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Analytical method to measure three-dimensional strain patterns in the left ventricle from single slice displacement data

Moghaddam, Abbas Nasiraei and Saber, Nikoo R. and Wen, Han and Finn, J. Paul and Ennis, Daniel B and Gharib, Morteza (2010) Analytical method to measure three-dimensional strain patterns in the left ventricle from single slice displacement data. Journal of Cardiovascular Magnetic Resonance, 12 . Art. No. 33. ISSN 1532-429X. http://resolver.caltech.edu/CaltechAUTHORS:20100810-082451213

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Abstract

Background: Displacement encoded Cardiovascular MR (CMR) can provide high spatial resolution measurements of three-dimensional (3D) Lagrangian displacement. Spatial gradients of the Lagrangian displacement field are used to measure regional myocardial strain. In general, adjacent parallel slices are needed in order to calculate the spatial gradient in the through-slice direction. This necessitates the acquisition of additional data and prolongs the scan time. The goal of this study is to define an analytic solution that supports the reconstruction of the out-of-plane components of the Lagrangian strain tensor in addition to the in-plane components from a single-slice displacement CMR dataset with high spatio-temporal resolution. The technique assumes incompressibility of the myocardium as a physical constraint. Results: The feasibility of the method is demonstrated in a healthy human subject and the results are compared to those of other studies. The proposed method was validated with simulated data and strain estimates from experimentally measured DENSE data, which were compared to the strain calculation from a conventional two-slice acquisition. Conclusion: This analytical method reduces the need to acquire data from adjacent slices when calculating regional Lagrangian strains and can effectively reduce the long scan time by a factor of two.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1186/1532-429X-12-33 DOIUNSPECIFIED
http://www.jcmr-online.com/content/12/1/33PublisherUNSPECIFIED
Additional Information:© 2010 Moghaddam 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. Received: 12 January 2010. Accepted: 1 June 2010. Published: 1 June 2010. The authors acknowledge the assistance of Dr Juan Alvergue and Dr Alexander Sassani for helping with clinical part of the study. The authors acknowledge funding support from NIH-R00 HL087614 to DBE.
Group:GALCIT
Funders:
Funding AgencyGrant Number
NIHR00 HL087614
Record Number:CaltechAUTHORS:20100810-082451213
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20100810-082451213
Official Citation:Nasiraei Moghaddam et al.: Analytical method to measure three-dimensional strain patterns in the left ventricle from single slice displacement data. Journal of Cardiovascular Magnetic Resonance 2010 12:33.
Usage Policy: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.
ID Code:19359
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:10 Aug 2010 21:54
Last Modified:30 Sep 2016 17:35

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