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Hepatic macrosteatosis: predicting appropriateness of liver donation by using MR imaging--correlation with histopathologic findings

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dc.contributor.authorKim, Se Hyung-
dc.contributor.authorLee, Jeong Min-
dc.contributor.authorHan, Joon Koo-
dc.contributor.authorLee, Jae Young-
dc.contributor.authorLee, Kyoung Ho-
dc.contributor.authorHan, Chang Jin-
dc.contributor.authorJo, Jae Young-
dc.contributor.authorYi, Nam-Joon-
dc.contributor.authorSuh, Kyung-Suk-
dc.contributor.authorShin, Kyung-Sook-
dc.contributor.authorJo, Soo Yeon-
dc.contributor.authorChoi, Byung Ihn-
dc.date.accessioned2009-10-01T05:27:44Z-
dc.date.available2009-10-01T05:27:44Z-
dc.date.issued2006-05-11-
dc.identifier.citationRadiology 2006;240(1):116-129en
dc.identifier.issn0033-8419(Print)-
dc.identifier.issn1527-1315 (Electronic)-
dc.identifier.urihttp://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=16684918-
dc.identifier.urihttp://hdl.handle.net/10371/10019-
dc.description.abstractPURPOSE: To retrospectively evaluate the diagnostic performance of magnetic resonance (MR) imaging in predicting the appropriateness of liver donation in potential living liver donors by using histopathologic results as the reference standard. MATERIALS AND METHODS: This study was approved by institutional review board; all patients gave informed consent for the use of MR data for future research. Fifty-seven potential liver donors (40 male, 17 female; age range, 17-57 years; mean age, 32 years) underwent dual-echo 1.5-T MR imaging. Two radiologists qualitatively graded each MR image, with consensus for disagreements. Livers were assigned one of three degrees of hepatic steatosis on the basis of changes in hepatic signal intensity (SI) between in-phase and opposed-phase images. For quantitative analysis, a third radiologist calculated mean hepatic and mean splenic SI by averaging 25 hepatic regions of interest and three splenic regions of interest. Relative SI decrease (RSID) in the liver on opposed-phase images compared with in-phase images was calculated. Linear regression analysis was used to correlate RSID with the degree of total steatosis, macrosteatosis, and microsteatosis. Diagnostic performance for predicting the appropriateness of liver donation was analyzed. RESULTS: Histologic findings of macrosteatosis resulted in 52 patients being categorized as appropriate donors, with the remaining five being categorized as inappropriate donors. RSID was correlated with total steatosis (r = 0.850). When the RSID criterion for inappropriateness of liver donation was set at 20%, the sensitivity, specificity, and accuracy were 100%, 92.3%, and 93%, respectively. When RSID was used, four livers that had been misclassified as inappropriate for transplantation were found to have microsteatosis of various degrees and a less than moderate degree of macrosteatosis at histologic analysis. Qualitative and quantitative analyses were comparably accurate. CONCLUSION: When an RSID criterion of less than 20% was used, dual-echo MR imaging facilitated the correct prediction of appropriateness of liver donation in 53 of 57 patients.en
dc.language.isoenen
dc.publisherRadiological Society of North Americaen
dc.subjectBiopsy/methodsen
dc.subjectFatty Liver/classification/*pathologyen
dc.subjectImage Interpretation, Computer-Assisteden
dc.subject*Liver Transplantation/methodsen
dc.subject*Living Donorsen
dc.subject*Magnetic Resonance Imagingen
dc.subjectRadiology Information Systemsen
dc.subjectRetrospective Studiesen
dc.subjectSensitivity and Specificityen
dc.subjectPreoperative Careen
dc.titleHepatic macrosteatosis: predicting appropriateness of liver donation by using MR imaging--correlation with histopathologic findingsen
dc.typeArticleen
dc.contributor.AlternativeAuthor김세형-
dc.contributor.AlternativeAuthor이정민-
dc.contributor.AlternativeAuthor한준구-
dc.contributor.AlternativeAuthor이재영-
dc.contributor.AlternativeAuthor이경호-
dc.contributor.AlternativeAuthor한창진-
dc.contributor.AlternativeAuthor조재영-
dc.contributor.AlternativeAuthor이남준-
dc.contributor.AlternativeAuthor서경석-
dc.contributor.AlternativeAuthor조수연-
dc.contributor.AlternativeAuthor최병인-
dc.identifier.doi10.1148/radiol.2393042218-
Appears in Collections:
College of Medicine/School of Medicine (의과대학/대학원)Radiology (영상의학전공)Journal Papers (저널논문_영상의학전공)
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