Computerized tomography of colonic diverticulitis.

Area of Science:

• Radiology
• Gastroenterology
• Surgical Pathology

Background:

• Acute diverticulitis is a common cause of abdominal pain, presenting diagnostic challenges.
• Diverticulosis affects a significant portion of the population, with a notable percentage developing acute diverticulitis requiring intervention.
• Distinguishing diverticulosis from acute diverticulitis and assessing the inflammatory extent is crucial for patient management.

Purpose of the Study:

• To compare the diagnostic value of computerized tomography (CT) and contrast enema (CE) in patients with acute diverticulitis.
• To evaluate the effectiveness of each imaging modality in assessing the extent of pericolic inflammation.
• To discuss the differential diagnoses associated with CT findings in acute diverticulitis.

Main Methods:

• Review of existing literature comparing CT and CE for acute diverticulitis.
• Analysis of imaging features indicative of diverticulitis, including colonic wall thickening and pericolic infiltration.
• Discussion of the limitations of CE in evaluating the full extent of inflammation.

Main Results:

• CT is more effective than CE in demonstrating the extent of pericolic inflammation, which is often underestimated by CE.
• CT exhibits high sensitivity for detecting infiltration and colonic wall thickening in acute diverticulitis.
• While sensitive, CT findings such as infiltration and wall thickening are not pathognomonic and require careful interpretation.

Conclusions:

• CT is the preferred imaging modality for evaluating acute diverticulitis due to its superior ability to assess inflammatory extent.
• CE is limited in its capacity to fully evaluate the inflammatory process associated with diverticulitis.
• Further consideration of differential diagnoses is necessary when interpreting CT findings in suspected acute diverticulitis.