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Gus Iversen, Editor in Chief | November 20, 2025
Mosaic Clinical Technologies, the technology arm of Radiology Partners, has acquired Cognita Imaging, an AI startup focused on radiology-specific vision language models.
The deal is aimed at accelerating Mosaic’s efforts to integrate artificial intelligence across radiology workflows amid rising demand for imaging services and a shortage of available radiologists.
Cognita will operate as an independent business unit under Mosaic, continuing to develop its AI models while gaining access to broader clinical data, capital, and infrastructure for scaling and regulatory approvals. The company is currently conducting large-scale, IRB-approved trials to support future FDA authorization.
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Cognita’s models power Mosaic Drafting, an AI tool that analyzes X-rays and head CTs to generate preliminary reads for radiologist review. In early validation across more than 95,000 studies and 100 physicians, the technology demonstrated reductions in major diagnostic errors, increased detection of critical conditions, and time savings for radiologists. According to the companies, the AI-assisted reads improved detection rates by up to 52% and reduced significant diagnostic errors up to fourfold compared to radiologist-only interpretations.
“Cognita’s foundation models integrated with Mosaic’s platform create a human-plus-AI framework where technology not only expands radiologist capacity but also materially enhances clinical performance,” said Dr. Nina Kottler, chief medical AI officer at Mosaic.
The acquisition is positioned as a response to what Mosaic describes as a “severe global radiology capacity crisis,” exacerbated by workforce attrition and limited residency growth. Radiology Partners’ national scale, covering over 55 million annual imaging studies and more than 4,000 radiologists, offers a substantial data and deployment platform for AI development.
Cognita was cofounded by Drs. Louis Blankemeier, Zhihong Chen and Akshay Chaudhari. Its team is expected to grow as Mosaic expands the commercial rollout of MosaicOS, its enterprise imaging platform, with some features still pending FDA clearance.
