Quality Indicators for CT Colonography

Computed tomography (CT) colonography (CTC) provides a minimally invasive examination for the detection of colorectal neoplasia. After the first validation screening trials in early 2000, this technique has begun to transition from academic centers to community practice; however, the lack of reimbursement remains a current barrier. This chapter discusses the recommended, standardized techniques for performing and reporting CTC based on the American College of Radiology (ACR) practice parameters. These guidelines discuss current indications and contraindications, qualifications of interpreting physicians, specification of the examination techniques including low-dose techniques and stool tagging, and communication of results using the CTC reporting and data system (C-RADS) reporting structure for colonic and extra-colonic findings. In addition, this chapter introduces the development of CTC quality metrics, which include both process and outcome measures. The start of the ACR data registry for instituting a cyclical quality improvement program into clinical practice is also discussed.