Detection of cholesteatoma: high-resolution DWI using RS-EPI and parallel imaging at 3 tesla

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dc.citation.epage394en_US
dc.citation.issueNumber6en_US
dc.citation.spage388en_US
dc.citation.volumeNumber44en_US
dc.contributor.authorAlgin, O.en_US
dc.contributor.authorAydın, H.en_US
dc.contributor.authorOzmen E.en_US
dc.contributor.authorOcakoglu, G.en_US
dc.contributor.authorBercin, S.en_US
dc.contributor.authorPorter, D. A.en_US
dc.contributor.authorKutluhan, A.en_US
dc.date.accessioned2018-04-12T11:10:56Z
dc.date.available2018-04-12T11:10:56Z
dc.date.issued2017en_US
dc.departmentNational Magnetic Resonance Research Center (UMRAM)en_US
dc.description.abstractThe purpose of this study is to evaluate the impact of RS-EPI-DWI in the detection of cholesteatoma and to compare with single-shot echo-planar DWI (SS-EPI-DWI). Diffusion-weighted and apparent diffusion-coefficient (ADC) images were obtained using RS-EPI and SS-EPI techniques in 30 patients. Presence of cholesteatoma (3 point scale), amount of artefacts (4 point scale), visibility (4 point scale), and ADC values of the lesions were assessed. The results of both techniques were compared with each other and gold-standard (GS) test results. Lesion visibility and presence of artefact scores of RS-EPI-DWI group were significantly different from those of the SS-EPI group. RS-EPI-DWI images had fewer artefacts and higher visibility scores. The sensitivity, specificity, negative/positive-predictive, and overall-agreement values of RS-EPI-DWI technique were 100%, 78%, 100%, 74%, and 87%; respectively. These values for SS-EPI-DWI technique were 91%, 60%, 88%, 67%, and 75%; respectively. Also, these values were higher on axial plane than coronal plane images for ADC measurements. Based on gold-standard test findings, agreement values were good (κ = 0.74) for RS-EPI-DWI and moderate for SS-EP-DWI (κ = 0.50) techniques (P < 0.001 for both). The RS-EPI-DWI technique allows a higher spatial-resolution and this technique is less susceptible to artefacts when compared with SS-EPI technique. © 2017 Elsevier Masson SASen_US
dc.identifier.doi10.1016/j.neurad.2017.05.006en_US
dc.identifier.issn0150-9861
dc.identifier.urihttp://hdl.handle.net/11693/37351
dc.language.isoEnglishen_US
dc.publisherElsevier Masson SASen_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/j.neurad.2017.05.006en_US
dc.source.titleJournal of Neuroradiologyen_US
dc.subjectCholesteatomaen_US
dc.subjectDiffusion-weighted imagingen_US
dc.subjectReadout-segmented EPIen_US
dc.subjectRESOLVEen_US
dc.subjectSingle-shot EPIen_US
dc.subjectprospective studyen_US
dc.titleDetection of cholesteatoma: high-resolution DWI using RS-EPI and parallel imaging at 3 teslaen_US
dc.typeArticleen_US

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