Evaluation on left ventricular systolic function using three-dimensional speckle-tracking echocardiography in patients with left ventricular noncompaction
LV Hui-na, REN Wei-dong, SUN Lu, BI Wen-jing, QIAO Wei, XIAO Yang-jie
Department of Ultrasound, Shengjing Hospital, China Medical University, Shenyang 110004, China
Abstract:Objective: To evaluate the left systolic function of noncompacted and compacted left ventricular segments in patients with left ventricular noncompaction(LVNC) using three-dimensional speckle-tracking echocardiography(3D-STE). Methods: Thirty-one patients with LVNC(LVNC group) and thirty-one healthy volunteers(Control group) were enrolled in the study. Three-dimensional full-volume image storage was acquired. Parameters of two-dimensional echocardiography and left ventricular global area strain(GAS/AS), longitudinal strain(GLS/LS), radial strain(GRS/RS) and circumferential strain(GCS/CS) between groups and within groups were measured respectively. The correlations of GAS with the above parameters were analyzed. Results: ①Compared with control group, LVEDD, EDV, ESV and SPI of the patients with LVNC increased significantly(P<0.01), while IVSd, LVPWD and EF reduced significantly(P<0.01). ②Compared with control group, GAS, GLS, GRS and GCS reduced significantly(P<0.01). ③AS, LS, RS and CS at the level of the papillary muscle and the apical of noncompacted myocardium in patients with LVNC reduced compared with those of compacted segments at the same level(P<0.05). ④It showed a positive correlation between GAS and EF, and negative correlations between GAS and EDV as well as ESV and SPI. Conclusion: Left ventricular systolic function reduces in patients with LVNC with the most obvious reduction in the noncompacted segmental systolic function. 3D-STE can accurately assess left ventricular function in LVNC patients, which is a noninvasive and sensitive tool to detect regional systolic dysfunction of noncompacted myocardium.
吕慧娜;任卫东;孙 璐;毕文静;乔 伟;肖杨杰. 三维斑点追踪成像技术评价左心室心肌致密化不全患者左心室收缩功能[J]. , 2015, 26(4): 255-259.
LV Hui-na;REN Wei-dong;SUN Lu;BI Wen-jing;QIAO Wei;XIAO Yang-jie. Evaluation on left ventricular systolic function using three-dimensional speckle-tracking echocardiography in patients with left ventricular noncompaction. , 2015, 26(4): 255-259.