Improving practice in radiology: a quality-improvement project examining CT colonography patient dose and scanning technique

•Notable variations in regional CTC scanning technique identified. •Proposed regional typical doses for two CTC examinations. •Typical doses much lower than current UK dose levels. AIM To audit scanning technique and patient doses for computed tomography (CT) colonography (CTC) examinations in a large UK region and to identify opportunities for quality improvement. MATERIALS AND METHODS Scanning technique and patient dose data were gathered for...