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Conference Paper: A Novel Compressed Sensing Multi-Slice Cartesian MRI via Alternating Phase Encoding Directions for Acceleration and Flexible Undersampling
Title | A Novel Compressed Sensing Multi-Slice Cartesian MRI via Alternating Phase Encoding Directions for Acceleration and Flexible Undersampling |
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Authors | |
Issue Date | 2020 |
Publisher | International Society of Magnetic Resonance Imaging (ISMRM) . |
Citation | Proceedings of the 28th Annual Meeting & Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM), Virtual Conference, 8-14 August 2020, paper no. 3448 How to Cite? |
Abstract | In conventional compressed sensing (CS) multi-slice Cartesian 2D imaging, the undersampling is performed along phase-encoding direction only, leading to coherent 1D aliasing that significantly limits the effectivess of CS for acceleration. This study proposes a multi-slice CS reconstruction method to take advantage of extremely augmented sampling incoherence created by orthogonally alternating phase-encoding directions among adjacent slices. The multi-slice CS approach was evaluated with single-channel brain T1W and T2W datasets. The results demonstrate significant improvements with both pseudo-random and uniform undersampling. This new method will also greatly augment the existing 2D CS parallel imaging technqiues for very high acceleration. |
Description | Digital Poster Session: Acquisition, Reconstruction & Analysis: Novel Acquisition, Reconstruction, and Analysis: Novel Acquisitions & Reconstructions: Sparse & Low-Rank - paper no. 3448 |
Persistent Identifier | http://hdl.handle.net/10722/289871 |
DC Field | Value | Language |
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dc.contributor.author | Yi, Z | - |
dc.contributor.author | Liu, Y | - |
dc.contributor.author | Chen, F | - |
dc.contributor.author | Wu, EX | - |
dc.date.accessioned | 2020-10-22T08:18:40Z | - |
dc.date.available | 2020-10-22T08:18:40Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Proceedings of the 28th Annual Meeting & Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM), Virtual Conference, 8-14 August 2020, paper no. 3448 | - |
dc.identifier.uri | http://hdl.handle.net/10722/289871 | - |
dc.description | Digital Poster Session: Acquisition, Reconstruction & Analysis: Novel Acquisition, Reconstruction, and Analysis: Novel Acquisitions & Reconstructions: Sparse & Low-Rank - paper no. 3448 | - |
dc.description.abstract | In conventional compressed sensing (CS) multi-slice Cartesian 2D imaging, the undersampling is performed along phase-encoding direction only, leading to coherent 1D aliasing that significantly limits the effectivess of CS for acceleration. This study proposes a multi-slice CS reconstruction method to take advantage of extremely augmented sampling incoherence created by orthogonally alternating phase-encoding directions among adjacent slices. The multi-slice CS approach was evaluated with single-channel brain T1W and T2W datasets. The results demonstrate significant improvements with both pseudo-random and uniform undersampling. This new method will also greatly augment the existing 2D CS parallel imaging technqiues for very high acceleration. | - |
dc.language | eng | - |
dc.publisher | International Society of Magnetic Resonance Imaging (ISMRM) . | - |
dc.relation.ispartof | Proceedings of International Society for Magnetic Resonance in Medicine (ISMRM) Virtual Conference, 2020 | - |
dc.title | A Novel Compressed Sensing Multi-Slice Cartesian MRI via Alternating Phase Encoding Directions for Acceleration and Flexible Undersampling | - |
dc.type | Conference_Paper | - |
dc.identifier.email | Wu, EX: ewu@eee.hku.hk | - |
dc.identifier.authority | Wu, EX=rp00193 | - |
dc.identifier.hkuros | 316619 | - |
dc.identifier.spage | 3448 | - |
dc.identifier.epage | 3448 | - |