The American College of Radiology’s CT Colonography Registry (CTC) helps participants promote quality of care for patients CTC Logoundergoing CT Colonography.  By submitting data about their CT colonography patients and procedures, participants can get feedback by facility and by physician, as well as benchmarks from all registry participants, for both process and outcome measures, including

  • Rate of adequacy of diagnostic and screening CTC examination

  • Rate of colonic perforation

  • True positive rate


CTC Physician Report - Summary Report


In addition to comparison reports, CTC data can also be used to calculate QCDR Measures, specially defined by ACR to help radiologists participate in the CMS MIPS program. And, participating in CTC can help participants fulfill their American Board of Radiology Part IV Maintenance of Certification (MOC) requirements.


As part of the NRDR suite of registries CTC utilizes the same Patient, Physician and User dictionaries as other NRDR registries so that information need only be entered once, regardless of the number of registries in which a facility participates.


The annual participation fee for CTC is based on the number of radiologists at a facility performing CT colonography procedures and the number of sites included in that facility. Fees for Diagnostic Imaging Center of Excellence (DICOE) facilities are waived for the first three years. See  Registration and Participation Fees for details.