彩色多普勒超声联合CT动脉造影诊断下肢动脉硬化闭塞症

目的 评价彩色多普勒超声及CT动脉造影共同诊断下肢动脉硬化闭塞症的有效性.方法 回顾性研究43例下肢动脉硬化闭塞症患者,均分别应用彩色多普勒超声、CT动脉造影及数字减影动脉造影进行诊断.以数字减影动脉造影结果为金标准,将前2种检查结果与之进行对比分析.结果 彩色多普勒超声诊断下肢动脉硬化闭塞症敏感性、特异性、阳性预测值、阴性预测值分别为82.96%、95.2%、94.92%、83.8%;CT动脉造影诊断下肢动脉硬化闭塞症敏感性、特异性、阳性预测值、阴性预测值分别为88.89%、96.75%、96.77%、88.81%,两者联合诊断下肢动脉硬化闭塞症敏感性、特异性、阳性预测值、阴性预测值分别为94.81%、99.17%、99.22%、94.44%.结论 彩色多普勒超声联合CT动脉造影检查是诊断下肢动脉硬化闭塞症的有效方法.

Color doppler ultrasound combining with computed tomographic angiography in assessing arteriosclerosis occlusion

Objective To evaluate the effectiveness of color doppler ultrasound(CDU)in combination of computed tomographie angiography(CTA)in diagnosis of the arteriosclerosis occlusion.Methods:43 patients with arteriosclerosis occlusion were assessed by color doppler ultrasound,CTA and digital subtraction angiography(DSA).By using DSA as the reference standard,the results were compared.Results The sensitivity.specificity,positive and negative predictive values for CDU were 82.96%,95.2%,94.92%,83.8% respectively.Those for CTA were 88.89%,96.75%,96.77%,88.81% respectively,and for the two combination,were 94.81%,99.17%,99.22%,94.44% respectively.Conclusion The color doppler ultrasound combined with CTA is an effective way in diagnosing arteriosclerosis occlusion.