I suspect AI went that way in radiology not because of the chances of False Negatives, but because radiologist are entrenched in the system and will not yield an insanely lucrative stream of revenue.
Medical Scans are reviewed abroad. This practice started in Dentistry in the 90s/early 2000s but expanded to Radiological scans as well. At this point most CT, MRI, and XRay scans in the US have a first pass analysis done by doctors in India+Pakistan.
Medical billing has also been offshored to India+Pakistan btw
In general, a lot of back office Dental+Medical functions were outsourced in the 2000s+2010s.