CT scan usage increased from 83% to 92.6% over time. About 29.8% of patients with diverticulitis required hospital admission, with admission rates declining from 33.6% to 27.7% over time.

A computed tomography (CT) scan of the abdomen can assess for severity of disease. Once the acute phase has passed, the patient should see a gastroenterologist for follow-up with colonoscopy or ...