@inproceedings{2482545635954090a800a84abee9ce77,
title = "Reconstruction of undersampled dynamic spiral MR images",
abstract = "The temporal resolution of dynamic MRI can be increased by sampling a fraction of k-space in an interleaved fashion, which causes spatial and temporal aliasing. We describe algebraically the aliasing process caused by spiral undersampling to formulate unaliasing as a set of independent inverse problems. Since each linear system is severely ill-conditioned, zeros are assumed in the solution. Specifically the size and the location of assumed zeros necessary for obtaining a unique solution is inspected. To overcome the problems of excessive memory and computation time needed for direct inverse computation, a fast implementation of the conjugate gradient (CG) method is proposed. Simulation using dynamic spiral cardiac images demonstrates improved temporal resolution of the proposed method.",
author = "Taehoon Shin and Nielsen, {Jon F.} and Nayak, {Krishna S.}",
year = "2006",
language = "English",
isbn = "0780395778",
series = "2006 3rd IEEE International Symposium on Biomedical Imaging: From Nano to Macro - Proceedings",
pages = "9--12",
booktitle = "2006 3rd IEEE International Symposium on Biomedical Imaging",
note = "null ; Conference date: 06-04-2006 Through 09-04-2006",
}