Biotech Values

[urche]

radiation with virtual colonoscopy

Question for Bob or xrymd: I think I heard the radiation delivered with standard CT of the abdomen and pelvis is on the order of equivalent to 100 chest xrays. If so, it would be hard to make a case justifying such a test for screening without a lot of informed thought. Do you know how much radiation is needed for virtual colonoscopy compared to a standard CT of abdomen and pelvis? Has anyone run the data to predict how many cancers would be CAUSED by regular virtual colonoscopy screening?