Novel wall motion score-based method for estimating global left ventricular ejection fraction: validation by real-time 3D echocardiography and global longitudinal strain

European Journal of Echocardiography : the Journal of the Working Group on Echocardiography of the European Society of Cardiology
Vittorio PalmieriAldo Celentano

Abstract

To evaluate the reliability of a regional wall motion score index (WMSI)-based method for assessment of left ventricular (LV) ejection fraction (EF). Two-dimensional (2D) echocardiography was used to assess a LV 16-segment-based regional wall motion. Each segment received a score based on contractility status: 4, normal kinesis; 3, mild; 2.5, moderate; and 1.5, severe hypo-kinesis; 0, akinesis; -1, dyskinesis; 3.5 and 4.5 were used for low-normal and high-normal kinesis; 5 for hyper-kinesis. Hence, WMSI-based EF was derived by summing the score assigned to each segment. Contextually, EF was evaluated by real-time three-dimensional (3D) echocardiography and by traditional Simpson's method (2D). Global longitudinal strain (GLS) by speckle-tracking method was derived as a volume-independent indicator of LV chamber contractility sensitive to regional wall motion abnormalities. In 40 subjects with 3D-EF ranging from 14 to 80%, including clinically healthy hypertensive and patients with Stage B-D congestive heart failure with global or segmental wall motion abnormalities, on average, WMSI-EF did not differ from EF measured by 3D or 2D (all P > 0.5). By intraclass correlation coefficients, reliability of WMSI-EF vs. 3D method was as g...Continue Reading

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Citations

Aug 4, 2011·European Journal of Echocardiography : the Journal of the Working Group on Echocardiography of the European Society of Cardiology·Nisha MistryReidar Bjørnerheim
Nov 8, 2015·Circulation. Cardiovascular Imaging·Vittorio PalmieriRiccardo Pini
Nov 11, 2021·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Flemming Javier OlsenTor Biering-Sørensen

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