Diffusion Weighted MRI for Hepatic Fibrosis: Impact of b-Value

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dc.authoriderturk, sukru mehmet/0000-0003-4086-675X
dc.authoridKaratag, Ozan/0000-0002-0606-6364
dc.authoridAlkim, Canan/0000-0002-6388-518X
dc.contributor.authorOzkurt, Huseyin
dc.contributor.authorKeskiner, Firat
dc.contributor.authorKaratag, Ozan
dc.contributor.authorAlkim, Canan
dc.contributor.authorErturk, Sukru Mehmet
dc.contributor.authorBasak, Muzaffer
dc.date.accessioned2025-01-27T20:43:37Z
dc.date.available2025-01-27T20:43:37Z
dc.date.issued2014
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractBackground: Hepatic fibrosis is a typical complication of chronic liver diseases resulting in cirrhosis that remains a major public health problem worldwide. Liver biopsy is currently the gold standard for diagnosing and staging hepatic fibrosis. Percutaneous liver biopsy; however, is an invasive procedure with risks of complications. Therefore, there is need for alternative non-invasive techniques to assess liver fibrosis and chronic liver diseases. In recent years, MRI techniques, including diffusion weighted imaging (DWI), have been developed for in vivo quantification of liver fibrosis. Objectives: The purpose of this study is to evaluate the utility of diffusion weighted MRI in the diagnosis and quantification of the degree of hepatic fibrosis and to investigate the influence of b-value. Patients and Methods: Twenty-four patients (13 males, 11 females), with a mean age of 46 years (36-73 years) diagnosed as chronic hepatitis and histopathologically proven liver fibrosis and 22 other patients (8 males, 14 females) with no clinical or biochemical findings of liver disease, with a mean age of 51.2 years (32-75 years) were included in the study. All patients with chronic hepatitis underwent percutaneous liver biopsy by an experienced hepatologist without sonographic guidance. The Knodell histology activity index (HAI) for grading of necroinflammatory changes and Metavir scoring system for staging of the liver fibrosis were used to record the severity of the disease. All patients were examined with a 1.5 Tesla MRI system and the patients underwent diffusion weighted imaging (DWI) with a routine hepatic MRI protocol. Different b-values including 250, 500, 750, and 1000 sec/mm(2) were used to calculate apparent diffusion coefficients. Results: We detected decreased apparent diffusion coefficient values in patients with hepatic fibrosis compared to patients without chronic hepatitis and there was a trend toward decrease in hepatic apparent diffusion coefficient values with an increasing degree of fibrosis. Conclusions: Our findings suggest that hepatic apparent diffusion coefficient measurement with a b-value of 750 sec/mm(2) or greater is useful in accurate quantification of liver fibrosis and necroinflammation.
dc.identifier.doi10.5812/iranjradiol.3555
dc.identifier.issn1735-1065
dc.identifier.issn2008-2711
dc.identifier.issue1
dc.identifier.pmid24693297
dc.identifier.scopus2-s2.0-84897450620
dc.identifier.scopusqualityQ4
dc.identifier.urihttps://doi.org/10.5812/iranjradiol.3555
dc.identifier.urihttps://hdl.handle.net/20.500.12428/24299
dc.identifier.volume11
dc.identifier.wosWOS:000343525100004
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherKowsar Publ
dc.relation.ispartofIranian Journal of Radiology
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectLiver Cirrhosis
dc.subjectMagnetic Resonance Imaging
dc.subjectDiffusion Magnetic Resonance Imaging
dc.titleDiffusion Weighted MRI for Hepatic Fibrosis: Impact of b-Value
dc.typeArticle

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