Journal
JACC-CARDIOVASCULAR IMAGING
Volume 2, Issue 1, Pages 80-84Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jcmg.2007.12.007
Keywords
regional left ventricular function; strain; speckle tracking
Funding
- General Electric Medical Systems, Horten, Norway
- General Electric Medical Systems
- Princess Alexandra Hospital Foundation, Brisbane, Australia
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The interpretation of wall motion is an important component of echocardiography but remains a source of variation between observers. It has been believed that automated quantification of left ventricular (LV) systolic function by measurement of LV systolic strain from speckle-tracking echocardiography might be helpful. This multicenter study of nearly 250 volunteers without evidence of cardiovascular disease showed an average LV peak systolic strain of -18.6 +/- 0.1%. Although strain was influenced by weight, blood pressure, and heart rate, these features accounted for only 16% of variance. However, there was significant segmental variation of regional strain to necessitate the use of site-specific normal ranges. (J Am Coll Cardiol Img 2009;2:80-4) (C) 2009 by the American College of Cardiology Foundation
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