Evaluation of left ventricular rotation and twist in uremia patients by two-dimensional ultrasound speckle tracking imaging
10.3760/cma.j.issn.1004-4477.2009.03.006
- VernacularTitle:超声斑点追踪成像评价尿毒症患者左心室旋转和扭转运动
- Author:
Shuzhen WANG
;
Mingxing XIE
;
Xinfang WANG
;
Qing Lü
;
Xiaofang LU
;
Yali YANG
;
Hong MA
;
Weiqin LI
;
Yuman LI
;
Lan JIANG
- Publication Type:Journal Article
- Keywords:
Echoeardiography;
Uremia;
Ventricular function,left;
Speckle tracking imaging
- From:
Chinese Journal of Ultrasonography
2009;18(3):202-205
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the left ventricular(LV) rotation and twist by two-dimensional ultrasound speckle-tracking imaging(STI),and evaluate the correlation between twist and other components of LV contraction in uremia patients. Methods Twenty-nine uremia patients and twenty-nine healthy volunteers were included. High frame rate two-dimensional images were recorded from the left ventricular short-axis views both of the basal and apical planes. Segmental and global LV rotation were recorded at both The peak systolic LV twist was significantly decreased in uremia patients(P <0. 001). The loss of LV twist occurred mainly by the impairment of maximal global counterclockwise apical rotation(P <0. 001),and was augmented by somewhat less reduction in global clockwise basal rotation although the differences was not significantly reduced(P<0.01), while only the posterior and inferior of the basal plane was significantly fraction(r=0.645,P=0.000), LV end-diastolic volume (r=-0.549,P=0.002), LV end-systolic volume(r=-0.673, P = 0.000) in uremia patients. Conclusions STI enables quantification of segmental and global LV rotation in an objective manner in uremia patients,and provides a new method for evaluation of segmental and global LV systolic function.
