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目的探讨彩色多普勒超声(CDU)用于下肢动脉狭窄诊断的价值。方法对54例采用CDU对下肢动脉狭窄进行诊断患者的临床资料进行回顾性分析,将其诊断价值与数字减影血管造影(DSA)检查进行比较。结果 CDU对下肢动脉轻度狭窄、中度狭窄、重度狭窄、闭塞的诊断符合率分别为91.0%,86.7%、75.6%、92.0%;与DSA检查结果比较,差异无统计学意义(P>0.05)。CDU对下肢动脉狭窄诊断的敏感度、特异度、阳性预测值、阴性预测值、诊断符合率分别为90.0%、96.2%、91.8%、94.0%、93.4%,与DSA比较差异无统计学意义(P>0.05)。结论 CDU用于临床诊断下肢动脉狭窄有无创、便捷、经济等优点,值得推广和应用。
Objective To investigate the value of color Doppler ultrasound (CDU) in the diagnosis of arterial stenosis of lower extremity. Methods The clinical data of 54 patients diagnosed by arterial stenosis of lower extremity using CDU were retrospectively analyzed, and their diagnostic value was compared with digital subtraction angiography (DSA). Results The coincidence rates of CDU in diagnosis of mild, moderate, severe stenosis and occlusion of lower extremity artery were 91.0%, 86.7%, 75.6% and 92.0%, respectively. There was no significant difference between DSA and DSA (P> 0.05 ). The sensitivity, specificity, positive predictive value, negative predictive value and diagnostic coincidence rate of CDU for lower extremity arterial stenosis were 90.0%, 96.2%, 91.8%, 94.0% and 93.4%, respectively, with no significant difference compared with DSA P> 0.05). Conclusion CDU is clinically useful in the diagnosis of lower extremity arterial stenosis. It is worth popularizing and applying.