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
Mammography Breast Ipad Patient 400
Womens Imaging
Women who skip first mammogram more likely to die of breast cancer
Women who do not participate in their first breast cancer screening are 40% more likely to die later from the disease.
Breast Tomosynthesis Digital 400 (1)
AI
Study finds AI not cost-effective for breast cancer screening
Rural Res
Womens Imaging
ACS: Cancer survival rates are lower in rural areas
Planet Sustainability
Service
Save power, curb carbon by switching off surplus CT scanners
Digital Innovations Shaping the Future of Radiology
Sponsor Content
Digital Innovations Shaping the Future of Radiology
More in Home
Women who skip first mammogram more likely to die of breast cancer
By Amerigo Allegretto
Women who do not participate in their first breast cancer screening are 40% more likely to die later from the disease.
September 24, 2025
Mammography Breast Ipad Patient 400
Study finds AI not cost-effective for breast cancer screening
By Amerigo Allegretto
AI is not cost-effective for breast cancer screening, even with reductions in mortality, false-positive cases, and false-negative cases, according to new research.
September 24, 2025
Breast Tomosynthesis Digital 400 (1)
ACS: Cancer survival rates are lower in rural areas
By Kate Madden Yee
The research also reported lower cancer survival rates for Blacks compared to whites, underscoring "disparities in receipt of care."
September 24, 2025
Rural Res
Save power, curb carbon by switching off surplus CT scanners
By Kate Madden Yee
A new study's findings suggest a relatively easy way to "go green" in the radiology suite.
September 23, 2025
Planet Sustainability
Radiologists deem AI x-ray reports clinically acceptable
By Will Morton
There was no evidence of a difference in acceptability between AI- and radiologist-generated reports under a standard criterion.
September 23, 2025
Kara Cxr
ACR CEO talks imaging’s role in spending bill
By Amerigo Allegretto
Dana Smetherman, MD, CEO of the ACR, spoke with AuntMinnie.com about appropriations bills and how imaging may be affected.
September 23, 2025
American Flag Waving 400 (1)
Adding MBI to DBT finds more breast cancers
By Amerigo Allegretto
Adding molecular breast imaging (MBI) to DBT screening leads to more invasive cancers detected in women with dense breasts.
September 23, 2025
Images in a 62-year-old woman who presented for screening. (A) Image from DBT screening (the synthesized 2D mediolateral oblique view of the left breast is shown) at year on was interpreted as negative and showing heterogeneously dense breast. (B) Image from molecular breast imaging screening (mediolateral oblique view) at year one reveals a 0.9-cm non-mass focal area of uptake in the left breast (arrow). (C) Targeted ultrasound scan (transverse image) shows a suspicious mass in the 3-o’clock position of the left breast, 4 cm from the nipple. Ultrasound-guided core biopsy and lumpectomy revealed a 0.9-cm grade 2 invasive ductal carcinoma, an estrogen receptor–negative, progesterone receptor–negative, human epidermal growth factor receptor 2–negative lesion, with two sentinel nodes negative (N0).
DEXA study questions OsteoStrong claims
By Will Morton
Bone outcomes either remained stable or declined in 38 women who used the musculoskeletal strengthening program for eight months.
September 22, 2025
Dexa
MWA successful in treating multinodal thyroid conditions
By Amerigo Allegretto
Ultrasound-guided MWA is effective for treating solitary nodules, multinodular goiters, and autonomously functioning nodules.
September 22, 2025
Ultrasound Collage
AI industry paid $39.7M for radiology devices between 2017 and 2023
By Will Morton
The funds were part of a total of $179 million in payouts to healthcare professionals and hospitals over the timeframe.
September 22, 2025
Ai Money
Radiation oncologists put RefleXion’s X1 system to the test
By Will Morton
A pilot study demonstrates the potential feasibility of using RefleXion's X1 unit in patients with prostate cancer.
September 19, 2025
An example of a typical BgRT plan: A) PET scan on diagnostic PET/CT and B) X1 PET-Linac for patient #15 with a PET avid rib metastasis with GTV size= 3.1 cc, PTV = GTV + 5mm, BTZ (biological tracking zone) = PTV + 5 mm, AC = 14.33 kBq/mL and NTS = 21.04. Red, magenta, and green contours represent GTV, PTV, and BTZ. C) Dose distribution and D) bounded-DVH of a BgRT plan are displayed for the same patient. The bounded Dose-Volume Histogram (DVH) models variations in BgRT delivery, encompassing fluctuation in target background signal variation, target localization and dose delivery uncertainties.
Is it time to ditch physical exams before ultrasound?
By Amerigo Allegretto
Physical exams are omitted in over half of patient cases, and it seems diagnostic outcomes are unaffected.
September 19, 2025
Patient Physical Exam
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