彩色多普勒超声、CTA对脑卒中颈动脉粥样硬化的诊断价值对比研究

Comparative Study on the Diagnostic Value of Color Doppler Ultrasound and CTA in the Diagnosis of Carotid Atherosclerosis in Stroke

目的研究彩色多普勒超声、CT血管成像(CTA)对脑卒中颈动脉粥样硬化的诊断价值。方法将2017年8月至2019年8月我院收治的疑似脑卒中颈动脉粥样硬化患者151例,所有患者均行彩色多普勒超声及CTA检查。以数字减影血管造影检查结果为“金标准”,对比彩色多普勒超声及CTA在脑卒中颈动脉粥样硬化中的诊断效能。结果151例受检者中,经数字减影血管造影检查确诊脑卒中颈动脉粥样硬化患者共107例。CTA的准确性、灵敏度、阳性预测值、阴性预测值均高于彩色多普勒超声(P<0.05)。CTA的特异性与彩色多普勒超声检查比较差异无统计学意义(P>0.05)。结论彩色多普勒超声及CTA对颈部动脉血管粥样硬化均具有一定的诊断价值,但CTA更具整体性,而彩色多普勒超声则对较小斑块更为敏感。

Objective To study the diagnostic value of color Doppler ultrasound and CT angiography(CTA)in the diagnosis of carotid atherosclerosis in stroke.Methods 151 patients with carotid atherosclerosis in stroke admitted to our hospital from August 2017 to August 2019 were selected and given color Doppler ultrasound and CTA.Taking the results of digital subtraction angiography as the gold standard,the diagnostic efficacy of color Doppler ultrasound and CTA in carotid atherosclerosis in stroke was compared.Results Among the 151 subjects,a total of 107 patients with carotid atherosclerosis in stroke were diagnosed by digital subtraction angiography.The accuracy,sensitivity,positive predictive value and negative predictive value of CTA were higher than those of color Doppler ultrasound(P<0.05).No statistical difference was found in the specificity between CTA and color Doppler ultrasound(P>0.05).Conclusions Both color Doppler ultrasound and CTA have certain diagnostic value for carotid atherosclerosis,but CTA is more holistic and color Doppler ultrasound is more sensitive to smaller plaques.