Abstract #2639
In Vivo Spin Echo EPI Cardiac Diffusion Tensor MRI Using Ultrahigh Gradient Amplitudes
Eric Aliotta 1,2 , Stanislas Rapacchi 1 , Peng Hu 1 , and Daniel Ennis 1,2
1
Radiological Sciences, UCLA, Los Angeles,
CA, United States,
2
Biomedical
Physics IDP, UCLA, Los Angeles, CA, United States
The purpose was to improve the robustness to bulk motion
of spin-echo (SE) cardiac diffusion tensor MRI (DTI) by
using ultrahigh maximum gradient amplitudes
(Gmax=80mT/m, G80) and a biophysical reconstruction
constraint algorithm (BRCA). We found that G80+BRCA
offers more accurate ADC and FA quantification and
produces a more homogeneous ADC map in accordance with
the literature. Shorter diffusion preparation times made
possible with ultrahigh gradients combined with a
biophysical reconstruction constraint algorithm (BRCA)
improved the robustness to bulk motion of cardiac DTI.
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