OK, but you'd be delaying scans by having to wait for the MRI, which takes significantly longer to setup and administer as well as being much more expensive (which would further reduce access).
Also (and this is according to the XKCD chart) you'd need 50 CT head scans before you'd hit the clear statistical cancer risk.
But it's not like the whole population gets a CT scan every year, or even during their entire life. If you need one anyways, there's probably a more pressing issue that 1/50th the clearly statistical risk level.
Also (and this is according to the XKCD chart) you'd need 50 CT head scans before you'd hit the clear statistical cancer risk.
But it's not like the whole population gets a CT scan every year, or even during their entire life. If you need one anyways, there's probably a more pressing issue that 1/50th the clearly statistical risk level.