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
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Molecular Imaging
SNMMI: New molecular imaging agent shows promise for detecting HCC
A new molecular imaging agent has shown high sensitivity and specificity in detecting hepatocellular carcinoma (HCC).
Women Cancer Patient 400
Molecular Imaging
SNMMI: PET imaging improves OMD detection in breast cancer patients
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Molecular Imaging
SNMMI: F-18 FDS PET distinguishes molds in invasive fungal infections
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Molecular Imaging
SNMMI: New immuno-PET tracer awarded Image of the Year
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SNMMI: New molecular imaging agent shows promise for detecting HCC
By Kate Madden Yee
A new molecular imaging agent has shown high sensitivity and specificity in detecting hepatocellular carcinoma (HCC).
June 23, 2025
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SNMMI: PET imaging improves OMD detection in breast cancer patients
By Amerigo Allegretto
PET imaging improves oligometastatic breast cancer detection over conventional imaging.
June 23, 2025
Women Cancer Patient 400
SNMMI: F-18 FDS PET distinguishes molds in invasive fungal infections
By Liz Carey
Novel PET radiotracer shows promise for molecular imaging infection and inflammation.
June 23, 2025
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SNMMI: New immuno-PET tracer awarded Image of the Year
By Will Morton
A new immuno-PET tracer is superior to conventional F-18 FDG in patients with head and neck cancer.
June 23, 2025
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SNMMI: PET/MRI helps manage patients with chronic spinal pain
By Will Morton
F-18 FDG-PET/MRI scans can detect previously unidentified locations of chronic spinal pain.
June 23, 2025
Coronal fused FDG-PET/MRI image of a patient with right upper back pain demonstrates asymetric uptake in the right trapezius muscle without abnormality on MRI to suggest edema or denervation injury. Trigger point lidocaine injection of the area based on PET/MRI findings resulted in complete relief of symptoms (pain score reduced to 0 from a baseline of 6).
SNMMI: Dual-targeting radioligand therapy safe for several cancers
By Will Morton
A new "dual-targeting" radioligand therapy has been shown to be safe and effective in humans.
June 22, 2025
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Video from SNMMI: Phillip Kuo on new Alzheimer’s disease imaging guidelines
By Will Morton
A video interview with Phillip Kuo, MD, PhD, on Alzheimer's disease imaging.
June 22, 2025
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SNMMI: Dual PET/MRI technique could help manage primary aldosteronism
By Will Morton
Using two imaging agents with PET/MRI could help manage patients with primary aldosteronism.
June 22, 2025
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SNMMI: Retreatment with Lu-177 PSMA-617 shows promise in mCRPC patients
By Will Morton
Retreatment with Lu-177 PSMA-617 is emerging as a potential approach in men with prostate cancer.
June 21, 2025
Gokce Bilgin, MD, presented results of a Pluvicto study June 21 at SNMMI 2025 in New Orleans.
SNMMI: New PET tracers developed for imaging brain disorders
By Will Morton
Two newly developed PET imaging agents are effective for identifying a highly expressed receptor in neurological and psychiatric conditions.
June 21, 2025
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SNMMI: SPECT/CT valuable after Lu-177 therapy
By Will Morton
Post-therapy SPECT/CT imaging can optimize treatment outcomes and protected patients undergoing radiopharmaceutical therapy.
June 21, 2025
Top image displays a patient assessed for acute renal failure following third Lutathera administration where 3D dosimetry showed an average-per-administration kidney absorbed dose of 5 Gray, with total course of therapy being well under toxicity limits. Bottom image displays a patient’s absorbed dose to the colon after his first dose of Pluvicto where 3D dosimetry was used to confirm transient bowel obstruction leading to treatment management.
DL model improves detection of breast arterial calcifications
By Amerigo Allegretto
Researchers have developed a deep-learning (DL) model that can find and characterize breast arterial calcifications on mammograms.
June 20, 2025
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