CT colonography features of sigmoid diverticular disease

OBJECTIVE: The objective of this study is to assess the sigmoid distensibility during CT colonography (CTC) in patients with diverticular disease. METHODS: Consecutive patients without a history of pelvic radiation or neoplasms underwent 150 CTC. Three radiologists in consensus evaluated axial images for colonic distention, luminal diameters (mm), diverticula, and muscular thickening. RESULTS: The minimum colon diameter in patients with muscular thickening was significantly smaller, irrespective of the presence of diverticula (P=.009). CONCLUSION: Muscular thickening with diverticular disease was associated with significantly less sigmoid colon distension.