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Issue #45
May 26, 2026

Breast AI targets biopsy decisions across 27,048 patients

PLUS: Cardiac MRI AI learns from reports, not manual labels

RadAI Slice

RadAI Slice

Weekly Updates in Radiology AI

Good morning, there. BINDS achieved AUC 0.973 and could reduce benign biopsies by 32.4%.

I see this as a meaningful test of multimodal AI because it maps to how breast imaging escalates from ultrasound and mammography to MRI. The biopsy reduction claim matters only if local validation protects sensitivity and equity.

How much validation would you need before using AI to defer biopsy?


Here's what you need to know about Radiology AI last week:

  • Multimodal breast AI targets biopsy decisions

  • Cardiac MRI model learns from reports, not manual labels

  • AI speeds high risk mammography follow up

  • NCCT AI lifts LVO reader sensitivity

  • Plus: 2 newly released datasets, 6 FDA approved devices & 4 new papers.

LATEST DEVELOPMENTS

🎗️ Multimodal breast AI targets biopsy decisions

RadAI Slice: A large multimodal breast AI study focused on reducing unnecessary biopsy while preserving diagnosis.

The details:

  • Validated on 27048 participants across 8 centers

  • Used ultrasound, mammography, MRI, and clinical data

  • Reported AUC 0.973 for breast cancer risk assessment

  • Could reduce benign biopsies by up to 32.4%

  • Supported flexible modality combinations for different settings

Key takeaway: This feels clinically relevant because it targets biopsy decisions, not just image labels, but still needs prospective site level validation.

🫀 Cardiac MRI model learns from reports, not manual labels

RadAI Slice: This is notable because the training method could be more scalable than classic manual annotation.

The details:

  • Model trained on more than 13000 cardiac MRI studies

  • Used report text rather than manual image labels

  • Performance reached up to 99% in selected tasks

  • Testing across multiple institutions suggested generalizability

  • Supported text-based search for cardiac MRI case retrieval

Key takeaway: For cardiac imaging teams, this suggests a practical path to specialty models built from existing report archives rather than costly annotation projects.

⚡ AI speeds high risk mammography follow up

RadAI Slice: This prospective deployment connects breast AI risk scoring with actual care delivery timelines.

The details:

  • 4145 screening mammograms were scored in real time with Mirai

  • Top 10% risk patients were flagged for expedited care

  • 94% received immediate reads and 26 had same day diagnostics

  • Timelines fell 99.1% for results and diagnostic evaluation

  • Cancer detection reached 60 per 1000 in expedited patients

Key takeaway: The operational gain is the story here. AI moved from risk prediction to same day workflow triage in a safety net setting.

🧠 NCCT AI lifts LVO reader sensitivity

RadAI Slice: This stroke paper stands out because it tests AI on NCCT across countries and readers.

The details:

  • Validated on 723 Korean and 240 US NCCT cases

  • Standalone AUC was 0.963 in Korea and 0.899 in the US

  • AI assistance raised pooled reader AUC from 0.718 to 0.852

  • Sensitivity rose from 46.6% to 63.7%

  • Specificity rose from 91.9% to 94.9%

Key takeaway: NCCT based LVO AI could support faster stroke triage, but the reader study frames it as assistance rather than replacement.

NEW DATASETS

BIND (2026)

Modality: MRI, CT | Focus: Brain, CNS | Task: Classification, multimodal learning

  • Size: 1,791,885 scans from 38,942 patients. Mostly MRI, with CT, PET, and SPECT.

  • Annotations: Full-text imaging reports. LLM-extracted clinical categories and findings. MRI sequence labels. No manual segmentations.

  • Institutions: Mass General Brigham, Stanford University

  • Availability:

    restricted via BDSP

  • Highlight: Large clinical neuroimaging dataset linked to EEG and PSG records, with LLM-derived report metadata.

Longitudinal-CT (2025)

Modality: CT | Focus: Whole-body; melanoma metastases | Task: Lesion segmentation; temporal tracking

  • Size: 600 CT studies from 300 patients. Each patient has baseline and follow-up scans.

  • Annotations: 7,182 expert manual tumor lesion segmentations. Labels include site, volume, and longitudinal correspondence/evolution.

  • Institutions: University Hospital Tübingen, Fraunhofer MEVIS, et al.

  • Availability:

    Public: FDAT DOI

  • Highlight: Paired whole-body CT with exhaustive lesion masks and explicit lesion tracking across therapy timepoints.

QUICK HITS

🏛️ FDA Clearances

  • K252954 - MammoSightAI received 510k clearance for lesion prioritization support in medical image review.

  • K252558 - Philips Lumify received 510k clearance for portable diagnostic ultrasound imaging with Doppler support.

  • K261132 - Healium Intelliscan LX192LC received 510k clearance for pulsed Doppler ultrasound imaging.

  • K253837 - SPECTRALIS HRA plus OCT received 510k clearance for high resolution retinal imaging workflows.

  • K260321 - HipGuide received 510k clearance as an image processing system for hip related radiology applications.

  • K260716 - Neowise received 510k clearance as an image processing system for radiology visualization support.

📄 Fresh Papers

  • doi:10.1148/ryai.250914 - DL single breath hold liver MRI synthesized full sequences from precontrast T1 and preserved HCC diagnosis performance.

  • doi:10.1038/s41467-026-73170-5 - BIRD breast ultrasound AI was applied in 6817 screening patients across 107 hospitals with kappa 0.702.

  • doi:10.1007/s00330-026-12610-8 - AI volumetric assessment of colorectal liver metastases added prognostic value beyond RECIST in liver only disease.

  • doi:10.1093/bjr/tqag111 - An NHS multicenter evaluation of AI organ at risk contouring included 626 patients across 8 radiotherapy departments.

  • Browse 191 new radiology AI studies from last week.

📰 Everything else in Radiology AI last week

That's it for today!

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