【摘要】 目的探讨64层螺旋CT后处理重建技术在梗阻性黄疸诊断中的临床应用价值。方法回顾性分析43例由手术病理证实的梗阻性黄疸患者的影像资料,包括螺旋CT常规扫描、MPR及CPR技术重建图像对梗阻部位及性质进行分析,并与手术、病理对照。结果 43例梗阻性黄疸中,胆总管结石25例,胆管癌12例,胰腺癌2例,胆总管炎性狭窄4例。CT常规扫描结合MPR、CPR图像诊断准确率为90%,良、恶性梗阻的鉴别诊断准确率为93%。结论多层螺旋CT常规扫描图像结合MPR和CPR图像后处理技术,能直观立体地显示胆道梗阻的部位和程度,直观地显示病变的范围及其与临近结构的关系,对胆道系统梗阻的定位、定性具有较高的诊断价值。更多还原

【Abstract】 Objective To assess the value of 64-slice spiral CT with postprocessing reconstruction techniques in diagnosing obstructive jaundice.Methods 43 patients with obstructive jaundice underwent 64-slice sprial CT scanning,the source images were post processed by using MPR and CPR.All the cases were clinically confirmed.The CT findings about obstructive locations and features were restrospectively reviewed by comparing with surgical and pathological findings.Results The study demonstrated that there were 25 choledocholithiasis,12 cholangiocarcinomas.2 pancreatic carcinomas and 4 choledochal inflammatory stenosis in 43 patients.The diagnostic accuracy of conventional axial CT images combined with MPR and CPR for obstructive lesions was 90%.The accuracy of differential diagnosis between benign and malignant lesions was 93%.Conclusion The combination of conventional axial CT images with MPR and CPR could directly and stereoscopically show the obstructive location,degree,involved extent and relationship with neighbour structures so that it has important significance for the locative and qualitative diagnosis of obstructive jaundice.更多还原