螺旋CT在腔内隔绝术治疗腹主动脉瘤术前评估中的价值  

Assessment of value of spiral CT in preoperative evaluation of endovascular graft exclusion for abdominal aortic aneurysm

作　　者：景在平[1] 赵君[1] 朱文江[1] 箫毅[1] 

机构地区：[1]第二军医大学附属长海医院血管外科

出　　处：《中华放射学杂志》1998年第12期841-844,共4页Chinese Journal of Radiology

基　　金：上海市卫生系统百人计划基金

摘　　要：目的探讨螺旋ＣＴ（ｓｐｉｒａｌＣＴ，ＳＣＴ）在腔内隔绝术（ＥＶＧＥ）治疗腹主动脉瘤（ＡＡＡ）术前评估中的价值。方法以ＳＣＴ扫描了４１例ＡＡＡ患者，资料经计算机处理进行ＳＣＴ图像重建（ＣＴＡ），所用技术主要为表面阴影遮盖技术（ＳＳＤ）、最大信号强度投影（ＭＩＰ）、多平面重建（ＭＰＲ）及曲面重建（ＣＰＲ）技术，少数夹层动脉瘤应用模拟的内窥镜技术。测量远近端瘤颈长度及直径，瘤体的大小、形态及与分支动脉的关系，双髂动脉形态、口径及肾动脉开口到髂动脉分叉水平的自然长度。根据ＥＶＧＥ手术适应证的要求，选择９例患者行ＥＶＧＥ。结果据上述参数选定移植物的规格、型号，经术中证实与需求相符。结论ＣＴＡ图像质量高，无创、快速、准确，可获得ＥＶＧＥ术前评估所需全部参数。Purpose To assess the value of spiral CT( SCT) in preoperative evaluaton of endovascular graft exclusion( EVGE) for abdominal aortic aneurysm(AAA). Methods 41 case with AAA received SCT scanning. Two and three dimensional images were reconstructed, utilizing the shaded surface display(SSD), maximum intensity Projection(MIP) and multiplanar reformation(MPR). Informations were obtained regarding the size and features of AAA, length and diameters of aneurysm's neck, status of the branches of aorta, etc. Results Nine patients had spinal CT study prior EVGE procedure and the grafts selected according to the parameters obtained by SCT matched perfectly to the needs of deployment. Conclusion CTA provides high quality images. IT is a high speed and non invasive method which can provide three dimensional images of AAA and its main branches and all the parameters needed in EVGE.

关 键 词：腹主动脉瘤 CT 介入放射学 

分 类 号：R543.160.4[医药卫生—心血管疾病] R730.44[医药卫生—内科学]