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Quantitative evaluation of liver cirrhosis using T1 relaxation time with 3 tesla MRI before and after oxygen inhalation

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dc.contributor.author김명진-
dc.contributor.author박미숙-
dc.contributor.author김경아-
dc.contributor.author정우석-
dc.contributor.author김기황-
dc.date.accessioned2014-12-19T17:11:36Z-
dc.date.available2014-12-19T17:11:36Z-
dc.date.issued2012-
dc.identifier.issn1053-1807-
dc.identifier.urihttps://ir.ymlib.yonsei.ac.kr/handle/22282913/90949-
dc.description.abstractPURPOSE: To quantify liver T1 relaxation times before and after oxygen inhalation in patients with and without liver cirrhosis using a 3 Tesla (T) MRI. MATERIALS AND METHODS: Institutional Review Board approval and written informed consent were obtained. Ninety-two noncirrhotic patients and 87 patients with hepatitis B viral liver cirrhosis (72 Child-Pugh class A and 15 Child-Pugh class B or C) underwent MRI with a 3.0T system before and after the supply of 100% oxygen at a rate of 15 L/min by means of a nonrebreather ventilation mask for 3 min. T1 maps were acquired using three-dimensional spoiled gradient echo sequences with two different flip angles (2° and 14°) and a fixed TR/TE (2.54 ms/0.95 ms). Liver T1 values were obtained using a T1 processing tool (MapIT software). The mean baseline T1 values of three groups (control, Child-Pugh class A, and Child-Pugh class B/C) were compared using an analysis of variance test. Liver T1 value before and after oxygenation was compared using a paired t-test for each group. RESULTS: The baseline liver T1 value was significantly higher in the control group (941 ± 136 ms) than in Child-Pugh A (858 ± 143 ms) and Child-Pugh B/C (783 ± 164 ms) group (P < 0.001 and P < 0.0001). The reduction in the liver T1 value after oxygen inhalation was significant in the control group (P = 0.012) but not significant in Child-Pugh class A (P = 0.079) and Child-Pugh class B/C (P = 0.752). CONCLUSION: The baseline liver T1 relaxation time was significantly different between the patients with and without liver cirrhosis. The shortening effect of oxygen on the liver T1 value was significant in the control group but not in the cirrhotic patients.-
dc.description.statementOfResponsibilityopen-
dc.relation.isPartOfJOURNAL OF MAGNETIC RESONANCE IMAGING-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/2.0/kr/-
dc.subject.MESHAdministration, Inhalation-
dc.subject.MESHAdult-
dc.subject.MESHAged-
dc.subject.MESHContrast Media/administration & dosage-
dc.subject.MESHFemale-
dc.subject.MESHHumans-
dc.subject.MESHLiver/drug effects-
dc.subject.MESHLiver/physiopathology*-
dc.subject.MESHLiver Cirrhosis/pathology*-
dc.subject.MESHLiver Cirrhosis/physiopathology*-
dc.subject.MESHMagnetic Resonance Imaging/methods*-
dc.subject.MESHMale-
dc.subject.MESHMiddle Aged-
dc.subject.MESHOxygen/administration & dosage*-
dc.titleQuantitative evaluation of liver cirrhosis using T1 relaxation time with 3 tesla MRI before and after oxygen inhalation-
dc.typeArticle-
dc.contributor.collegeCollege of Medicine (의과대학)-
dc.contributor.departmentDept. of Radiology (영상의학)-
dc.contributor.googleauthorKyung Ah Kim-
dc.contributor.googleauthorMi-Suk Park-
dc.contributor.googleauthorIn-Seong Kim-
dc.contributor.googleauthorBerthold Kiefer-
dc.contributor.googleauthorWoo-Suk Chung-
dc.contributor.googleauthorMyeong-Jin Kim-
dc.contributor.googleauthorKi Whang Kim-
dc.identifier.doi22392835-
dc.admin.authorfalse-
dc.admin.mappingfalse-
dc.contributor.localIdA00426-
dc.contributor.localIdA01463-
dc.contributor.localIdA03666-
dc.contributor.localIdA00345-
dc.contributor.localIdA00301-
dc.relation.journalcodeJ01567-
dc.identifier.eissn1522-2586-
dc.identifier.pmid22392835-
dc.identifier.urlhttp://onlinelibrary.wiley.com/doi/10.1002/jmri.23620/abstract-
dc.subject.keywordmagnetic resonance imaging-
dc.subject.keywordT1 relaxationtime-
dc.subject.keywordliver cirrhosis-
dc.subject.keywordoxygenation-
dc.contributor.alternativeNameKim, Myeong Jin-
dc.contributor.alternativeNamePark, Mi Sook-
dc.contributor.alternativeNameKim, Kyung Ah-
dc.contributor.alternativeNameChung, Woo Seok-
dc.contributor.alternativeNameKim, Ki Whang-
dc.contributor.affiliatedAuthorKim, Myeong Jin-
dc.contributor.affiliatedAuthorPark, Mi-Suk-
dc.contributor.affiliatedAuthorChung, Woo Seok-
dc.contributor.affiliatedAuthorKim, Ki Whang-
dc.contributor.affiliatedAuthorKim, Kyung Ah-
dc.citation.volume36-
dc.citation.number2-
dc.citation.startPage405-
dc.citation.endPage410-
dc.identifier.bibliographicCitationJOURNAL OF MAGNETIC RESONANCE IMAGING, Vol.36(2) : 405-410, 2012-
dc.identifier.rimsid33235-
dc.type.rimsART-
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers

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