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1、TheroleofMRCPi13preoperativeClassificationofhilarcholangiocarcinomasGraduateStudentforMasterYingyuan—ningTutor:HanYueVice—tutor:yanglian—haiDepartmentofradiology,TianjinMedicalUniversitySecondHospitalAbstractMR‘cholangiopancreatography(MRCP)wasundertakenforpreoperativeexaminationin26casesofh
2、ifarch01angiocarcinoma(HC)inthisstudy.WeanalyzedtheimagingfindingsofMRCP,andcompareditwiththeresultsofpathologyandthepatternofsurgery.Ourobjectiveswere:1.tosummarizetheimagingfeaturesofMRCP,andtoevaluateitsadvantageanddisadvantageinthediagnosisofHC;2.toevaluatetheaccuracyoftheClassifications
3、withMRCPanditsroleinthepredictionoftumorresectabilityofHC.3.tomeasurethe1engthofproximalbileductabovethelesion,andobservetheconfluenceofthehepatiChilarbileductsFinallywediscusseditsvalueinthejudgmentofthepossiblilityofthebiliary—entericanastomosesandthechoiceofthesurgerymanagement.Thisarticl
4、eisdividedintotwoparts:1.MRCPfeaturesofhilarcholangiocarcinoma.TheimagingfeaturesofHCin26caseswithsurgicalandpathologicconfirmationwerereported.OurdiscussioncenteredontheimagingfeaturesofMRCP.a(chǎn)ndtherelationbetweentheMRCPimagingfeaturesandthegrosspathologicalappearances.Ingeneralthefindingson
5、MRCPcouldbeclassifiedasthreetypes:obstruction,stenosisandfillingdefects.ThegrosspathologicalappearancesofHCcouldbeclassifiedasfourtypes.TheimagingfindingsofMRCPweredifferentamongthefourtypes:Polypoidtypelesionappeared8tSfillingdefectonMRCP;tuberculartypelesionoccultedthe6ductonMRCP:mostinfil
6、tratingtype1esionsshowedastenoticandonlyafewwiththeblockedduct:SClerosa]typelesiOffeitherblockedornarrowedtheduet.MRCPCOUldconfirmthelevelofbileobstructionwithanaccuracyof96%inthisarticle.TheaccordanceofMRCPinassessingtumorinvolvementwas81%.ButMRCPitselfiSunabletomadeahistologicaldiagnosis.M
7、RCPcoulddeterminetheleveloftheobstructionandtheinvolvedextentoftheproximalbileMRCPcouldclearlyshowthedegreeofdilatation.TheseprovidedtheguaranteetoclassificationofHCwithMRCP.2.TheroleofMRCPinpreoperativeclassificationofhilarcholangiocarcinomas.Base