To evaluate the application value of 2 5 6-slice spiral CT angiography in lower extremity arteriosclerosis obliterans patients after grafts operation
10.3969/j.issn.1002-1671.2014.04.014
- VernacularTitle:评价256层螺旋CT血管造影对下肢动脉硬化闭塞症患者桥血管术后的应用价值
- Author:
Weibin CHEN
;
Li FENG
;
Fengling GONG
;
Huiying ZHANG
;
Zhilan LIU
- Publication Type:Journal Article
- Keywords:
lower extremity artery;
lower extremity arterial bypass grafting;
computed tomography;
angiography
- From:
Journal of Practical Radiology
2014;(4):600-602,634
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the application value of 256 slice spiral CT angiography (CTA)in the bridge vessels lesions af-ter grafts operation in lower extremity arteriosclerosis obliterans patients.Methods Taken DSA as the gold standard,using 256 slices spiral CTA to analysis the post-processing image of 76 article Bridge vascular which can be assessed in 65 cases patients with lower extremity arteriosclerosis obliterans,and to evaluated the diagnosis accuracy,sensitivity,specificity,positive predictive rate and negative predictive rate of postoperative bridge intravascular lesions.Results Using 256 slices spiral CTA,the bridge vascular of grafts operation patients can be clearly displayed,stenosis or unobstructed,and the anastomosis of the bridge vascular.5 graft occlu-sion,22bridge intravascular plaque were diagnosed correctly,3 vascular lesions were undiscovered.The accuracy,sensitivity,speci-ficity,positive predictive rate and negative predictive rate were 98.15%,96.15%,97.90%,92.59% and 97.96% respectively. Conclusion Using 256 slices spiral CTA can clearly show the endovascular lesions of lower extremity arteriosclerosis obliterans after grafts operation,and has high accuracy and specificity.It can be safely used as one of noninvasive follow-up means after grafts oper-ation.
