Figure 1.
Measurement of maximum left ventricular (LV) pressure slope and the two heart sound (HS)‐based systolic time intervals, namely, HS‐based pre‐ejection period and HS‐based ejection time.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.