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Diffusion-Weighted MR Imaging of Upper Abdomen: Comparison of Breath-Hold, Free-Breathing, and Respiratory-Triggered Techniques
DC Field | Value | Language |
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dc.contributor.author | 김기황 | - |
dc.contributor.author | 김주희 | - |
dc.contributor.author | 유정식 | - |
dc.contributor.author | 정재준 | - |
dc.date.accessioned | 2014-12-20T17:24:21Z | - |
dc.date.available | 2014-12-20T17:24:21Z | - |
dc.date.issued | 2011 | - |
dc.identifier.issn | 1738-2637 | - |
dc.identifier.uri | https://ir.ymlib.yonsei.ac.kr/handle/22282913/94541 | - |
dc.description.abstract | PURPOSE: To compare the image quality and stability of apparent diffusion coefficient (ADC) in diffusion-weighted MRI (DWI) of the upper abdomen among the breath-hold (BH), free-breathing (FB) and respiratory-triggered (RT) techniques. MATERIALS AND METHODS: We analyzed the qualitative and quantitative parameters of 204 consecutive patients who underwent DWI (BH-DWI, FB-DWI or RT-DWI; n=68 in each technique). Qualitative parameters included liver contour, vascular landmarks, intra-slice homogeneity, and inter-slice discontinuity on DWI with a b-factor of 800 s/mm2 and a four-grade scale. Quantitative parameters included inter-slice or intraslice inhomogeneity of ADC in the spleen. RESULTS: RT-DWI showed better liver contour compared to BH-DWI (p < 0.001) or FB-DWI (p = 0.001). As for the quality of the vascular landmarks, BH-DWI was inferior to FB-DWI (p = 0.025) and RT-DWI (p < 0.001). FB-DWI had the poorest result (p < 0.001) for inter-slice discontinuity compared to the other techniques. FB-DWI showed significantly larger inter-slice differences between the highest and the lowest ADCs in the spleen compared with those of RT-DWI (p < 0.001). Intra-slice homogeneity was significantly better in RT-DWI and FB-DWI than in BH-DWI (p < 0.001). CONCLUSION: Compared with BH or FB techniques, RT-DWI appears to result in the best imaging by providing better anatomic detail without skipping continuous slices, in addition to more homogeneous ADCs | - |
dc.description.statementOfResponsibility | open | - |
dc.format.extent | 465~473 | - |
dc.language | Korean | - |
dc.publisher | 대한영상의학회 | - |
dc.relation.isPartOf | Journal of the Korean Society of Radiology | - |
dc.rights | CC BY-NC-ND 2.0 KR | - |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/2.0/kr/ | - |
dc.title | Diffusion-Weighted MR Imaging of Upper Abdomen: Comparison of Breath-Hold, Free-Breathing, and Respiratory-Triggered Techniques | - |
dc.title.alternative | 상복부의 확산강조자기공명영상: 호흡정지기법, 자유호흡기법, 호흡유발기법간의 비교 | - |
dc.type | Article | - |
dc.contributor.college | College of Medicine (의과대학) | - |
dc.contributor.department | Dept. of Radiology (영상의학) | - |
dc.contributor.googleauthor | Kyung Eun Cho | - |
dc.contributor.googleauthor | Jeong-Sik Yu | - |
dc.contributor.googleauthor | Jae-Joon Chung | - |
dc.contributor.googleauthor | Joo Hee Kim | - |
dc.contributor.googleauthor | Ki Whang Kim | - |
dc.admin.author | false | - |
dc.admin.mapping | false | - |
dc.contributor.localId | A00951 | - |
dc.contributor.localId | A00345 | - |
dc.contributor.localId | A02500 | - |
dc.contributor.localId | A03712 | - |
dc.relation.journalcode | J01843 | - |
dc.identifier.eissn | 2288-2928 | - |
dc.subject.keyword | Abdomen | - |
dc.subject.keyword | Liver | - |
dc.subject.keyword | Spleen | - |
dc.subject.keyword | Magnetic Resonance Imaging | - |
dc.subject.keyword | Diffusion Magnetic Resonance Imaging | - |
dc.contributor.alternativeName | Kim, Ki Whang | - |
dc.contributor.alternativeName | Kim, Joo Hee | - |
dc.contributor.alternativeName | Yu, Jeong Sik | - |
dc.contributor.alternativeName | Chung, Jae Joon | - |
dc.contributor.affiliatedAuthor | Kim, Joo Hee | - |
dc.contributor.affiliatedAuthor | Kim, Ki Whang | - |
dc.contributor.affiliatedAuthor | Yu, Jeong Sik | - |
dc.contributor.affiliatedAuthor | Chung, Jae Joon | - |
dc.rights.accessRights | free | - |
dc.citation.volume | 64 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 465 | - |
dc.citation.endPage | 473 | - |
dc.identifier.bibliographicCitation | Journal of the Korean Society of Radiology, Vol.64(5) : 465-473, 2011 | - |
dc.identifier.rimsid | 27400 | - |
dc.type.rims | ART | - |
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