Objective: To analyze the diagnostic value of multi-slice CT in the diagnosis of trauma patients. Methods: A retrospective analysis was performed on 15 cases of emergency patients with critical disease after trauma, and the data of emergency plain and enhanced CT were retrospectively analyzed. Results: 15 cases of acute trauma patients, 8 cases of pelvic fractures(CT contrast-enhanced A. with arterial hemorrhage: 1 cases of left common iliac artery rupture, 5 cases with unilateral internal iliac artery bran...