Key result
A fast MRI technique combining harmonic phase and strain encoded imaging successfully measured three-dimensional myocardial strains in two short breath-holds in a normal volunteer.
A novel fast MRI technique combining HARP and SENC can measure 3D myocardial strains in multiple slices within two short breath-holds.
In this paper we describe a fast magnetic resonance imaging (MRI) technique that can be used to measure the evolution of three-dimensional myocardial strains in multiple stacks of left-ventricular short axis (SA) slices. The SA slices are selectively tagged with planes of magnetic saturation. The MR data is then acquired using a fast imaging technique that combines the principles of previously demonstrated harmonic phase (HARP) and strain encoded (SENC) imaging methodologies to measure the in-plane circumferential and radial strains, and the out-of-plane longitudinal strains in two short breath-holds. Strain measurements in eight regions at representative time frames in five SA slices in a normal volunteer are presented.
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Sampath et al. (2005) studied Healthy volunteer (n=1). Fast MRI technique combining HARP and SENC was evaluated on Measurement of in-plane circumferential and radial strains, and out-of-plane longitudinal strains. A fast MRI technique combining harmonic phase and strain encoded imaging successfully measured three-dimensional myocardial strains in two short breath-holds in a normal volunteer.
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