Evaluation of consistency between V-plane imaging and tissue Doppler imaging for systolic synchronicity in patients with dilated cardiomyopathy
10.3760/cma.j.issn.1004-4477.2014.07.002
- VernacularTitle:V-plane显像与组织多普勒技术评价扩张型心肌病患者左心室收缩同步性的一致性研究
- Author:
Hongning SONG
;
Qing ZHOU
;
Zhenying QIN
;
Jinling CHEN
;
Ruiqiang GUO
- Publication Type:Journal Article
- Keywords:
Echocardiography,real-time three-dimensional;
Cardiomyopathy,dilated;
Ventricular function,left
- From:
Chinese Journal of Ultrasonography
2014;23(7):558-561
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate left ventricular systolic synchronicity in patients with dilated cardiomyopathy by V-plane imaging and compare with clinical commonly used tissue Doppler imaging (TDI),evaluate the relevance and consistency between these two parameters.Methods 20 patients diagnosed with DCM and 20 healthy controls were enrolled,2D images,V-plane imaging and TDI waveform were acquired.Time to peak velocity of left ventricular 12 segments were measured by TDI and the standard deviation (TDI_SD) were calculated.Displacement time to peak were measured by V-plane and the standard deviation (V-plane_SD) were calculated.Results Compared with control group,TDI_SD and V-plane_SD increased significantly (P ＜ 0.01),TDI time to peak increased and V-plane time to peak decreased significantly(P ＜0.01).In the two group,12 segment time to peak measured by V-plane were significantly higher than TDI(P ＜ 0.01).There was a significant correlation between TDI_SD and V-plane_SD (r =0.925,P ＜0.001).Bland-Altman plot showed that 95％ plots of ratio of TDI_SD and V-plane_SD were among limits of agreement,which was (0.50,1.36).Conclusions Left ventricular systolic synchronicity in DCM patients can be observed by V-plane imaging.V-plane has significant relevance and consistency with TDI,and can overcome the limitations of TDI that 12 segments can not be displayed in the same cardiac cycle.
