肺癌合并上腔静脉综合征介入治疗前后CT评价

目的探讨多排螺旋CT多种后处理技术评价肺癌合并上腔静脉综合征介入治疗前后上腔静脉压迫情况的价值。方法对36例肺癌合并上腔静脉综合征患者分别于上腔静脉内支架植入前后行螺旋CT检查，利用多种后处理技术显示上腔静脉及其临近结构，评价上腔静脉的阻塞位置、范围、程度以及侧支循环血管开放情况；判断血管内支架的管径、开放性、是否有再狭窄．侧支循环血管是否消失，以及并发症等。结果本组病例中上腔静脉管腔部分阻塞32例，完全闭塞4例；介入治疗后2周行强化CT检查，36例患者支架植入位置恰当，上腔静脉均开通呈扩张状态，支架无移位，未出现再狭窄，侧支循环血管消失或管腔管径缩小．未见严重并发症。结论多排螺旋CT强化检查之后处理技术可以多平面、多角度显示上腔静脉受压、狭窄及闭塞改变，观察上腔静脉以及邻近结构的全貌，并可以进行任意方向旋转观察，为治疗及疗效评价提供详尽的资料。

Evaluation of Multidetector CT Findings of Pre- and Post- Endovascular Stent-graft Placement in Superior Vena Cava Syndrome Secondary to Pulmonary Carcinoma

Objective To investigate the value of various postprocessing techniques in the evaluation of multidetector CT findings of pre- and post-endovascular stent-graft placement in superior vena cava syndrome secondary to pulmonary carcinoma.Methods Multidetector CT scanning was performed for 36 patients with superior vena cava syndrome due to pulmonary carcinoma pre- and postendovascular stent-graft placement.The ability of various postprocessing techniques permit to show the superior vena cava and its adja-cent ...