Assessment of left ventricular systolic function and synchrony with two dimensional speckle tracking imaging in patients with coronary artery stenosis
HAN Su-hua
ZHANG Xiao-hua
MENG Guang-ming
Abstract：Objective To assess the clinical value of two‐dimensional speckle tracking imaging (2D‐STI) in evaluating left ventricular global systolic function and synchrony in patients with differerent degrees of coronary artery stenosis . Methods All patients were divided into 3 groups according to angiocardiography :group I including 22 patients with 50%~ 75% coronary artery stenosis ,group Ⅱ including 18 patients with ≥ 76% coronary artery stenosis ,and group Ⅲ inclu‐ding 40 subjects with no coronary artery stenosis as control groups .All patients were performed by 2D‐STI ,Offline analy‐sis was carried out in Qlab 8 .1 to require the systolic function parameters GLS (global longitudinal strain) ,GRS(global radial strain) ,GCS(global circumferential strain) and synchrony parameters Tls‐l6‐SD (standard deviation of times to peak longitudinal strain of 16 LV segments) ,Trs‐12‐SD(standard deviation of times to peak radial strain of 12 LV segments) , Tcs‐l2‐SD(standard deviation of times to peak circumferential strain of 12 LV segments) .Results Compared with control group ,conventional echocardiography had no positive manifestations in group I ,while GLS was significantly decreased , Tls‐16‐SD was significantly prolonged performed by 2D‐STI ( P < 0 .05) .Compared with group Ⅰ and control group , conventional echocardiography and 2D‐STI respectively had significantly positive manifestations in group Ⅱ .Conclusion 2D‐STI can early assess LV systolic function and synchrony in patients with mild degree of coronary artery stenosis .
Keywords：Coronary artery stenosisSpeckle tracking imagingVentricular systolic functionEchocardiography
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 1170-1173 )