Analysis of Images According to the Fluid Velocity in Time-of-Flight Magnetic Resonance Angiography, and Contrast Enhancement Angiography
DC Field | Value | Language |
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dc.contributor.author | Kim, Eng-Chan | - |
dc.contributor.author | Heo, Yeong-Cheol | - |
dc.contributor.author | Cho, Jae-Hwan | - |
dc.contributor.author | Lee, Hyun-Jeong | - |
dc.contributor.author | Lee, Hae-Kag | - |
dc.date.accessioned | 2021-08-11T22:45:32Z | - |
dc.date.available | 2021-08-11T22:45:32Z | - |
dc.date.issued | 2014-06 | - |
dc.identifier.issn | 1226-1750 | - |
dc.identifier.issn | 2233-6656 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/12153 | - |
dc.description.abstract | In this study we evaluated that flow rate changes affect the (time of flight) TOF image and contrast-enhanced (CE) in a three-dimensional TOF angiography. We used a 3.0T MR System, a nonpulsatile flow rate model. Saline was used as a fluid injected at a flow rate of 11.4 cm/sec by auto injector. The fluid signal strength, phantom body signal strength and background signal strength were measured at 1, 5, 10, 15, 20 and 25-th cross-section in the experienced images and then they were used to determine signal-to-noise ratio and contrast-to-noise ratio. The inlet, middle and outlet length were measured using coronal images obtained through the maximum intensity projection method. As a result, the length of inner cavity was 2.66 mm with no difference among the inlet, middle and outlet length. We also could know that the magnification rate is 49-55.6% in inlet part, 49-59% in middle part and 49-59% in outlet part, and so the image is generally larger than in the actual measurement. Signal-to-noise ratio and contrast-to-noise ratio were negatively correlated with the fluid velocity and so we could see that signal-to-noise ratio and contrast-to-noise ratio are reduced by faster fluid velocity. Signal-to-noise ratio was 42.2-52.5 in 5-25th section and contrast-to-noise ratio was from 34.0-46.1 also not different, but there was a difference in the 1st section. The smallest 3D TOF MRA measure was 2.51 +/- 0.12 mm with a flow velocity of 40 cm/s. Consequently, 3D TOF MRA tests show that the faster fluid velocity decreases the signal-to-noise ratio and contrast-to-noise ratio, and basically it can be determined that 3D TOF MRA and 3D CE MRA are displayed larger than in the actual measurement. | - |
dc.format.extent | 7 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | 한국자기학회 | - |
dc.title | Analysis of Images According to the Fluid Velocity in Time-of-Flight Magnetic Resonance Angiography, and Contrast Enhancement Angiography | - |
dc.type | Article | - |
dc.publisher.location | 대한민국 | - |
dc.identifier.doi | 10.4283/JMAG.2014.19.2.185 | - |
dc.identifier.scopusid | 2-s2.0-84903373982 | - |
dc.identifier.wosid | 000338271300016 | - |
dc.identifier.bibliographicCitation | Journal of Magnetics, v.19, no.2, pp 185 - 191 | - |
dc.citation.title | Journal of Magnetics | - |
dc.citation.volume | 19 | - |
dc.citation.number | 2 | - |
dc.citation.startPage | 185 | - |
dc.citation.endPage | 191 | - |
dc.type.docType | Article | - |
dc.identifier.kciid | ART001883206 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | MAXIMUM-INTENSITY-PROJECTION | - |
dc.subject.keywordPlus | INTRACRANIAL VASCULAR STENOSIS | - |
dc.subject.keywordPlus | MR-ANGIOGRAPHY | - |
dc.subject.keywordPlus | COMPUTED-TOMOGRAPHY | - |
dc.subject.keywordPlus | OCCLUSION | - |
dc.subject.keywordPlus | DISEASE | - |
dc.subject.keywordAuthor | TOF angiography | - |
dc.subject.keywordAuthor | fluid velocity | - |
dc.subject.keywordAuthor | length of inner cavity | - |
dc.subject.keywordAuthor | signal-to-noise ratio | - |
dc.subject.keywordAuthor | contrast-to-noise ratio | - |
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