Erik L. Ridley

ISMRM 2025
ISMRM: AI spots ischemic heart disease on low GBCA dose images
An AI-based framework was highly accurate for detecting myocardial ischemia, even on images acquired with 90% less gadolinium.
May 14, 2025
Representative stress perfusion CMR case with 80% contrast dose reduction. Pixel-wise MBF maps and AHA 16-segment bull's eye plots are shown for full-dose and reduced-dose acquisitions. When analyzed using the proposed MST deep learning method, the reduced-dose data closely matches the full-dose data across basal, mid, and apical slices. In contrast, Fermi-deconvolution shows good agreement in apical and mid slices but overestimates MBF in some basal segments, indicating reduced accuracy under low-dose conditions. Image courtesy of the ISMRM.
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Top Stories
Heart
Molecular Imaging
PiB-PET/CT detects subtypes in cardiac amyloidosis
PiB-PET/CT shows strong promise as a next-generation diagnostic tool for cardiac amyloidosis.
Contrast Injector
Practice Management
HPI: 13.5B mL of contrast media administered from 2011 to 2024
2025 12 05 Ai Decision Support Tool Ultrasound Thumbnail
Ultrasound
AI ultrasound tool could reduce unnecessary biopsies by 60%
Lung Ct Images
RSNA 2025
3D CNN model estimates MACE risk from chest CT
Rsna 2025 Welcome
RSNA 2025
What is the role of AI quantitation of coronary plaque?
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PiB-PET/CT detects subtypes in cardiac amyloidosis
By Will Morton
PiB-PET/CT shows strong promise as a next-generation diagnostic tool for cardiac amyloidosis.
December 5, 2025
Heart
HPI: 13.5B mL of contrast media administered from 2011 to 2024
By Kate Madden Yee
The findings are sobering, as contrast use contributes to environmental pollution.
December 5, 2025
Contrast Injector
AI ultrasound tool could reduce unnecessary biopsies by 60%
By Amerigo Allegretto
An AI tool could help reduce unnecessary breast biopsies, but should be used in conjunction with radiologist decision-making.
December 5, 2025
2025 12 05 Ai Decision Support Tool Ultrasound Thumbnail
3D CNN model estimates MACE risk from chest CT
By Kate Madden Yee
The algorithm appears effective at predicting major adverse cardiovascular events (MACE) even when applied to diverse patient groups.
December 5, 2025
Lung Ct Images
What is the role of AI quantitation of coronary plaque?
By Liz Carey
Tracking coronary artery calcium score alone is not enough, according to an RSNA presentation.
December 4, 2025
Rsna 2025 Welcome
PET/MRI detects ‘unknown’ generators of musculoskeletal pain
By Will Morton
Potential pain generators were identified by increased F-18 FDG radiotracer uptake on PET and/or structural abnormalities on MRI.
December 4, 2025
Lbp
Axillary ultrasound predicts nodal disease burden in breast cancer
By Amerigo Allegretto
Axillary ultrasound can predict significant nodal disease burden in breast cancer patients, which could help avoid biopsy.
December 4, 2025
Ultrasound Collage
AI reduces MRI's carbon footprint
By Kate Madden Yee
Using AI with MRI imaging reduces exam time and therefore energy consumption and carbon dioxide emissions.
December 4, 2025
Co2 Cloud Adobe Stock
Air pollution linked to more advanced coronary artery disease
By Kate Madden Yee
Even at low exposure levels, air pollution is associated with more plaque in the coronary arteries, researchers reported.
December 4, 2025
City Air Pollution
The 2025 PACSMan Awards -- The last hurrah
By Michael J. Cannavo
For perhaps the final time, consultant Michael J. Cannavo doles out his annual PACSMan Awards.
December 3, 2025
Cannavo Michael Rsna 2025 Thumbnail
Cryoablation treats early-stage breast cancer in older women
By Amerigo Allegretto
Cryoablation is effective in treating early-stage, ER+ breast cancer in older women who do not undergo surgery.
December 3, 2025
Rsna 2025 Welcome
Multiparametric MRI finds more diabetic neuropathy than single parameter
By Kate Madden Yee
The study results could "enhance noninvasive evaluation of peripheral nerve integrity in diabetic populations," researchers noted.
December 3, 2025
Neuropathy Foot Ulcers Diabetic Adobe Pisahouse
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