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
Lung Cancer
CT
What causes lung cancers to be missed on screening?
Incomplete smoking history documentation appears to be one of the reasons.
2025 12 12 Fapi Breast Cancer Thumbnail
Molecular Imaging
Early PET/CT feasible in women with suspected breast cancer
Doctor Patient Consult Tablet
Womens Imaging
Study highlights risk-based breast cancer screening; ACR responds
At RSNA 2025, thoracic radiologists debated using autonomous AI for chest radiograph interpretation. They also fielded many audience questions and comments as well.
AI
Is AI ready for autonomous reads of chest x-rays?
Ai Face
AI
Patients support AI in radiology, but not as a standalone reader
More in Home
What causes lung cancers to be missed on screening?
By Kate Madden Yee
Incomplete smoking history documentation appears to be one of the reasons.
December 12, 2025
Lung Cancer
Early PET/CT feasible in women with suspected breast cancer
By Will Morton
Early imaging is not only more patient-friendly but also has the potential to simplify clinical workflows.
December 12, 2025
2025 12 12 Fapi Breast Cancer Thumbnail
Study highlights risk-based breast cancer screening; ACR responds
By Amerigo Allegretto
A study showing the potential benefits of risk-based breast cancer screening has drawn criticism from the ACR.
December 12, 2025
Doctor Patient Consult Tablet
Is AI ready for autonomous reads of chest x-rays?
By Liz Carey
A debate at RSNA 2025 reviewed the current use of autonomous AI for chest radiographs and assessed future opportunities.
December 11, 2025
At RSNA 2025, thoracic radiologists debated using autonomous AI for chest radiograph interpretation. They also fielded many audience questions and comments as well.
Patients support AI in radiology, but not as a standalone reader
By Will Morton
A majority of survey respondents would not agree to AI as a sole reader.
December 11, 2025
Ai Face
Lung cancer rates low on chest CT after incidental neck imaging findings
By Kate Madden Yee
The results could indicate that follow-up chest CT may not be necessary in this situation.
December 11, 2025
Lung Cancer
Adding AI to MRI improves return to play classification frameworks
By Kate Madden Yee
Predicting when athletes can safely return to play after an injury is key.
December 10, 2025
Football Players Scrimmage
Marathon training does not have long-term negative effects on heart
By Amerigo Allegretto
Echocardiography shows that endurance training by marathon runners does not have long-term negative effects on the heart.
December 10, 2025
Runner Street Thumbnail Adobe Augustas Cetkauskas
Phase I trial reveals the potential of a new PSMA-PET tracer
By Will Morton
The radiotracer detected more lesions in men with metastatic disease than F-18 piflufolastat.
December 9, 2025
Scans in a 73-year-old man with biochemically recurrent prostate cancer (prostate-specific antigen level of 0.5 ng/mL) who underwent PET/CT with 9.4 mCi of F-18 piflufolastat and a second PET/CT examination with 8.1 mCi of copper 61-NODAGA (1,4,7-triazacyclononane,1-glutaric acid-4,7-acetic acid)–prostate-specific membrane antigen for imaging and therapy (Cu-61 PSMA I&T) 24 days apart, with no intervening therapy. Maximum intensity projection (MIP) images obtained (A) 1 hour after F-18 piflufolastat administration and (B) 1, (C) 2, and (D) 4 hours after Cu-61 PSMA I&T administration are shown. Physiologic uptake is seen in the lacrimal glands, salivary glands, liver, spleen, kidneys, ureters, and bladder. Pathologic uptake in pelvic nodal metastases is labeled with arrows. The F-18 piflufolastat PET/CT MIP image reveals two avid pelvic nodal metastases (arrows). Cu-61 PSMA I&T PET/CT scans demonstrate three avid pelvic nodal metastases on 1-hour and 2-hour images (arrows); five avid pelvic nodal metastases were suspected on the 4-hour image (arrows).
Radiologists can designate nonmass lesions on breast ultrasound
By Amerigo Allegretto
Breast radiologists achieved moderate to substantial interreader agreement for classifying nonmass lesions on ultrasound.
December 9, 2025
Images depict a 50-year-old woman with a lesion detected during screening ultrasound. (A) Transverse and (B) longitudinal images reveal a 0.5-cm hypoechoic lesion (arrow) in the left breast. (C) Transverse color Doppler ultrasound image does not show an increase in vascularity. Two readers classified the lesion as a mass, whereas two others categorized it as a nonmass lesion, leading to its designation as a controversial nonmass lesion. Ultrasound-guided core needle biopsy and subsequent pathologic examination confirmed a nonproliferative breast change.
Long COVID's neurological effects persist
By Kate Madden Yee
Long COVID is typically defined as persistent symptoms beyond four weeks from onset of the illness.
December 9, 2025
Coronavirus
MRI proves effective for tracking results of obesity interventions
By Kate Madden Yee
MRI is a powerful tool to monitor skeletal muscle adaptations during lifestyle interventions for obesity, researchers noted.
December 8, 2025
Obesity Text2
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