超声弹性定量技术检测颈动脉内中膜厚度的临床价值

目的：探讨超声弹性定量技术检测颈动脉内中膜厚度（IM T ）的临床价值。方法2012年2月到2015年8月选择在唐山市第二医院进行健康体检者140例，根据IM T检测结果分为3组：对照组40例（IM T＜0．9 mm ）；IM T增厚组60例（0．9 mm≤IMT＜1．3 mm）；斑块组40例（IMT≥1．3mm），3组都进行常规超声与超声弹性定量技术检测，同时进行临床资料的调查与实验室生化分析检查。结果斑块组、IMT增厚组的总胆固醇、低密度脂蛋白胆固醇（LDL‐C）比对照组明显升高（P＜0．05），3组间其他实验室的指标差异没有统计学意义（P＞0．05）。斑块组、IM T增厚组的顺应性（AC）值明显高于对照组（P＜0．05），而膨大指数（AI）与脉搏波传导速度（PWVβ）值明显低于对照组（P＜0．05）。线性相关分析结果显示IMT 与 AI、PWVβ呈正相关（r＝0．512，P＜0．05；r＝0．483，P＜0．05），与AC呈负相关（r＝－0．713，P＜0．05）；Logistic分析结果显示LDL‐C、AC、PWVβ为影响IMT的主要独立危险因素（P＜0．05）。结论超声弹性定量技术检测颈部血管能安全、无创地动态观察动脉硬化进展过程中的血管壁的变化，有利于进行IM T的判断与鉴别。

The clinical values of quantitative ultrasound elastography technique in detecting internal carotid artery thickness

Objective To investigate the clinical values of quantitative ultrasound elastography technique in detecting internal carotid artery thickness .Methods One hundred and forty healthy objects who have conducted physical examination in our hospital from February 2012 to August 2015 were selected ,and divided in to three groups:the healthy control group (n=40;IMT<0 .9 mm) ,the IMT thickening group (n=60;0 .9 mm≤ IMT < 1 .3 mm) and plaque group(n= 40 ;IMT ≥1 .3 mm) .All the three groups conducted routine ultrasound and quantitative ultrasound elastography ,and the clinical data investigation and laboratory ex‐amination were carried out at the same time .Results The TC ,LDL‐C values in the plaque group and intimal thickening group were significantly higher than the control group (P<0 .05) .The AC values in the plaque group and intimal thickening group were signif‐icantly higher than the control group (P<0 .05) ,while the AI and PWVβvalues were significantly lower(P<0 .05) .Linear corre‐lation analysis showed that IMT were positively correlated to the AI ,PWVβ (r=0 .512 ,P <0 .05 ;r= 0 .483 ,P<0 .05) ,and the AC were negatively correlated (r= -0 .713 ,P<0 .05);Logistic analysis showed that LDL‐C ,AC ,PWVβwere the major independ‐ent risk factors for IM T (P<0 .05) .Conclusion Ultrasound elasticity quantitative detection of neck vessels is safe and can non‐in‐vasive dynamically observe blood vessel wall changes during the progression of atherosclerosis ,thus it's helpful in the judge and i‐dentification of internal carotid artery thickness .