colon cancer is one of the most preventable killers. some cancers srpead to quickly for adequate screening i.e. ovarian and small cell lung ca. mammography is a good but not perfect screen for breast ca, pap smears are the most effective screen( cervical cancer) .
problem with colon screening is that many people will not get colonoscopy- it is not pleasant, but there is a new screen -ct colonography that is much more palatable.
Is the CT colonography as effective as colonoscopy at spotting and evaluating polyps? Are the preps similar?