中国医学装备2016，Vol.13Issue(3)：73-77,5.DOI:10.3969/J.ISSN.1672-8270.2016.03.021
超声三维斑点追踪技术评价左室射血分数正常的TAVI术患者左室整体收缩功能
Assessment on left ventricular global systolic function of patients with normal left ventricular ejection fraction after transcatheter aortic valve implantation by three dimensional speckle tracking imaging
张敏 1金修才 1徐芬 1熊文峰 1赵宝珍1
作者信息
- 1. 第二军医大学附属长海医院超声科 上海 200433
- 折叠
摘要
Abstract
Objective:To evaluate left ventricular(LV) global systolic function in patients with normal left ventricular ejection fraction(LVEF) underwent transfemoral balloon dilated aortic valve implantation operation(TBDAVI) by three-dimensional speckle tracking imaging (3D-STI) technology.Methods: Sixteen patiens with severe aortic stenosis were enrolled in this study, all of them with normal left ventricular ejection fraction(LVEF) underwent successful TAVI operation. 20 normal subjects matched with age and sex were selected as control groups. The real-time 3D full–volume images of left ventricular on apical four-chamber view were acquired and analyzed by 3D-STI online software on before, 3days, 1 month, 3 months, 6 months after TAVI. Left ventricular global longitudinal strain(GLS), global circumferential strain(GCS), global area strain(GAS), global radial strain(GRS) were calculated and compared.Results:Compared with the pre-operation, aortic valve blood flow velocity(AVmax), max aortic valve pressure gradient(maxPG) of 3 days after operation decreased significantly; LV-EF had no significant differences before and after operation; LV 3D-GLS, GCS, GAS, GRS were higher than pre-operation and each group afteroperation was on the the rise, but it was still lower than the normal control group. Left ventricular mass index at the end of diastole period decreased significantly 3 months after TAVI.Conclusion: LV 3D-strain calculation by 3D-STI could evaluate the early change of heart systolic function of TAVI patients whose LVEF had no significant differences before and after operation.关键词
三维斑点追踪技术/应变/主动脉瓣狭窄/主动脉瓣植入术/左室功能Key words
3D speckle tracking/Strain/Aortic stenosis/Implantation of aortic valve/Left ventricular function分类
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张敏,金修才,徐芬,熊文峰,赵宝珍..超声三维斑点追踪技术评价左室射血分数正常的TAVI术患者左室整体收缩功能[J].中国医学装备,2016,13(3):73-77,5.
