Conference proceeding
Acceleration of high angular and spatial resolution diffusion imaging using compressed sensing
2012 9th IEEE International Symposium on Biomedical Imaging (ISBI), pp.326-329
05/2012
DOI: 10.1109/ISBI.2012.6235550
Abstract
Achieving simultaneously high angular and spatial resolution in diffusion imaging is challenging because of the long acquisition times involved. We propose a novel compressed sensing method to acquire high angular and spatial resolution diffusion imaging data, while keeping the scan time reasonable. We show that joint under sampling of 6-D k-q space is more efficient than undersampling only one of the dimensions. We use a sparse Gaussian mixture model and an iterative reconstruction scheme to recover the peaks of the orientation distribution functions (ODF) with high accuracy. We show that at least 6-fold acceleration of acquisition is possible, thereby enabling high angular and spatial resolution diffusion imaging in a reasonable scan time.
Details
- Title: Subtitle
- Acceleration of high angular and spatial resolution diffusion imaging using compressed sensing
- Creators
- M Mani - Univ. of Rochester, Rochester, NY, USAM Jacob - Univ. of Iowa, Iowa City, IA, USAA Guidon - Duke Univ., Durham, NC, USAC Liu - Duke Univ., Durham, NC, USAA Song - Duke Univ., Durham, NC, USAV Magnotta - Univ. of Iowa, Iowa City, IA, USAJ Zhong - Univ. of Rochester, Rochester, NY, USA
- Resource Type
- Conference proceeding
- Publication Details
- 2012 9th IEEE International Symposium on Biomedical Imaging (ISBI), pp.326-329
- Publisher
- IEEE
- DOI
- 10.1109/ISBI.2012.6235550
- ISSN
- 1945-7928
- eISSN
- 1945-8452
- Language
- English
- Date published
- 05/2012
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Radiology; Electrical and Computer Engineering; Iowa Neuroscience Institute; Radiation Oncology; Psychiatry
- Record Identifier
- 9984066391202771
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