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The AGA Institute Task Force on CT Colonography offers the following recommendations. The full recommendations are available in the September issue of Gastroenterology.

Patient Care

• Any polyp > 6 mm in size (i.e., widest diameter) should be reported and the patient referred for consideration of endoscopic polypectomy.

• Patients with three or more polyps of any size in the setting of high diagnostic confidence should be referred for consideration of endoscopic polypectomy.

• The appropriate clinical management of patients with one to two lesions no greater than 5 mm in diameter is unknown. In the absence of data, the follow-up interval recommended for these patients should be based on individual characteristics of the patient and procedure.

Quality Control and Safety

• Practices offering CT colonography should establish a technical quality control program.

• Endoscopic results in patients referred from CT colonography to endoscopy, including true positive and false negative rates, should be tracked.

Regulatory Issues

• Split interpretations of CT colonography are feasible.

• Gastroenterologists and radiologists performing split interpretations should dictate and sign separate procedure reports that clearly state the specific services they performed related to CT colonography.

Exam and Equipment Specifications

• CT colonography should be performed using multidetector CT protocols with high spatial resolution.

• Computer workstations for dedicated CT colonography interpretation should permit 2D and 3D
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