Assessment of left ventricular diastolic function by vector flow mapping in patients with mitral valve plasty
10.3760/cma.j.issn.1004-4477.2019.02.001
- VernacularTitle:血流向量成像技术评价二尖瓣成形患者左心室舒张功能的研究
- Author:
Ying WANG
1
;
Yanan LI
;
Cunying CUI
;
Yuanyuan LIU
;
Yanbin HU
;
Danqing HUANG
;
Juan ZHANG
;
Lin LIU
Author Information
1. 河南省人民医院阜外华中心血管病医院郑州大学人民医院超声科
- Keywords:
Vector flow mapping;
Mitral valve annuloplasty;
Ventricular function;
left;
Energy loss
- From:
Chinese Journal of Ultrasonography
2019;28(2):93-98
- CountryChina
- Language:Chinese
-
Abstract:
Objective To assess left ventricular diastolic function by vector flow mapping ( VFM ) in patients with mitral valve plasty . Methods A total of 30 patients undergoing mitral valve plasty were enrolled . The dissipative energy loss ( EL) of basal ,middle ,apical and global left ventricular segments in rapid filing phase ,slow filling phase ,and atria contract period were measured by VFM ,and the EL above were compared in 1 week preoperatively ,1 week and 1 month postoperatively . Results Compared with 1 week preoperatively ,EL in all diastole in basal and middle left ventricular segments were significantly increased at 1 week after operation (all P <0 .05) ,EL in some diastole in apical and global left ventricular segments were significantly increased at 1 week after operation ( all P <0 .05) ,and EL in all diastole in all left ventricular segments were significantly increased at 1 month after operation (all P <0 .05) . Compared with 1 week postoperatively ,EL in all diastole in all left ventricular segments were significantly increased at 1 month after operation ( all P < 0 .05) . Conclusions VFM can quantitatively evaluate left ventricular diastolic function ,and helps to evaluate treatment response at preoperative and postoperative .
