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JACC Cardiovasc Imaging. 2009 Jan;2(1):80-4. doi: 10.1016/j.jcmg.2007.12.007.

Myocardial strain measurement with 2-dimensional speckle-tracking echocardiography: definition of normal range.

Author information

1
University of Queensland, Department of Medicine, Princess Alexandra Hospital, Brisbane, Queensland, Australia. t.marwick@uq.edu.au

Abstract

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.

PMID:
19356538
DOI:
10.1016/j.jcmg.2007.12.007
[Indexed for MEDLINE]
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