Figure 4
Potential role of aortic PTAs in reflecting arterial wave properties and predicting LV isovolumic pressure relaxation.
The arterial τw was significantly inversely related to the PTAs (A). By contrast, as the PTAs increased, the reflection intensity (arterial Rf) increased (B). A positive linear correlation existed between the LV τe and aortic PTAs (C), indicating that in diabetes, the PTAs increases and the prolonged LV τe slows the late pressure relaxation. LV, left ventricular; PTAs, systolic aortic pressure-time area; Rf, wave reflection factor; τe, time constant of the LV isovolumic pressure decay; τw, wave transit time.
