Clinical Study on MDCT Values of Intestinal Wall in Traumatic Mesenteric Laceration withIntestinal Necrosis

Purpose: To conduct a clinical study on the MDCT values of intestinal wall in traumaticmesenteric laceration with intestinal necrosis and provide guidance for clinical diagnosis andtreatment. Methods: A retrospective collection was made of 76 cases of mesenteric lacerationconfirmed by surgery from September 2019 to February 2025. Among them, 10 cases underwentemergency abdominal enhanced CT examination and were confirmed by pathology and surgery tohave mesenteric laceration with intestinal necrosis. The CT values of normal and necroticintestinal walls in plain scan and venous phase were measured. Independent sample t-test, pairedt-test, binary logistic regression analysis and receiver operating characteristic (ROC) curveanalysis were performed for evaluation. Results: There was a statistically significant difference in CT values between necrotic and normalintestinal walls in the venous phase of abdominal enhanced CT (P < 0.05); there was a statisticallysignificant difference in CT values between normal intestinal walls in plain scan and venous phase(P < 0.05); there was no statistically significant difference in CT values between necrotic intestinalwalls in plain scan and venous phase (P > 0.05). The ROC curve analysis results showed 0.960,significance 0.001, sensitivity 90%, specificity 90%, and the optimal cut-off value was 78.75. Conclusion: Emergency abdominal enhanced CT has a high predictive value for intestinalnecrosis after blunt abdominal mesenteric laceration and is of great significance for theformulation of clinical treatment plans.