| 摘要: |
| 目的：探索剪切波弹性成像（shear wave elastography, SWE）评估不同回声颈动脉斑块弹性特征。方法: 对145例颈动脉斑块患者行颈动脉超声及SWE检查，采用两种斑块回声分类方法对斑块进行分类，比较不同回声特征颈动脉斑块的杨氏模量值。结果:斑块的最大、最小及平均杨氏模量分别在低回声、等回声、强回声及不均质回声斑块之间的差异有统计学意义(P<0.05)，斑块的最大、最小及平均杨氏模量分别在I~IV型斑块之间的差异有统计学意义(P<0.05)。结论:SWE技术可以定量评估颈动脉斑块的弹性特征，能够反映不同回声斑块间的弹性差异。 |
| 关键词: 剪切波弹性成像 斑块 颈动脉 |
| DOI： |
| 投稿时间：2016-03-26修订日期：2016-04-14 |
| 基金项目: |
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| Evaluation of different echogenicity carotid plaque by ultrasound shear wave elastography |
| JING Lei,LIU Sheng |
| (The First Affiliated Hospital of Nanjing Medical University) |
| Abstract: |
| Objective: To explore the application value of the shear wave elastography（SWE） in evaluating of different echogenicity carotid plaque．Methods：One hundred and forty five patients with 270 carotid atherosclerotic plaques were detected by carotid artery ultrasound, all the carotid plaques underwent SWE, and the plaques were classified by two kinds of plaque echogenicity classification methods. Comparison of Young's modulus values of carotid plaque among hyperechoic，hypoechoic, isoechoic and heterogeneous plaques and among type I ~ IV plaques. Results: Among 270 plaques, 113 plaques in heterogeneous echo, 74 plaques in hypoecho, 43 plaques in isoecho, 40 plaques in hyperecho and 75 plaques in type I, 28 plaques in type II, 36 plaques in type III and 131 plaques in type IV. The sequence of Young's modulus values from high to low were: hyperechoic plaques, heterogeneous plaques, isoechoic plaques, hypoechoic plaque. The maximum，minimum and mean Young's modulus values all had statistical differences among hyperechoic，hypoechoic, isoechoic and heterogeneous plaques (P < 0.05). And the Young's modulus values of carotid plaque from type I to type IV were from low to high. The maximum, minimum and mean Young's modulus all had statistical differences among type I ~ IV plaques (P < 0.05). Conclusion: SWE can quantitatively evaluate the elastic characteristics of carotid plaque, and can reflect the elastic variances among different echo plaques. |
| Key words: Shear wave elastography Plaque Carotid |
