DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Hyun-Soo | ko |
dc.contributor.author | Hwang, Seon-Ha | ko |
dc.contributor.author | Park, Jaeseok | ko |
dc.contributor.author | Park, Sung-Hong | ko |
dc.date.accessioned | 2021-12-01T06:40:28Z | - |
dc.date.available | 2021-12-01T06:40:28Z | - |
dc.date.created | 2021-07-02 | - |
dc.date.created | 2021-07-02 | - |
dc.date.issued | 2021-11 | - |
dc.identifier.citation | MAGNETIC RESONANCE IN MEDICINE, v.86, no.5, pp.2656 - 2665 | - |
dc.identifier.issn | 0740-3194 | - |
dc.identifier.uri | http://hdl.handle.net/10203/289759 | - |
dc.description.abstract | Purpose: To implement a single-shot centric-reordered EPI (1sh-CenEPI), which reduces TE significantly, thus enabling to improve SNR for magnetization-prepared imaging. Methods: We proposed a 1sh-CenEPI in which grouped oscillating readout gradients, phase-encoding blips within each group, and big phase-encoding jumps between two consecutive groups are incorporated to encode whole k-space from the center to the edges in a single shot. The concept was tested on phantoms and human brains at 3 T. In addition, the proposed reordering scheme was applied to pseudo-continuous arterial spin labeling for evaluating the efficiency of the centric reordering in magnetization-prepared imaging. Results: The proposed 1sh-CenEPI reduced TE from 50 ms to 1.4 ms for gradient-echo EPI, and from 100 ms to 7 ms for spin-echo EPI, while the elongation of readout duration was below 10% of the whole readout duration in most cases. The 1sh-CenEPI images exhibited no distinct geometric distortion both in phantom and human brain, comparable to the conventional two-shot center-out EPI. In pseudo-continuous arterial spin labeling results, 3-fold temporal SNR increase and 2-fold spatial SNR increase in the perfusion-weighted images were achieved with 1sh-CenEPI compared with the conventional linear ordering, whereas the cerebral blood flow values were consistent with previous studies. Conclusion: The proposed 1sh-CenEPI significantly reduced TE while maintaining similar readout window and providing images comparable to the conventional linear and multishot center-out EPI images. It can be a qualified candidate as a new readout for various magnetization-prepared imaging techniques. | - |
dc.language | English | - |
dc.publisher | WILEY | - |
dc.title | Single-shot pseudo-centric EPI for magnetization-prepared imaging | - |
dc.type | Article | - |
dc.identifier.wosid | 000667522900001 | - |
dc.identifier.scopusid | 2-s2.0-85111157140 | - |
dc.type.rims | ART | - |
dc.citation.volume | 86 | - |
dc.citation.issue | 5 | - |
dc.citation.beginningpage | 2656 | - |
dc.citation.endingpage | 2665 | - |
dc.citation.publicationname | MAGNETIC RESONANCE IN MEDICINE | - |
dc.identifier.doi | 10.1002/mrm.28897 | - |
dc.contributor.localauthor | Park, Sung-Hong | - |
dc.contributor.nonIdAuthor | Park, Jaeseok | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | centric reordering | - |
dc.subject.keywordAuthor | echo planar imaging | - |
dc.subject.keywordAuthor | magnetization-prepared imaging | - |
dc.subject.keywordAuthor | pCASL | - |
dc.subject.keywordAuthor | phase encoding order | - |
dc.subject.keywordPlus | DISTORTION | - |
dc.subject.keywordPlus | RECONSTRUCTION | - |
dc.subject.keywordPlus | ACQUISITION | - |
dc.subject.keywordPlus | PERFUSION | - |
dc.subject.keywordPlus | IMAGES | - |
dc.subject.keywordPlus | FLOW | - |
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