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European Journal of Echocardiography 2008 9(2):255-260; doi:10.1016/j.euje.2007.03.037
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Published on behalf of the European Society of Cardiology. All rights reserved. © The Author 2007. For permissions please email: journals.permissions@oxfordjournals.org

Rapid and accurate measurement of LV mass by biplane real-time 3D echocardiography in patients with concentric LV hypertrophy: comparison to CMR{dagger}

Sing-Chien Yap1,*, Robert-Jan M. van Geuns1,2, Attila Nemes1, Folkert J. Meijboom1, Jackie S. McGhie1, Marcel L. Geleijnse1, Maarten L. Simoons1 and Jolien W. Roos-Hesselink1

1 Department of Cardiology, Thoraxcentre, Erasmus MC, Rotterdam, The Netherlands
2 Department of Radiology, Erasmus MC, Rotterdam, The Netherlands

Received 28 January 2007; accepted after revision 25 March 2007; online publish-ahead-of-print 9 July 2007.

* Corresponding author. Erasmus MC, Thoraxcentre, Department of Cardiology, Room Ba308, 's-Gravendijkwal 230, 3015 CE Rotterdam, The Netherlands. Tel: +31 10 463 2432; fax: +31 10 463 5498.E-mail address: s.c.yap{at}erasmusmc.nl (S.-C. Yap).


  Abstract

Aims: To evaluate the accuracy of real-time three-dimensional echocardiography (RT3DE) using a biplane and multiplane method in determining left ventricular (LV) mass compared to cardiac magnetic resonance imaging (CMR).

Methods and results: LV mass was measured in 18 adult patients with congenital aortic stenosis using CMR and echocardiography (M-mode, two-dimensional echocardiography (2DE), and RT3DE). RT3DE data were analysed using a biplane and multiplane method. No geometric assumptions were necessary using the multiplane RT3DE method.

With regard to biplane or multiplane RT3DE, no tendency of over- or underestimation of LV mass was observed. Pearson's correlation coefficients for RT3DE versus CMR were 0.84 and 0.90 for the biplane and multiplane method, respectively. In addition, the accuracy of both RT3DE methods were comparable (Fisher's R-to-Z transformation: Z = 0.69, P = NS). Finally, off-line analysis using biplane RT3DE was significantly faster than multiplane RT3DE (3.8 ± 1.2 vs. 7.8 ± 1.7 minutes, P < 0.001).

Conclusions: Biplane RT3DE provided an accurate estimate of LV mass in patients with concentric left ventricular hypertrophy, which was not improved by multiplane RT3DE. The accuracy and speed of analysis renders biplane RT3DE an attractive tool in daily clinical practice for assessing the degree of LV hypertrophy.

Keywords: Three-dimensional echocardiography; Left ventricular hypertrophy; Magnetic resonance imaging; Aortic valve stenosis

{dagger} Funding: The Netherlands Organisation for Health Research and Development provided funding for Dr Yap (920-03-405).


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