Speckle Tracking Echocardiography Verified the Efficacy of Qianyangyuyin Granules in Alleviating Left Ventricular Remodeling in a Hypertensive Rat Model

Figure 1

Representative pictures of (a) the 17-segment bull’s eye diagram and (b) longitudinal strain diagram of the apical 3-chamber view among 5 groups following speckle tracking echocardiography. Bull’s eye diagram (a) visually showed the global and 17-segmental longitudinal strains of LV. Red indicates the normal segmental strain value (absolute value), while the lighter color means the lower strain value. The lower the absolute value, the worse the mechanical systolic function of the cardiac segment. The bull’s eye diagram showed uniformly red in the WKY group, but many light red regions in the SHR group. The GLS value below the diagram was the average value of the 17-segmental strain in the bull’s eye diagram. Longitudinal strain diagram (b) showed the 6-segmental strain of a certain chamber (apical 2-, 3-, and 4-chamber views) and the strain curve of each segment with time. The strain curve of each segments was close to the same in WKY rats.

(a)

(b)