K-space reconstruction of magnetic resonance inverse imaging (K-InI) of human visuomotor systems.

NeuroImage
Fa-Hsuan LinJohn W Belliveau

Abstract

Using simultaneous measurements from multiple channels of a radio-frequency coil array, magnetic resonance inverse imaging (InI) can achieve ultra-fast dynamic functional imaging of the human with whole-brain coverage and a good spatial resolution. Mathematically, the InI reconstruction is a generalization of parallel MRI (pMRI), which includes image space and k-space reconstructions. Because of the auto-calibration technique, the pMRI k-space reconstruction offers more robust and adaptive reconstructions compared to the image space algorithm. Here we present the k-space InI (K-InI) reconstructions to reconstruct the highly accelerated BOLD-contrast fMRI data of the human brain to achieve 100 ms temporal resolution. Simulations show that K-InI reconstructions can offer 3D image reconstructions at each time frame with reasonable spatial resolution, which cannot be obtained using the previously proposed image space minimum-norm estimates (MNE) or linear constraint minimum variance (LCMV) spatial filtering reconstructions. The InI reconstructions of in vivo BOLD-contrast fMRI data during a visuomotor task show that K-InI offer 3 to 5 fold more sensitive detection of the brain activation than MNE and a comparable detection sensitiv...Continue Reading

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Citations

Jun 27, 2014·PloS One·Fa-Hsuan LinJohn W Belliveau
Sep 29, 2011·Human Brain Mapping·Fa-Hsuan LinJohn W Belliveau
Oct 26, 2012·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Rasim Boyacioğlu, Markus Barth
Dec 12, 2012·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Mark Chiew, Simon J Graham
Feb 14, 2012·NeuroImage·Kevin Wen-Kai TsaiFa-Hsuan Lin
Jan 31, 2012·NeuroImage·Fa-Hsuan LinJohn W Belliveau
Oct 18, 2011·NeuroImage·Jürgen Hennig
Dec 7, 2017·Scientific Reports·Yi-Cheng HsuFa-Hsuan Lin
Oct 23, 2019·Autism Research : Official Journal of the International Society for Autism Research·Ville RaatikainenVesa Kiviniemi
Dec 10, 2016·Frontiers in Neuroscience·Suzanne T WittMaria Engström
Nov 2, 2011·Materials·Markus Barth, Benedikt A Poser
Oct 21, 2020·Magma·Juergen HennigPierre LeVan
Feb 7, 2017·NeuroImage·Cameron TrappStefan Posse

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