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Conference Paper: Robust Virtual Coil SAKE with Automatic Rank Thresholding for Removal of EPI Ghost Artifacts
| Title | Robust Virtual Coil SAKE with Automatic Rank Thresholding for Removal of EPI Ghost Artifacts |
|---|---|
| Authors | |
| Issue Date | 2018 |
| Publisher | International Society for Magnetic Resonance in Medicine. |
| Citation | Proceedings of International Society for Magnetic Resonance in Medicine & The European Society for Magnetic Resonance in Medicine and Biology (ISMRM-ESMRMB) Joint Annual Meeting, Paris, France, 16-21 June 2018, abstract no. 4125 How to Cite? |
| Abstract | Ghost artifacts in EPI can arise from phase error between positive- and negative-echo and inter-shot phase error. Virtual coil SAKE (VC-SAKE) can be used to eliminate these phase errors simultaneously, but its performance relies on selection of parameters. In particular, proper rank thresholding is extremely important. In this study, we proposed to automatically determine the optimal rank threshold by minimizing the image entropy, and evaluated its performance with various datasets from different scanner systems. |
| Description | e-Poster Session: Acquisition, Reconstruction & Analysis - Motion & Artefact Correction - Abstract #4125 |
| Persistent Identifier | http://hdl.handle.net/10722/260722 |
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | XU, Z | - |
| dc.contributor.author | LYU, M | - |
| dc.contributor.author | LIU, Y | - |
| dc.contributor.author | Barth, M | - |
| dc.contributor.author | Wu, EX | - |
| dc.date.accessioned | 2018-09-14T08:46:20Z | - |
| dc.date.available | 2018-09-14T08:46:20Z | - |
| dc.date.issued | 2018 | - |
| dc.identifier.citation | Proceedings of International Society for Magnetic Resonance in Medicine & The European Society for Magnetic Resonance in Medicine and Biology (ISMRM-ESMRMB) Joint Annual Meeting, Paris, France, 16-21 June 2018, abstract no. 4125 | - |
| dc.identifier.uri | http://hdl.handle.net/10722/260722 | - |
| dc.description | e-Poster Session: Acquisition, Reconstruction & Analysis - Motion & Artefact Correction - Abstract #4125 | - |
| dc.description.abstract | Ghost artifacts in EPI can arise from phase error between positive- and negative-echo and inter-shot phase error. Virtual coil SAKE (VC-SAKE) can be used to eliminate these phase errors simultaneously, but its performance relies on selection of parameters. In particular, proper rank thresholding is extremely important. In this study, we proposed to automatically determine the optimal rank threshold by minimizing the image entropy, and evaluated its performance with various datasets from different scanner systems. | - |
| dc.language | eng | - |
| dc.publisher | International Society for Magnetic Resonance in Medicine. | - |
| dc.relation.ispartof | ISMRM-ESMRMB Joint Annual Meeting 2018 | - |
| dc.title | Robust Virtual Coil SAKE with Automatic Rank Thresholding for Removal of EPI Ghost Artifacts | - |
| dc.type | Conference_Paper | - |
| dc.identifier.email | Wu, EX: ewu@eee.hku.hk | - |
| dc.identifier.authority | Wu, EX=rp00193 | - |
| dc.identifier.hkuros | 291518 | - |
| dc.identifier.spage | abstract no. 4125 | - |
| dc.identifier.epage | abstract no. 4125 | - |
| dc.publisher.place | United States | - |