| 超声二维应变评价正常人左室扭转和径向位移的初步研究 |
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| 引用本文： | 张丽,谢明星,韩伟,王新房,吕清,王静,王蕾.超声二维应变评价正常人左室扭转和径向位移的初步研究[J].中国医学影像技术,2008,24(4):531-534. |
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| 作者姓名： | 张丽 谢明星 韩伟 王新房 吕清 王静 王蕾 |
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| 作者单位： | 华中科技大学同济医学院附属协和医院超声诊断科,湖北省分子影像重点实验室,湖北,武汉,430022 |
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| 摘 要： | 目的应用超声二维应变技术（2DS）探讨正常左室扭转及径向位移运动特征,构建左室-扭转位移环。方法健康成人志愿者58例,取胸骨旁左室心尖和心底短轴观对各水平旋转及径向位移进行定量分析,计算左室扭转及径向位移,构建左室-扭转位移环,并记录心底部与心尖部旋转角度峰值和左室扭转角度峰值及达峰时间,收缩期及等容舒张期左室径向位移。结果正常人扭转运动主要表现为心底部顺时针旋转和心尖部逆时针旋转,心脏整体表现为心动周期内逆时针方向为主的扭转运动。左室扭转-位移环均呈＂8＂字构型。收缩期及等容舒张期左室扭转与径向位移呈线性相关。结论应用2DS技术可无创性评价正常人左室扭转及径向位移运动特征,构建左室-扭转位移环。
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| 关 键 词： | 超声心动描记术 二维应变 左室 心肌收缩 位移 超声 应变 无创性评价 正常人 左室 扭转运动 径向位移 研究 strain normal displacement twist left ventricular 线性相关 字构 方向 逆时针旋转 心动周期 整体表现 心脏 |
| 文章编号： | 1003-3289(2008)04-0531-04 |
| 收稿时间： | 2007/9/28 0:00:00 |
| 修稿时间： | 2007年9月28日 |
Assessment of left ventricular twist and displacement in normal subjects by two-dimensional strain |
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| ZHANG Li,XIE Ming-xing,HAN Wei,WANG Xin-fang,LV Qing,WANG Jing and WANG Lei.Assessment of left ventricular twist and displacement in normal subjects by two-dimensional strain[J].Chinese Journal of Medical Imaging Technology,2008,24(4):531-534. |
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| Authors: | ZHANG Li XIE Ming-xing HAN Wei WANG Xin-fang LV Qing WANG Jing and WANG Lei |
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| Institution: | Department of Ultrasound, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Hubei Provincial Key Laboratory of Molecular Imaging, Wuhan 430022, China;Department of Ultrasound, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Hubei Provincial Key Laboratory of Molecular Imaging, Wuhan 430022, China;Department of Ultrasound, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Hubei Provincial Key Laboratory of Molecular Imaging, Wuhan 430022, China;Department of Ultrasound, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Hubei Provincial Key Laboratory of Molecular Imaging, Wuhan 430022, China;Department of Ultrasound, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Hubei Provincial Key Laboratory of Molecular Imaging, Wuhan 430022, China;Department of Ultrasound, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Hubei Provincial Key Laboratory of Molecular Imaging, Wuhan 430022, China;Department of Ultrasound, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Hubei Provincial Key Laboratory of Molecular Imaging, Wuhan 430022, China |
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| Abstract: | |
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| Keywords: | Echocardiography Two-dimensional strain Left ventricular Myocardial contraction Displacement |
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