Isotropic diffusion weighting for measurement of a high-resolution apparent diffusion coefficient map using a single radial scan in MRI
DC Field | Value | Language |
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dc.contributor.author | Seo, Hyunseok | - |
dc.contributor.author | Choi, Joonsung | - |
dc.contributor.author | Oh, Changheun | - |
dc.contributor.author | Han, Yeji | - |
dc.contributor.author | Park, HyunWook | - |
dc.date.available | 2020-02-28T15:46:00Z | - |
dc.date.created | 2020-02-06 | - |
dc.date.issued | 2014-10-21 | - |
dc.identifier.issn | 0031-9155 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/12191 | - |
dc.description.abstract | This work proposes an isotropic diffusion weighting method for a high-resolution diffusion-weighted image and for a high-resolution apparent diffusion coefficient (ADC) map using a single radial scan in MRI. By using a conventional radial imaging technique, a high-resolution diffusion-weighted (DW) image can be obtained at the cost of a long imaging time. To reduce the imaging time, the proposed method acquires a DW image by altering the diffusion gradient directions for each radial spoke. The acquisition order and directions of the diffusion gradients for an accurate DW image and an ADC map are also proposed by modifying the golden angle ratio in 3D space. In addition, an individual-direction diffusion-weighted (id-DW) image can also be obtained by a diffusion gradient direction, which is one of the multiple directions used in isotropic diffusion weighting. Computer simulations and experiment results show that the proposed method is more accurate and faster than the conventional radial diffusion-weighted imaging. This study suggests that the proposed isotropic diffusion-weighted imaging can be used to obtain a DW image and a high-resolution ADC map accurately in a single radial scan, while reducing the artifacts caused by the diffusion anisotropy, compared to the diffusion-weighted echo-planar-imaging. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | IOP PUBLISHING LTD | - |
dc.relation.isPartOf | PHYSICS IN MEDICINE AND BIOLOGY | - |
dc.subject | PROJECTION RECONSTRUCTION | - |
dc.subject | HUMAN BRAIN | - |
dc.subject | SENSITIVITY | - |
dc.subject | REDUCTION | - |
dc.subject | STROKE | - |
dc.title | Isotropic diffusion weighting for measurement of a high-resolution apparent diffusion coefficient map using a single radial scan in MRI | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000343092300020 | - |
dc.identifier.doi | 10.1088/0031-9155/59/20/6289 | - |
dc.identifier.bibliographicCitation | PHYSICS IN MEDICINE AND BIOLOGY, v.59, no.20, pp.6289 - 6303 | - |
dc.identifier.scopusid | 2-s2.0-84907495382 | - |
dc.citation.endPage | 6303 | - |
dc.citation.startPage | 6289 | - |
dc.citation.title | PHYSICS IN MEDICINE AND BIOLOGY | - |
dc.citation.volume | 59 | - |
dc.citation.number | 20 | - |
dc.contributor.affiliatedAuthor | Han, Yeji | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | apparent diffusion coefficient (ADC) map | - |
dc.subject.keywordAuthor | diffusion anisotropy | - |
dc.subject.keywordAuthor | diffusion-weighted imaging (DWI) | - |
dc.subject.keywordAuthor | golden angle ratio | - |
dc.subject.keywordAuthor | radial imaging sequence | - |
dc.subject.keywordPlus | PROJECTION RECONSTRUCTION | - |
dc.subject.keywordPlus | HUMAN BRAIN | - |
dc.subject.keywordPlus | SENSITIVITY | - |
dc.subject.keywordPlus | REDUCTION | - |
dc.subject.keywordPlus | STROKE | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Radiology, Nuclear Medicine & Medical Imaging | - |
dc.relation.journalWebOfScienceCategory | Engineering, Biomedical | - |
dc.relation.journalWebOfScienceCategory | Radiology, Nuclear Medicine & Medical Imaging | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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