| 白冰,赵宝珍,蔡珠虹,熊文峰,王茵.速度向量成像技术评价正常人颈总动脉管壁运动力学状态[J].中国医学影像技术,2010,26(4):666~670 |
| 速度向量成像技术评价正常人颈总动脉管壁运动力学状态 |
| Assessment of motion dynamic characteristics of common carotid artery wall in normal people with velocity vector imaging |
| 投稿时间：2009-06-23 修订日期：2009-12-28 |
| DOI： |
| 中文关键词: 颈动脉 速度向量成像 应变 应变率 |
| 英文关键词:Carotid arteries Velocity vector image Strain Strain rate |
| 基金项目: |
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| 摘要点击次数: 2366 |
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| 中文摘要: |
| 目的 应用速度向量成像(VVI)技术分析正常人颈总动脉(CCA)短轴方向管壁运动和弹性参数特点及其与影响因素间的关系。 方法 健康志愿者40名,采用Siemens Acuson Sequoia 512彩色多普勒超声诊断仪采集连续3个心动周期的CCA动态短轴二维图像,分析右侧CCA管壁短轴方向6个节段(前壁、后壁、前外侧壁、前内侧壁、后外侧壁、后内侧壁)的运动、弹性及其衍生参数的特点,并分析这些参数间及其与相关影响因素间的关系。 结果 各侧壁的弹性相关参数差异无统计学意义(P>0.05);运动相关参数(除速度达峰时间)差异有统计学意义(P<0.05),即外侧壁和前壁明显高于后壁和内侧壁。年龄及内-中膜厚度与部分弹性参数及部分运动参数呈负相关(P<0.05)。心率与部分弹性参数及部分运动参数呈正相关(P<0.05)。弹性与运动参数间呈正相关(P<0.05),弹性及运动参数达峰时间呈正相关(P<0.05)。 结论 VVI技术可用于研究正常人CCA管壁的运动力学特点及其与影响因素之间的关系。 |
| 英文摘要: |
| Objective To analyze the motion, elastic and derived parameters of normal common carotid artery (CCA) wall in short-axis orientation with velocity vector imaging (VVI) technique. Methods Two-dimensional dynamic images of CCA in 40 healthy volunteers people were obtained in short-axis view with Siemens Acuson Sequoia 512 color Doppler ultrasound. The motion, elastic and derived parameters were analyzed in right CCA including 6 segments: Anterior wall, posterior wall, anterolateral wall, anterior internal wall, posterolateral wall and posterointernal wall. Relationship between these parameters and the influencing factors were analyzed as well. Results There was no statistical difference of the elastic parameters among 6 walls (P>0.05). Some of the motion parameters of the lateral wall and anterior wall were higher than those of the posterior wall and internal wall (P<0.05). Age and intima-media thickness were negatively correlated with some elastic parameters and some motion parameters (P<0.05). Heart rate were positively correlated with some elastic parameters and some motion parameters (P<0.05). Elastic parameters were positively correlated with motion parameters (P<0.05) and positive correlation was found between time to peak of elastic and motion parameters (P<0.05). Conclusion VVI is an effective technique for observing CCA mechanical characteristics of the movement in normal human, and has potential for studying some of related factors of the characteristics. |
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