Member Login JAMA Study Touts Benefits of CTC in Higher Risk Patients CT colonographyCTC) is an alternative to colonoscopy that is less invasive, better tolerated and provides good diagnostic accuracy for patients who have an increased risk or familial history of colorectal cancer, according to a study in the June 17 issue of the Journal of the American Medical Association. To read the entire article from HealthImaging.com, please click here. Terms of Use Privacy Statement HIPAA Privacy Practices Careers Site Map Copyright © 2010 by ProScan Imaging