Evaluation of left ventricular torsion and segmental function by speckle tracking imaging and real-time three dimensional echocardiography in patients with heart transplant / 中华超声影像学杂志
Chinese Journal of Ultrasonography
;
(12): 649-654, 2010.
Article
Dans Chinois
| WPRIM
| ID: wpr-387645
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.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
langue:
Chinois
Texte intégral:
Chinese Journal of Ultrasonography
Année:
2010
Type:
Article
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