CAJ | 학술논문

目的应用声辐射力脉冲成像(acoustic radiation force imaging,ARFI)技术定量评价脑梗死和非脑梗死患者颈动脉粥样软斑块的质地.方法 71例颈动脉粥样软斑块患者分为脑梗死组(31例)与非脑梗死组(40例),分别对各个斑块行ARFI检查,记录各斑块的剪切波传播速度(shear wave velocities,SWV).对两组斑块的SWV进行比较.结果脑梗死组软斑的SWV比非脑梗死组慢,差异有统计学意义(P=0.027).绘制ROC曲线,以斑块组织SWV=1.262 m/s为截点预测脑梗死的敏感性和特异性分别为67.7％和70.0％.结论 ARFI技术可对颈动脉粥样软斑块质地进行定量检测,以预测脑梗死的发生.
목적 응용성복사력맥충성상(acoustic radiation force imaging,ARFI)기술정량평개뇌경사화비뇌경사환자경동맥죽양연반괴적질지.방법 71례경동맥죽양연반괴환자분위뇌경사조(31례)여비뇌경사조(40례),분별대각개반괴행ARFI검사,기록각반괴적전절파전파속도(shear wave velocities,SWV).대량조반괴적SWV진행비교.결과 뇌경사조연반적SWV비비뇌경사조만,차이유통계학의의(P=0.027).회제ROC곡선,이반괴조직SWV=1.262 m/s위절점예측뇌경사적민감성화특이성분별위67.7％화70.0％.결론 ARFI기술가대경동맥죽양연반괴질지진행정량검측,이예측뇌경사적발생.
Objective To quantitatively assess the texture of carotid soft plaques in patients with or without cerebral infarction using acoustic radiation force imaging(ARFI).Methods A total of 71 patients with carotid soft plaques were divided into two groups:group A including 31 patients with cerebral infarction and group B including 40 patients without cerebral infarction.ARFI was used to measure the shear wave velocities(SWV) of each soft plaque of the two groups.The results of two groups were compared.Receiver operating characteristic(ROC) curve was drawn to assess the diagnostic accuracy.Results The value of SWV between two groups were significantly different ( P =0.027).The sensitivity and specificity of SWV (AUC =0.667,cut-off value =1.262 m/s) in predicting cerebral infarction was 67.7％ and 70.0％ respectively.Conclusions The texture of carotid soft plaques can be evaluated quantitatively using ARFI which was strongly related with cerebral infarction.