多层螺旋CT血管造影对颈部动脉血管病变的诊断价值

The clinical value of multislice spiral CT angiography in detecting the cervical arteries lesions

目的评价16排螺旋CT血管造影(MSCTA)对颈部动脉血管病变的诊断价值。方法MSCTA检查35例,其中20例行数字减影血管造影(DSA)检查。MSCTA检查原始数据经工作站进行三维重建处理,即多层面重建(MPR)、表面遮盖三维显示(SSD)、容积显示(VR)和薄层块最大密度投影(MIP),分析不同重建方法对颈部血管的显示能力,并与DSA对照分析。结果35例MSCTA显示正常血管76支,狭窄血管64支,其中20例DSA结果与之比较,二者对颈部血管狭窄的显示差异无显著性意义(P>0.05)。结论MSCTA可作为颈部动脉血管性病变的首选无创性检查方法,可基本取代DSA检查。

Objective To evaluate the clinical value of multi-slice CT angiography（MSCTA） in detecting the cervical arteries lesions. Methods 35 patients underwent MSCTA, among them, 20 patients received DSA. The original data of MSCTA were reconstructed by maximum intensity projection （MIP） , volume rending （VR）and surface shadow display. The images obtained by different reconstructed Methods were compared. Results 76 normal vessels and 64 stenotic vessels were demonstrated by MSCTA. There was no significant statistical difference between CTA and DSA in detecting stenotic vessels. Conclusions As a noninvasive technique, MSCTA plays an important role in detecting cervical artery diseases. The DSA in some extent can be replaced by MSCTA.