摘要
目的:探讨多层螺旋CT血管成像(MSCTA)在诊断下肢闭塞性动脉硬化症(ASO)中的应用价值。方法:对临床确诊下肢动脉病变的60例患者,分别行MSCTA下肢动脉增强扫描和DSA检查,应用VR、MIP、SSD等方法进行影像学诊断,比较各重建方法的诊断差异。结果:①VR、MIP、SSD的敏感度分别为81.2%、100%、100%,特异度分别为93.2%、97.4%、97.4%,准确度分别为91.1%、98.3%和98.3%。②DSA和MSCTA诊断下肢闭塞性动脉硬化性疾病无明显差别(P>0.05)。结论:重建方法中MIP、SSD诊断ASO的敏感度和特异度较高;在诊断ASO时,MSCTA是一种有效的检查方法,具有和DSA相当的效能。
Objective：To evaluate the diagnostic value of multislice helical CT angiography （MSCTA） in arteriosclerotic occlusive disease （ASO） of lower limb.Methods：60 ASO patients were administraed MSCTA and DSA. VR, MIP and SSD were used to diagnose and compare differences between each reconstruction method.Results： ①The susceptibility of VR, MIP and SSD were repectively 81.2%, 100% and 100%; specificity were 93.2%, 97.4% and 97.4%; accuracy were 91.1%, 98.3% and 98.3%. Gin diagnosing ASO, there had no obvious differences betwwen DSA and MSCTA （P〉0.05）.Condusions：The susceptibility and specificity of MIP and SSD are fairly high in diagnosing ASO. In diagnosing ASO, MSCTA is an effective method and has corresponding function with DSA.
出处
《承德医学院学报》
2009年第3期256-259,共4页
Journal of Chengde Medical University
关键词
多层螺旋CT血管成像
闭塞性动脉硬化症
下肢动脉
图像处理
Multi-slice spiral CT angiography
Arteriosclerotic occlusive disease
Arteries of lower limb
Image processing
