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Conference Paper: EPI Nyquist ghost removal by incorporating iterative k-space based phase error estimation and correction with SPIRiT (PEC-SPIRiT)

TitleEPI Nyquist ghost removal by incorporating iterative k-space based phase error estimation and correction with SPIRiT (PEC-SPIRiT)
Authors
LIU, YLYU, MXIE, VBWu, EX
Issue Date2018
PublisherInternational 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. 4214 How to Cite?
AbstractEPI acquisition suffers from Nyquist ghost due to inconsistency between opposite readout directions. As proposed in our previous work, such inconsistency induced phase error can be removed by incorporating the Phase Error Correction with SENSE (PEC-SENSE). In this study, we employ a k-space based phase error estimation, and remove the EPI Nyquist ghost by incorporating phase error correction with SPIRiT (PEC-SPIRiT). Here, a FLASH scan is used for calibration. The proposed method was evaluated using both phantom and in vivo studies, demonstrating its robustness against distortion mismatch and at high accelerations.
Descriptione-Poster Session: Acquisition, Reconstruction & Analysis - System Imperfections & Artifacts: Characterization & Correction - Abstract #4214
Persistent Identifierhttp://hdl.handle.net/10722/261184

 

DC FieldValueLanguage
dc.contributor.authorLIU, Y-
dc.contributor.authorLYU, M-
dc.contributor.authorXIE, VB-
dc.contributor.authorWu, EX-
dc.date.accessioned2018-09-14T08:53:53Z-
dc.date.available2018-09-14T08:53:53Z-
dc.date.issued2018-
dc.identifier.citationProceedings 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. 4214-
dc.identifier.urihttp://hdl.handle.net/10722/261184-
dc.descriptione-Poster Session: Acquisition, Reconstruction & Analysis - System Imperfections & Artifacts: Characterization & Correction - Abstract #4214-
dc.description.abstractEPI acquisition suffers from Nyquist ghost due to inconsistency between opposite readout directions. As proposed in our previous work, such inconsistency induced phase error can be removed by incorporating the Phase Error Correction with SENSE (PEC-SENSE). In this study, we employ a k-space based phase error estimation, and remove the EPI Nyquist ghost by incorporating phase error correction with SPIRiT (PEC-SPIRiT). Here, a FLASH scan is used for calibration. The proposed method was evaluated using both phantom and in vivo studies, demonstrating its robustness against distortion mismatch and at high accelerations.-
dc.languageeng-
dc.publisherInternational Society for Magnetic Resonance in Medicine.-
dc.relation.ispartofISMRM-ESMRMB Joint Annual Meeting 2018-
dc.titleEPI Nyquist ghost removal by incorporating iterative k-space based phase error estimation and correction with SPIRiT (PEC-SPIRiT)-
dc.typeConference_Paper-
dc.identifier.emailWu, EX: ewu@eee.hku.hk-
dc.identifier.authorityWu, EX=rp00193-
dc.identifier.hkuros291505-
dc.identifier.spageabstract no. 4214-
dc.identifier.epageabstract no. 4214-
dc.publisher.placeUnited States-

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