超声衍生脂肪分数评估代谢相关脂肪性肝病中国专家共识（2025版）
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Chinese expert consensus on the use of ultrasound derived fat fraction in the assessment of metabolic dysfunction-associated steatotic liver disease (2025 Edition)
ChineseSocietyofUtrasoundinMedicine,NationalClinicalResearchCenterforAgingandMedicine,NationalMedicalCenterfor
InfectiousDisease,tteofUrasoundMedicineandEngineingofudanUnversityanghaiEngineingReseachCtef UltrasoundDiagnosisandTreatment,ShanghaiMedicalAssociation UltrasoundMedicineBranch,ShanghaiMedicalDoctor Asociation UltrasoundPhysician Branch,UltrasoundProfessonalCommiteeof theChineseWomenDoctors Association
ABSTRACTMetabolic dysfunction-associated steatotic liver disease(MASLD）has become one of the leading causes of chronicliverdiseasesinChinaandevenglobaly.Earlynon-invasivediagnosisandgrading MASLD,along withtimely intervention,recrucialforasessing thediseaseconditionandslowingthediseaseprogression.Inrecent years,nonivasive techniquesforassessingliversteatosiscontentbasedonultrasoundhaveatracedsignificantatention.Theultrasoundderivedfat fraction(UDFF）isanemergingquantitativetechiqueforliverfatassessmentusingultrasound,whichcalculates thepercentage valueoftefatcontentbyanalyzingtheradiofrequencysignalsreflectedfromthelivertissue,therebyquantifyingthedegreeof liversteatosis.UDFFsowssignificant potential inassessing liversteatosis.However,tecurrentapplicationguidelinesbasedon thistechnologydonotyetfullmeettheclinicalneeds.Tofurtherstandardizeitsclinicalapplication,institutionssuchasthe Ultrasound MedicineBranchoftheChineseMedicalAssociation,the National ClinicalResearch CenterforAgingandMedicine, andtheInstituteof UltrasoundMedicineandEngineeringofFudanUniversity，togetherwithmultidisciplinaryexperts ultrasound,endocrinologyadiology,ndhepatologyfromacrossChinahaveformulatedthis“Cineseexpertconsensusonthe useofultrasoundderivedfatfactionintheasssmentofmetabolicdysfunction-aoiatedsteatoticliverdisease(O5dition）” basedonthe lastestclinicalapplicationadvancesofthe UDFFtechnology.Thisconsensus standardizesthe clinical scopeof applicationandscenariosofthistechnology.Itoptimizesthetechnicaloperationprocessinvariousaspects，includingpre examinationpreparation,theoperationprocess,qualitycontrol,thenumberofmeasurementsresultpresentationformat,and influencingfctorsaswelleanile,itsummarizscuentliicalresearchesultsimingtonsurethesandardizationofthe UDFF technology in clinical applications.
KEYWORDSMetabolicdysfunction-associated steatotic liverdisease;Ultrasoundderivedfatfraction;Liversteatosis; Expert consensus
代谢功能障碍相关脂肪性肝病（metabolicdysfunction-associatedsteatoticliverdisease，MASLD)亦称代谢相关脂肪性肝病，已成为中国乃至全球慢性肝病的主要病因之一。（剩余29597字）
