TẮC RUỘT QUAI ĐÓNG: GIÁ TRỊ CHẨN ĐOÁN CỦA CẮT LỚP VI TÍNH ĐA DÃY

Abstract

Purpose: The aim of this study was to determine the value of multislice computed tomography (MSCT) in the diagnosis of closed – loop bowel obstruction (CLBO). Methods: 145 patients with bowel obstruction, including 40 patients with CLBOconfirmed by surgery, had preoperated contrast enhancement CT (CECT) at Viet Duc hospital from July 2019 to April 2021. Two blinded radiologists retrospectively reviewed CECT and evaluated 11 CT findings. The sensitivity, specificity, positive predictive value and negative predictive value of each finding was evaluated. Results: Diagnosis of CLBO, at least two transition points has sensitivityof 100%, specificity of 97.1%. Beak sign has  sensitivity of 87.5%, specificity of 66.7%. U/C shape configuration, dilated bowel loop in an abnormal position in the abdomen have specificities of 100% and sensitivities of 32.5% and 15%, respectively. Diagnosis of complications of intestinal ischemia, reduced bowel-wall enhancement has sensitivity of 62%, specificity of 94.7%; reduced enhancement of the mesenteric vein has sensitivity of 23.8%, specificity of 100%. Conclusion: In our prospective, at least two transition points, U/C shape configuration, dilated bowel loop in an abnormal position in the abdomenhave high values in the diagnosis of CLBO. Reduced enhancement of bowel wall and mesenteric vein were good indicators of intestinal ischemia.