Budd-Chiari综合征:多层螺旋CT诊断的扫描技术

Scanning techniques of spiral CT for diagnosis of Budd-Chiari syndrome

目的 探讨多层螺旋CT在Budd-Chiari综合征（BCS）诊断中的扫描方法与技术。方法 使用Philips Brilliance6排螺旋CT扫描机，扫描层厚3．0～5．0mm，螺距1．3，对14例BCS患者进行平扫、动脉期、门静脉期及延迟期扫描。其结果与下腔静脉造影和肝静脉造影结果进行比较。结果 14例成像均满意，不但清晰显示了肝脏脾脏的病变，而且也清晰显示了肝静脉、副肝静脉、下腔静脉以及侧支循环血管情况。与数字减影血管造影（DSA）相比，下腔静脉病变的准确性为100％，主肝静脉病变的准确率为97．62％，副肝静脉的准确率为85．71％。结论 BCS病变显示依赖于检查前患者的准备、扫描时间的把握、扫描参数的合理性和扫描方法的正确性。

Objective To study the method and skill of multislice CT （MSCT） in Budd-Chiari syndrome. Methods CT scans including three phases and delay scan were performed on 14 patients with Philips Brilliance 6 spiral CT, using 3.0- 5.0 mm slice thickness at pitch 1.3, and 3.0-5.0 mm reconstruction interval in 14 cases. The findings were compared with these of venography. Results Images were acquired satisfactoring in all cases, which showed the conditions of liver and spleen and the vessel condition of hepatic venous, accessary hepatic venous, inferior vena cava and collateral drainage veins. To compare with DSA, the accuracy was 100% in showing inferior vena cava lesions by MSCT, that was 97.62% in showing hepatic venous lesions, that was 85.71% in showing accessary hepatic venous. Conclusion High quality imaging on BCS is depended on the accuracy of scanning opportunity after injection of contrast material and the suitability of scanning parameter, precise scan method and the skill of operator.