2 ms·
I've wondered how much the average X-ray dosage dropped since they stopped using film and switched to detector-based imaging. Anyone know?
by SoftTalker 1y ago
I've wondered how much the average X-ray dosage dropped since they stopped using film and switched to detector-based imaging. Anyone know?
- scythe 1y agoYou can compare diagnostic reference levels (DRLs) from different years for the same exam; these correspond to the 75th percentile patient dose for a particular imaging study. It can be a little annoying to find older DRLs (I just tried). NCRP 172 (published 2015) provides a direct comparison of digital to film for some examinations. For upper GI fluoroscopy without oral contrast the DRL for film is 3.9 mSv and for digital is 1.5 mSv. I think this is roughly typical.