Is CT colonography accurate?
ACRIN 6664: National CTC Trial (N Engl J Med 2008; 359:1207-1217)
- Multi-institutional (15 sites)-academic and private
- Feb 2005-Dec 2006
- ≥50 years asx, screening asymptomatic (without symptoms) patients
- 15 patients, 2531 patients
- Radiologist certification to read cases:
- >500 cases already: 90% accuracy
- <500 cases: 1 day training course +90% accuracy
- Otherwise additional 20 cases for testing