十二指肠憩室的螺旋CT诊断

目的:分析十二指肠憩室的螺旋CT表现,探讨螺旋CT对该病的诊断价值.方法:分析25例(27个十二指肠憩室)患者十二指肠憩室及其并发症的螺旋CT表现,所有病例均经胃十二指肠造影检查确诊.结果:27个憩室中1个憩室小于1.0 cm,其余26个憩室均大于1.0 cm,其中5例大于2.0 cm,1例超过5.0 cm.憩室表现为胰头右后方圆形或半圆形含气囊袋影,可有液平;服用阳性对比剂者均能见阳性对比剂进入憩室.部分憩室内可见食物残渣影.憩室与胰头交界部边界锐利,合并十二指肠憩室炎者,平扫边缘模糊.结论:上腹部螺旋CT扫描应用广泛,虽对十二指肠憩室的检出率不高,但对巨大憩室及并发症的发现有一定意义.

Evaluation of Spiral CT in the Diagnosis of Duodenal Diverticulum

Objective:To Analyzed the spiral CT findings and to evaluate its value in the diagnosis of duodenal diverticulum.Methods:Spiral CT was performed in 25 patients,of which,27 duodenal diverticula were detected by upper gastro-intestinal barium examination.The CT features of duodenal diverticulum as well as its complications were analyzed.Results:Of the 27 cases with duodenal diverticulum,apart from 1 lesion with its diameter less than 1cm and another one bigger than 5cm respectively,all of the rest had their diameter exceeded 1cm (>2cm,n=5).The lesions located posterior and lateral to the head of pancreas,ciucular or semicircular in shape,containing air bubble of air-fluid level.Contrast medium or food element could be found within the diverticula.The boundary of diveticulum and pancreas could be clearly delineated.On plain CT,the margin was blurred when diverticulitis was presented. Conclusion:Large duodenum diverticulum and its complication could be revealed by spiral CT of upper abdomen.