TY - GEN
T1 - First-pass perfusion cardiac MRI using the Partially Separable Functions model with generalized support
AU - Brinegar, Cornelius
AU - Zhang, Haosen
AU - Wu, Yi Jen L.
AU - Foley, Lesley M.
AU - Hitchens, T. Kevin
AU - Ye, Qing
AU - Ho, Chien
AU - Liang, Zhi Pei
PY - 2010
Y1 - 2010
N2 - Dynamic imaging methods based on the Partially Separable Functions (PSF) model have been used to perform ungated cardiac MRI, and the critical parameter determining the quality of the reconstructed images is the order, L, of the PSF model. This work extends previous methods by increasing L in the cardiac region to improve the ability of the PSF model to represent complex spatiotemporal signals. The resulting higher order PSF model is fit to sparse (k, t)-space data using spatial-spectral support, spatial-eigenbasis support, and spectral sparsity constraints. This new method is demonstrated in the context of 2D first-pass perfusion MRI in a healthy rat heart.
AB - Dynamic imaging methods based on the Partially Separable Functions (PSF) model have been used to perform ungated cardiac MRI, and the critical parameter determining the quality of the reconstructed images is the order, L, of the PSF model. This work extends previous methods by increasing L in the cardiac region to improve the ability of the PSF model to represent complex spatiotemporal signals. The resulting higher order PSF model is fit to sparse (k, t)-space data using spatial-spectral support, spatial-eigenbasis support, and spectral sparsity constraints. This new method is demonstrated in the context of 2D first-pass perfusion MRI in a healthy rat heart.
UR - http://www.scopus.com/inward/record.url?scp=78650844925&partnerID=8YFLogxK
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U2 - 10.1109/IEMBS.2010.5626078
DO - 10.1109/IEMBS.2010.5626078
M3 - Conference contribution
C2 - 21095705
AN - SCOPUS:78650844925
SN - 9781424441235
T3 - 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10
SP - 2833
EP - 2836
BT - 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10
T2 - 2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10
Y2 - 31 August 2010 through 4 September 2010
ER -