Conservative AI for Safety-Sensitive Medical Image Restoration: Residual-Bounded CT-CTA Enhancement for Intracranial Aneurysm-Relevant Signal Recovery

In three lines2.5D residual-bounded image restoration framework for enhancing intracranial CT/CTA without uncontrolled modification of clinically sensitive regions. Model adds learned residual via edit-control map limiting magnitude and spatial extent. On 50 out-of-distribution cases: PSNR 37.51 dB, iatrogenic-edit rate 4.0%, net positive in 85.4% of 1,000 Monte Carlo runs.

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