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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MRI
‘Dark-light-dark sign’ on MRI predicts rectal cancer metastasis
Absence of the novel tumor feature on contrast-enhanced T1-weighted imaging was associated with a higher risk of lymph node metastasis.
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CT
CT-based model assesses lung lesions from nonsolid nodules
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MRI
MRI reveals how statins reduce vessel wall inflammation
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Molecular Imaging
New PET tracer helps detect pulmonary sarcoidosis
Kidney
Interventional
Transarterial embolization, cryoablation treat larger renal masses
More in Home
‘Dark-light-dark sign’ on MRI predicts rectal cancer metastasis
By Will Morton
Absence of the novel tumor feature on contrast-enhanced T1-weighted imaging was associated with a higher risk of lymph node metastasis.
December 23, 2025
2025 12 23 Dark Light Dark Sign Thumbnail
CT-based model assesses lung lesions from nonsolid nodules
By Amerigo Allegretto
A model based on CT imaging features performed well in a study, differentiating lung lesions from nonsolid nodules.
December 23, 2025
2025 12 23 Radiology Ct Lung Ternary Model Thumbnail
MRI reveals how statins reduce vessel wall inflammation
By Kate Madden Yee
The findings offer further evidence that statins reduce stroke risk.
December 23, 2025
2025 12 23 Radiology Zhang Figure5 Thumbnail
New PET tracer helps detect pulmonary sarcoidosis
By Will Morton
There is a pressing need for more specific molecular imaging tools that target the disease.
December 22, 2025
2025 12 22 Sarcoidosis Thumbnail
Transarterial embolization, cryoablation treat larger renal masses
By Amerigo Allegretto
Sequential transarterial embolization and CT-guided percutaneous cryoablation can successfully treat renal masses.
December 22, 2025
Kidney
Brain imaging, billing, radiation exposure top 2025's most-read list
By Liz Carey
Snapshots we've curated in this roundup make it easy for you to review what AuntMinnie's members read the most in 2025.
December 22, 2025
Top 10 Paint
75% gadolinium reduction maintains diagnostic sensitivity in breast MRI
By Liz Carey
Study suggests real-world feasibility of AI-driven dose reduction with preserved diagnostic confidence in breast imaging.
December 22, 2025
Gadolinium Social
PET/CT detects bone involvement in patients with lymphoma
By Will Morton
Research suggests that F-18 FDG-PET/CT could replace invasive bone marrow biopsy.
December 19, 2025
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Insurer benchmark used for NSA disputes lower than in-network rate
By Amerigo Allegretto
A study by the AFHC found that QPAs used for the No Surprises Act (NSA) often understate actual median in-network payment rates.
December 19, 2025
Insurance Policy
Is 7-tesla MRI poised for routine clinical integration?
By Kate Madden Yee
The future looks bright for the technology, researchers noted.
December 19, 2025
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Online safety screening for MRI exams reduces prep time, cancellations
By Kate Madden Yee
The average 4.6% reduction in patient preparation time may seem modest, but is a meaningful gain in efficiency, researchers noted.
December 18, 2025
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Dark-field radiography improves detection of pneumothorax
By Will Morton
The technique substantially reduced reading time without compromising sensitivity.
December 18, 2025
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