Assessment of left ventricular twist of patients with hypertension by three-dimensional speckle tracking imaging
10.3760/cma.j.issn.1004-4477.2014.04.004
- VernacularTitle:三维斑点追踪技术评价高血压患者左心室扭转的临床研究
- Author:
Xuanjia CHEN
;
Jianhua WANG
;
Minyu ZHANG
;
Mei LIU
;
Yu GAO
;
Tao PAN
- Publication Type:Journal Article
- Keywords:
Echocardiography;
Hypertension;
Ventricular function,left;
Twist;
Speckle tracking imaging,three-dimensional
- From:
Chinese Journal of Ultrasonography
2014;23(4):289-292
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe features of twist of the left ventricle (LV) in patients of essential hypertension (EH) with LV normal geometry (LVN) by three-dimensional speckle tracking imaging (3D-STI).Methods Thirty EH patients with LVN and 32 healthy control subjects were included.From the dynamic images of LV apical two-and four-chamber-views and three-dimensional full volume dataset acquired,the following parameters were obtained:peak of LV basal,middle and apical segment rotation (Prot-B,Prot-M and Prot-A),peak of LV global segment twist (LV-tw) and rotation (LV-rot),the global radial and longitudinal displacement (Dr,Dl) and the global 3D displacement (D3d).The difference of these parameters was compared between EH and control groups,and the correlation between LV-tw and the displacements in EH group was studied.Results Compared with the normal control group,Prot-B,Prot-M,Prot-A,LV-tw,LV-rot,Dr,Dl and D3d of EH group were significantly increased (P ＜ 0.01 or 0.05),and LV-tw showed significant correlation with Dr,Dl and D3d (P ＜0.01 or 0.05).Conclusions The evaluation of LV twist with 3DSTI in EH patients can reflect the changes of LV systolic function in early stage,3D-STI may provide a new modality for quantitative evaluation of early abnormality of LV function in clinical practice.
