螺旋CT胆道造影及其三维重建技术的临床应用

目的 探讨螺旋CT胆道造影(SCTC)及三维重建技术的临床应用价值。方法 23例临床拟诊胆系疾病患者做螺旋CT胆道造影，图像用3D最大强度投影(MIP)及表面遮盖法(SSD)后处理。结果 23例患者共有29个病变部位，与手术结果对照，SCTC对病变检查的敏感性、定位诊断和定性诊断率分别为93．1％、93．1％、89．6％。结论 SCTC三维立体成像能多角度、多方位观察病变及周围解剖关系，有利于术前准确定位，可以作为一种准确而无创性的胆道系统检查方法。

Clinical application of spiral CT cholangiography and 3-D reconstruction technique

Objective To evaluate the clinical applications of spira l CT cholangiography (SCTC) and 3-D reconstruction technique. Methods SCTC was p erformed in 23 cases initially diagnosed as bile duct disorders, in which MIP an d SSD reconstruction were performed. Results In total 29 lesions were found in 2 3 patients compared with surgical findings. In SCTC evaluations, the sensitivity rate, the accuracy of locating the lesions and qualitative diagnosis were 93.1 % ,93.1% , and 89.6% respectively. Conclusion SCTC and 3-D reconstruction technique can be used to observe the lesions and the adjacent anatomic structur es, helping pre-operative localization of lesions. This imaging can be recomme nded as a noninvasive and accurate modality in the diagnosis of biliary disorder s.