Comparative study of multi-slice spiral computed tomography angiography with DSA in lower extremity arteriosclerosis obliterans
10.3969/j.issn.1002-1671.2014.08.010
- VernacularTitle:MSCTA 与 DSA 对下肢动脉硬化闭塞症诊断的对比研究
- Author:
Dengpan CAO
;
Shaoqiang HE
;
Hong CHEN
;
Darong CHEN
;
Jinping LIN
- Publication Type:Journal Article
- Keywords:
multi-slice spiral CT angiography;
digital subtraction angiography;
arteriosclerosis obliterans;
lower extremities ar-tery
- From:
Journal of Practical Radiology
2014;(8):1285-1289
- CountryChina
- Language:Chinese
-
Abstract:
Objective To discuss the value of multi-slice spiral CT angiography (MSCTA)and digital subtraction angiography (DSA)in lower extremity arteriosclerosis obliterans.Methods MSCTA and DSA of lower extremity arteries were performed in 41 patients with lower extremity arteriosclerosis obliterans sequentially.The interval of these two examinations was no more than 2 weeks.DSA served as the reference standard and compared with MSCTA in terms of grading of stenoocclusive lesions,visualization of collaterals in lower extremity arteries.Results No significant differences of grading of stenoocclusive lesions,visualization of col-laterals were observed between MCTA and DSA in lower extremity arteries.Compared with the results of DSA,the sensitivity,spe-cificity,accuracy,positive and negative predictive value of MSCTA in the detection of arterial stenosis (≥ 50%)were 97.2%, 98.2%,93.8%,94.6%,98.2%,respectively.Conclusion MSCTA shows relatively high sensitivity and specificity in the diagnosis of lower extremity arteriosclerosis obliterans,can provide effective guidance of planning treatment in lower extremity arteriosclerosis obliterans.
