Title |
Validation of in vivo 2D displacements from spiral cine DENSE at 3T
|
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Published in |
Critical Reviews in Diagnostic Imaging, January 2015
|
DOI | 10.1186/s12968-015-0119-z |
Pubmed ID | |
Authors |
Gregory J Wehner, Jonathan D Suever, Christopher M Haggerty, Linyuan Jing, David K Powell, Sean M Hamlet, Jonathan D Grabau, Walter Dimitri Mojsejenko, Xiaodong Zhong, Frederick H Epstein, Brandon K Fornwalt |
Abstract |
Displacement Encoding with Stimulated Echoes (DENSE) encodes displacement into the phase of the magnetic resonance signal. Due to the stimulated echo, the signal is inherently low and fades through the cardiac cycle. To compensate, a spiral acquisition has been used at 1.5T. This spiral sequence has not been validated at 3T, where the increased signal would be valuable, but field inhomogeneities may result in measurement errors. We hypothesized that spiral cine DENSE is valid at 3T and tested this hypothesis by measuring displacement errors at both 1.5T and 3T in vivo. |
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