Abstract #2429
In-vivo dual-phase cardiac DTI with 3D strain correction
Christian Torben Stoeck 1 , Aleksandra Kalinowska 2 , Constantin von Deuster 1,3 , Jack Harmer 3 , and Sebastian Kozerke 1,3
1
Institute for Biomedical Engineering,
University and ETH Zurich, Zurich, Switzerland,
2
Department
of Mechanical and Biomedical Engineering, Massachusetts
Institute of Technology, Cambridge, MA, United States,
3
Biomedical
Engineering and Imaging Sciences, King's College London,
London, United Kingdom
Cardiac Diffusion Tensor imaging using the Stimulated
Echo Acquisition Mode suffers from inherent myocardial
strain effects as diffusion is encoded across 2 R-R
intervals. Based on knowledge of the time course of
myocardial stretch patterns, diffusion tensor data can
be corrected for strain errors. In this work we present
a pipeline for deriving stretch tensor fields from
three-dimensional myocardial tagging images to correct
dual heart phase cardiac DTI data. Upon strain
correction, systolic and diastolic fiber architecture
acquired in the in-vivo human heart are compared.
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