Evaluation of left ventricular torsion and segmental function by speckle tracking imaging and real-time three dimensional echocardiography in patients with heart transplant
10.3760/cma.j.issn.1004-4477.2010.08.002
- VernacularTitle:斑点追踪技术及实时三维超声心动图评价心脏移植患者左心室扭转及节段功能
- Author:
Cuizhen PAN
;
Xianhong SHU
;
Minmin SUN
;
Haohua YAO
;
Hao CHEN
;
Chunsheng WANG
- Publication Type:Journal Article
- Keywords:
Echocardiography,real-time three-dimensional;
Heart transplantation;
Ventricular function,left;
Speckle tracking imaging
- From:Chinese Journal of Ultrasonography
2010;19(8):649-654
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate left ventricular torsion and systolic function of the segment by speckle tracking imaging(STI) and real-time three-dimensional echocardiography(RT-3DE) in patients with heart transplantation. Methods Twenty patients with heart transplantation and twenty subjects with normal left ventricular function were examined by Philips iE33 with a X3-1 probe and GE Vivid 7 with M4S probe.Results There were two subjects(100% ) with clockwise rotation in control group patients, but eight patients (40 % ) with clockwise rotation in heart transplantation group. And heart transplantation group were divided into two sub-groups (group A with counterclockwise rotation and group B with clockwise rotation) based on the direction of rotation. In apical level,the systolic peak of the angle of rotation of anterior septum,posterior wall,inferior wall, posterior septum in group A was less than that of control group( P ＜0.05), all segmental systolic peak of the angle of rotation in group B was reduced compared with control group( P ＜0. 05),however all segmental systolic peak of rate of rotation in group A and group B was not significant different compared with control group ( P ＞0. 05) ,all segmental diastolic peak in early and late of rate of rotation in group B was obviously higher than that in control group and group A ( P ＜0. 05), while all segmental diastolic peak in early and late of rate of rotation in group A was not significant different compared with control group( P ＞0.05). The displacement and the parameter index of 17 segment time to minimal systolic volume in group A and group B were not significant different compared with control group( P ＞0. 05), but left ventricular angle of torsion was decreased in group B compared with control group and group A( P ＜0.05). Conclusions STI and RT-3DE can rapidly evaluate function of left ventricular torsion and function of segmental systole and systolic synchrony in patients with heart transplant.
