeh Elmi, MD
CT reveals progressive growth pattern in incidental lung nodules
By Will Morton
This pattern is most associated with a family history of lung cancer.
August 25, 2026
Longitudinal CT scan comparison showing lung lesion growth from October 2017 to October 2022, with measurements ranging from 5.6mm to 10.2mm across six follow-up intervals.
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