Assessment of left ventricular systolic synchronicity with omnidirectional M-mode echocardiography in dilated cardiomyopathy patients
10.3321/j.issn:1003-3289.2009.10.020
- VernacularTitle:全方向M型超声评价扩张型心肌病患者左心室收缩同步性
- Author:
Zhensheng YE
;
Wei GUO
- Publication Type:Journal Article
- Keywords:
Omnidirectional M-mode;
Echocardiography;
Dilated cardiomyopathy;
Synchronicity
- From:
Chinese Journal of Medical Imaging Technology
2009;25(10):1803-1805
- CountryChina
- Language:Chinese
-
Abstract:
Objective To assess left ventricular radial systolic synchronicity with omnidirectional M-mode echocardiography (OME). Methods OME examination was performed in 21 patients with dilated cardiomyopathy (DCM) and 27 healthy controls. The time to peak radial systolic movement were measured and adjusted by R-R interval. The standard deviation (Tc-SD)and the maximal temporal difference (Tc-dif) of the time to peak radial systolic movement of left ventricular short-axis segments at basal and mid-levels, the septal-to-posterior wall motion delay (SPWMD), septal-to-anterior wall motion delay (SAWMD), septal-to-laterior wall motion delay (SLWMD), septal-to-inferior wall motion delay (SIWMD) and anterior-to-inferior wall motion delay (AIWMD) were used as indicators of systolic dyssynchrony.Results Compared with the controls, Tc-dif, Tc-SD, SLWMD, SPWMD and SIWMD in basal level were significantly higher in the DCM group (P<0.05), while Tc-dif, Tc-SD, SAWMD, SPWMD, SIWMD and AIWMD in mid-level were significantly higher in the DCM group (P<0.05).Conclusion Omnidirectional M-mode echocardiography is useful to evaluate the radial systolic synchrony of the left ventricular in patients with dilated cardiomyopathy.
