Subspecialties: Page 50

Surveillance may be used for DBT-detected architectural distortions
By Amerigo Allegretto
Imaging surveillance may be a safe alternative to surgery for architectural distortions detected on digital breast tomosynthesis (DBT) alone.
March 12, 2025
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DL algorithm targeting prostate cancer demonstrates clinical impact
By Liz Carey
Per participant, a deep-learning (DL) algorithm demonstrated increased specificity of 64.8% compared with radiologists at 21.3%.
March 12, 2025
MRI scans show two areas of clinically significant prostate cancer in a 65-year-old man with a prostate-specific antigen level of 8.23 ng/mL. Images are (A, E) axial T2-weighted images, (B, F) axial diffusion-weighted images obtained with a b value of 1500 sec/mm2, (C, G) axial apparent diffusion coefficient images, and (D, H) lesion masks generated by the deep learning algorithm (DLA) on T2-weighted images. The DLA detected a lesion in the right posteromedial peripheral zone of the apex (D), which was assigned as Prostate Imaging Reporting and Data System (PI-RADS) 4. A radiologist also detected the lesion and assigned it PI-RADS 4 (arrow in A-C). A lesion in the right anterior transition zone (H) was detected by the DLA, which was assigned PI-RADS 4. The radiologist did not detect the lesion (arrow in E-G). Both lesions were confirmed as prostate cancer with Gleason grade group 2. Caption and image courtesy of RSNA.
Generative AI model validated in chest x-ray study
By Will Morton
A group in South Korea has validated a generative AI model that could reduce reading times and increase chest x-ray reporting accuracy.
March 11, 2025
An example that features an AI-generated report that identified “scattered pulmonary granulomatous calcifications.” In the first session, three of five readers specifically reported the presence of a nodule. Following the introduction of the AI-generated report, only one reader maintained the specific mention of a nodule, whereas the other four readers adapted their reports to include the AI-suggested terminology of “granulomatous calcifications.” AP = anterior-posterior. Image and caption courtesy of RSNA.
AI boosts identification of incident vertebral fractures on chest CT
By Kate Madden Yee
An AI algorithm that measures 3D whole thoracic vertebral bone mineral density on conventional chest CT can help predict incident vertebral fractures.
March 11, 2025
Back Spine Skeleton
PCCT reduces dose on lung cancer screening CT
By Kate Madden Yee
Photon-counting CT (PCCT) technology can yield significant dose reduction on CT lung cancer screening exams, researchers have reported.
March 10, 2025
Lung Ct Images
bpMRI, mpMRI show comparable NPV for prostate cancer
By Kate Madden Yee
Biparametric MRI (bpMRI) and multiparametric MRI (mpMRI) show similar negative predictive value (NPV) in identifying prostate cancer.
March 7, 2025
Prostate Cancer 3 D Rendering
Hormone therapy linked to tau accumulation in older women
By Will Morton
A PET study reveals that women over the age of 70 who took menopausal hormone therapy more than a decade prior have faster brain tau accumulation.
March 7, 2025
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FES-PET shows promise staging patients with low-grade breast cancer
By Will Morton
F-18 fluoroestradiol (FES) PET may improve staging of grade 1 or 2 estrogen receptor-positive breast cancer compared with F-18 FDG-PET.
March 4, 2025
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PCCT bests conventional CT for quantifying coronary plaque
By Kate Madden Yee
Photon-counting detector CT (PCCT) used for coronary CT angiography outperforms energy-integrating detector CT in quantifying coronary plaque.
March 4, 2025
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AI model aimed at adrenal glands, nodules could reduce workload by 10%
By Liz Carey
A future vision of AI in this context could entail analyzing adrenal nodules across multiple phases, extracting radiomic data, and providing a predictability score, study authors said.
March 4, 2025
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MRI, ultrasound have tradeoffs in diagnosing neuropathies
By Amerigo Allegretto
MRI and ultrasound have tradeoffs in diagnosing peripheral neuropathies of the upper extremity.
March 4, 2025
2025 03 04 Radiology Hrus Mrn Neuropathy Thumbnail
Opportunistic CT could boost osteoporosis screening by 113%
By Kate Madden Yee
Opportunistic CT imaging bone density screening could increase osteoporosis screening by 113% without additional imaging -- and save the healthcare enterprise almost $100 million annually.
March 4, 2025
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