Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
2939339 | JACC: Cardiovascular Imaging | 2009 | 5 Pages |
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.
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Authors
Thomas H. Marwick, Rodel L. Leano, Joseph Brown, Jing-Ping Sun, Rainer Hoffmann, Peter Lysyansky, Michael Becker, James D. Thomas,