Strain and strain rate analysis of the right ventricle in patients with hypoplastic left heart syndrome
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POSTER PRESENTATION
Open Access
Strain and strain rate analysis of the right ventricle in patients with hypoplastic left heart syndrome Andrew W Hoyer*, Thomas L Ratchford, Jiade Yu From 2011 SCMR/Euro CMR Joint Scientific Sessions Nice, France. 3-6 February 2011 Introduction Assessment of right ventricular (RV) function in patients with hypoplastic heart syndrome (HLHS) is essential, but echocardiographic assessment remains largely subjective and RV volume quantification by CMR is time consuming.
Purpose To determine whether software designed for analysis of echocardiograms can be adapted to evaluate strain and strain rate of the RV in CMR images from patients with HLHS.
Figure 1 Screen shot from analysis program; curve of longitudinal strain is shown.
University of Virginia, Charlottesville, VA, USA
© 2011 Hoyer et al; licensee BioMed Central Ltd. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Hoyer et al. Journal of Cardiovascular Magnetic Resonance 2011, 13(Suppl 1):P207 http://jcmr-online.com/content/13/S1/P207
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Methods Axial SSFP cine images from 10 patients status post Norwood-Sano procedure were analyzed using Siemens Vector Velocity Imaging software after each study’s DICOM header had been modified. Longitudinal and radial strain and strain rate were calculated for the segment of RV myocardium at the right AV groove. 6 patients were female; median age was 3 months; mean weight was 5.5 kg. Results The mean longitudinal strain of the RV at the AV groove is -7.1% while the mean strain rate is -0.9 s-1; the mean radial strain is 3.1% and the mean strain rate is -1.4 s-1. Figure 1 Conclusions Indices of myocardial performance (strain and strain rate) can be analyzed from SSFP cine images using a program designed to evaluate echocardiograms, offering the potential for improved assessment of the RV in patients with HLHS. Published: 2 February 2011
doi:10.1186/1532-429X-13-S1-P207 Cite this article as: Hoyer et al.: Strain and strain rate analysis of the right ventricle in patients with hypoplastic left heart syndrome. Journal of Cardiovascular Magnetic Resonance 2011 13(Suppl 1):P207.
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