| Assessment of Right Ventricular Free Wall Longitudinal Myocardial Deformation Using Speckle Tracking Imaging in Normal Subjects |
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| 作者姓名： | 童春 黎春雷 宋家琳 刘红云 邓又斌 |
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| 作者单位： | Department of Medical Ultrasound Tongji Hospital，Tongji Medical College，Huazhong University of Science and Technology Wuhan 430030，China，Department of Medical Ultrasound，Tongji Hospital，Tongji Medical College，Huazhong University of Science and Technology Wuhan 430030，China，Department of Medical Ultrasound，Tongji Hospital，Tongji Medical College，Huazhong University of Science and Technology Wuhan 430030，China，Department of Medical Ultrasound，Tongji Hospital，Tongji Medical College，Huazhong University of Science and Technology Wuhan 430030，China，Department of Medical Ultrasound，Tongji Hospital，Tongji Medical College，Huazhong University of Science and Technology Wuhan 430030，China |
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| 摘 要： | To assess fight ventficular free wall longitudinal myocardium deformation and examine the changes with normal age by speckle tracking imaging （STI）, myocardial systolic peak strain （ε）, systolic peak strain rate （SRs）, early diastolic peak strain rate （SRe）, late diastolic peak strain rate （SRa）, the ratio of SRe/SRa were measured in the basal, middle and apical segments of right ventficular free wall in 75 healthy volunteers （age range： 21-71 y） by STI from the apical 4-chamber view. RV longitudinal strain and strain rate were highest in the basal segment of the free wall. Older subjects had lower early diastolic strain rate （SRe） than younger subjects, but they had higher late diastolic strain rate （SRa）. A negative correlation between age and the ratio of SRe/SRa was found in all RV free wall segments （r=-4）.466 - -0.614, P〈0.01）. It is concluded that RV diastolic strain rate changes with age and STI can be used for the study of RV myocardial deformation.
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| 关 键 词： | 右心室 心脏 心肌膜 舒张力 |
| 收稿时间： | 15 January 2009 |
Assessment of right ventricular free wall longitudinal myocardial deformation using speckle tracking imaging in normal subjects |
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| Chun?Tong,Chunlei?Li,Jialin?Song,Hongyun?Liu,Youbin?Deng.Assessment of Right Ventricular Free Wall Longitudinal Myocardial Deformation Using Speckle Tracking Imaging in Normal Subjects[J].Journal of Zuazhong University of Science and Technology: Medical Edition,2008,28(2):194-196. |
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| Authors: | Chun Tong Chunlei Li Jialin Song Hongyun Liu Youbin Deng |
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| Institution: | Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030. China |
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| Abstract: | To assess right ventricular free wall longitudinal myocardium deformation and examine the changes with normal age by speckle tracking imaging (STI), myocardial systolic peak strain (ε), systolic peak strain rate (SRs), early diastolic peak strain rate (Sre), late diastolic peak strain rate (Sra), the ratio of Sre/Sra were measured in the basal, middle and apical segments of right ventricular free wall in 75 healthy volunteers (age range: 21-71 y) by STI from the apical 4-chamber view. RV longitudinal strain and strain rate were highest in the basal segment of the free wall. Older subjects had lower early diastolic strain rate (Sre) than younger subjects, but they had higher late diastolic strain rate (Sra). A negative correlation between age and the ratio of Sre/Sra was found in all RV free wall segments (r=-0.466 - -0.614, P<0.01). It is concluded that RV diastolic strain rate changes with age and STI can be used for the study of RV myocardial deformation. |
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| Keywords: | right ventricular function strain strain rate speckle tracking imaging |
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