- Oral presentation
- Open Access
Comparative assessment of pediatric right ventricular volumes and function by MRI: right horizontal long axis versus short axis
© Soriano et al; licensee BioMed Central Ltd. 2013
- Published: 30 January 2013
- Right Ventricular
- Right Ventricular Volume
- Short Axis Orientation
- Reproducible Assessment
- Volumetric Calculation
Accurate and reproducible assessments of right ventricular (RV) size and function are important for clinical decisions. RV volume assessment by CMR has been traditionally performed using a short axis orientation (SAX). This projection, however, renders en-face views of the mitral and tricuspid valves. Distinction between atriums and ventricles can be difficult, which can complicate contour tracings for ventricular function. To improve reproducibility, alternative orientations for RV assessment have been proposed. This investigation sought to compare right horizontal long axis (RHLA) and SAX reproducibility in a pediatric cohort.
Inter-rater reliability (n=20)
Both RHLA and SAX measurements result in high inter- and intra- rater reproducibilities, with no clearly-defined advantage between the two approaches. RHLA EDV and ESV volumes tend to be 4-5% larger than those measured by SAX. These differences should be considered when applied to clinical decision-making.
This article is published under license to 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.