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A2Z Radiology Raises $4.5M for CT Triage

In December 2025, Boston-based medical imaging startup A2Z Radiology raised $4.5 million in a Seed funding round. The round was led by Khosla Ventures and SeaX Ventures.

Founded by CEO Samir Rajpurkar and co-founder Pranav Rajpurkar, the company also announced a major regulatory milestone: securing FDA clearance for its autonomous triage system.

A2Z Radiology addresses the critical backlog in emergency rooms by automating the analysis of abdomen and pelvis CT scans. Unlike single-condition tools, its “Unified Triage” platform can simultaneously detect multiple urgent findings—such as fractures or internal bleeding—immediately after the scan is taken. This allows radiologists to prioritize life-threatening cases instantly, significantly reducing turnaround times in trauma centers.

The new capital will be used to deploy its FDA-cleared solution in US hospitals and expand its R&D into chest and brain imaging.

Key Details

  • Company: A2Z Radiology
  • Funding: $4.5M Seed
  • Headquarters: Boston, MA
  • Lead Investors: Khosla Ventures, SeaX Ventures
  • Founders: Samir Rajpurkar (CEO), Pranav Rajpurkar
  • Key Milestone: FDA Clearance for Abdomen/Pelvis CT

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