【摘 要】
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ObjectiveToinvestigatethediagnosticvalueofsusceptibility-weightedimaginganddynamiccontrast-enhancedMRIinprostate cancer.Wedeterminedwhetherthedegreeofintralesionsusceptibilitye
【机 构】
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TongjiHospital,TongjiMedicalCollege,HuazhongUniversityofScience&Technology
【出 处】
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中华放射学学术大会2016、中华医学会第23次全国放射学学术大会暨中华医学会第24次全国影像技术学术大会
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ObjectiveToinvestigatethediagnosticvalueofsusceptibility-weightedimaginganddynamiccontrast-enhancedMRIinprostate cancer.Wedeterminedwhetherthedegreeofintralesionsusceptibilityeffect(SusE)onSWIcorrelateswithKtrans、KepandVe andtocompareitsdiagnosticaccuracyforprostatecancerwiththatofdynamiccontrast-enhancedMRI. MethodsSixty-fivepatientswithlowT2signalintheperipheralzoneunderwentbothSusceptibility–weightedimagingand dynamiccontrast-enhancedMRIat3Twereanalysedretrospectively.Accordingtotheresultsofbiopsy,thirty-twopatientsare prostatecancerandthirtythreeareprostatitise.ThedegreeofSusEandKtrans、KepandVewerecomparedbetweenthe prostatecancerandprostatitis.SpearmancorrelationcoefficientsweredeterminedbetweenthedegreeofSusE、KtransandKep. Receiveroperatingcharacteristic(ROC)curveanalyseswereperformedtodeterminethediagnosticaccuracyfordiagnosing prostatecancer. ResultsThedegreeofSusEshowedacorrelationwiththevalueofKtransandKepinthesamelesionsegments(r=0.419P<0.001 andr=0.219P=0.034).IntheROCcurveanalysisofhistopathologiccorrelationbyusingthedegreeofSusE、Ktrans、Kepthe optimalsensitivity,specificityfordeterminingtheprostatecancerwere73.68%、78.12%and78.95%、65.62%and84.21%、59.38%,respectively. ConclusionsThedegreeofSusEshowsacorrelationwiththevalueofKtrans、Kepinthesamelesionsegments,andits diagnosticperformanceforprostatecanceriscomparablewithDCE.
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