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Full-Text Articles in Engineering
2d Cine Dense With Low Encoding Frequencies Accurately Quantifies Cardiac Mechanics With Improved Image Characteristics, Gregory J. Wehner, Jonathan D. Grabau, Jonathan D. Suever, Christopher M. Haggerty, Linyuan Jing, David Powell, Sean M. Hamlet, Moriel H. Vandsburger, Xiaodong Zhong, Brandon K. Fornwalt
2d Cine Dense With Low Encoding Frequencies Accurately Quantifies Cardiac Mechanics With Improved Image Characteristics, Gregory J. Wehner, Jonathan D. Grabau, Jonathan D. Suever, Christopher M. Haggerty, Linyuan Jing, David Powell, Sean M. Hamlet, Moriel H. Vandsburger, Xiaodong Zhong, Brandon K. Fornwalt
Biomedical Engineering Faculty Publications
BACKGROUND: Displacement Encoding with Stimulated Echoes (DENSE) encodes displacement into the phase of the magnetic resonance signal. The encoding frequency (ke) maps the measured phase to tissue displacement while the strength of the encoding gradients affects image quality. 2D cine DENSE studies have used a ke of 0.10 cycles/mm, which is high enough to remove an artifact-generating echo from k-space, provide high sensitivity to tissue displacements, and dephase the blood pool. However, through-plane dephasing can remove the unwanted echo and dephase the blood pool without relying on high ke. Additionally, the high sensitivity comes …