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.
(A) Arbitrary cylindrical coordinate system along the longitudinal (l), circumferential (c), and radial (r) directions of the left ventricle used to project the strain. (B) Representation of the helical orientation of the myofiber (f) from endocardium to epicardium. Please note that myofibers are not continuous throughout the heart.
