Figure 1.
Example of coronary flow Doppler signal during dypiridamole-induced hyperemia. S, systolic flow; D, diastolic flow.
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.