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.
Deformation imaging with exercise can provide insights into subtle cardiac dysfunction. In this example, resting longitudinal strain assessed by 2D speckle tracking echocardiography is reduced in both patients. However, in the healthy heart strain increases from −14 to −23% but in the heart with abnormal contractility the strain does not augment with exercise. Furthermore, note that in the abnormal heart, the peak strain becomes progressively more delayed.
