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目的研究经颅多普勒与颈动脉超声检测缺血性脑血管疾病的临床价值。方法对68例缺血性脑血管疾病患者均进行经颅多普勒与颈动脉超声检测,比较不同种检测方式阳性率、敏感度、特异度、阳性预测值及阴性预测值。结果颈动脉超声诊断颈动脉狭窄阳性率76.47%(52/68),联合诊断组为89.71两组比较(61/68),差异有统计学意义(P<0.05);经颅多普勒颅内动脉流速阳性率77.94%(53/68),联合诊断为61.76%(42/68),两组比较差异有统计学意义(P<0.05),联合诊断较经颅多普勒检测仅降低其假阳性率;联合检测敏感度97.25%,阴性预测值达到100.00%,高于单一检测方式,差异有统计学意义(P<0.05)。结论经颅多普勒与颈动脉超声检测缺血性脑血管疾病各有优势,而联合诊断可显著提高诊断准确率,具有较高的临床应用价值。
Objective To study the clinical value of transcranial Doppler and carotid ultrasonography in detecting ischemic cerebrovascular diseases. Methods Totally 68 cases of ischemic cerebrovascular disease were examined by transcranial Doppler and carotid ultrasonography. The positive rate, sensitivity, specificity, positive predictive value and negative predictive value of different kinds of test methods were compared. Results The positive rate of carotid stenosis was 76.47% (52/68) in the diagnosis of carotid artery, and 89.71 in the combined diagnosis group (61/68) (P <0.05). The transcranial Doppler intracranial The positive rate of arterial flow rate was 77.94% (53/68), and the combined diagnosis was 61.76% (42/68). The difference between the two groups was statistically significant (P <0.05). Combined diagnosis of transcranial Doppler The positive rate was 97.25% and the negative predictive value was 100.00%, which was higher than the single detection method, the difference was statistically significant (P <0.05). Conclusion Transcranial Doppler and carotid ultrasonography have their own advantages in the diagnosis of ischemic cerebrovascular disease, and combined diagnosis can significantly improve the diagnostic accuracy, which has a high clinical value.