Women's imaging firm Hologic has made the first installation in California of its Selenia Dimensions 3D digital breast tomosynthesis system.
The installation is at Hoag Memorial Hospital Presbyterian's Hoag Breast Care Center in Newport Beach, CA.
Hologic received 510(k) clearance for Selenia Dimensions from the U.S. Food and Drug Administration (FDA) in February. The technology is designed to produce 3D images of the inner architecture of the breast without distortion caused by tissue shadowing or density. It uses a panning gantry head that moves in an arc around the patient, collecting multiple tomographic slices that can be reconstructed into 3D volumes.









![A normal mammogram confirmed by three-year radiologic follow-up illustrates reader-marked regions of interest (ROIs) during (A) unaided (round 1) and (B) artificial intelligence (AI)–assisted (round 2) reading. Each colored dot represents an ROI for recall by a human reader. Readers could mark more than one ROI per case, represented by multiple dots of the same color. During AI-assisted reading, the AI system displayed three visible prompts: two with suspicion of malignancy scores of 35% (left mediolateral oblique [L MLO] and craniocaudal [L CC]) and one with a suspicion of malignancy score of 10% (right craniocaudal [R CC]), shown as polygonal overlays. Without AI, six of 10 readers (60%) marked a false-positive ROI. With AI assistance, this fell to two of 10 (20%). R MLO = right mediolateral oblique.](https://img.auntminnie.com/mindful/smg/workspaces/default/uploads/2026/07/2026-07-14-radiology-mammogram-ai-auto-bias.H0bYO8QlWs.jpg?auto=format%2Ccompress&fit=crop&h=112&q=70&w=112)






