158·中国CT和MRI杂志2023年02月第21卷第02期总第160期【第一作者】李鸿恩，男，主管技师，主要研究方向：胎儿磁共振诊断及技术。E-mail：137842241@qq.com【通讯作者】张嫣，女，主任医师，主要研究方向：胎儿及乳腺磁共振诊断。E-mail：doctorzhangyan@vip.163.com论著ComparativeStudyof3.0TMagneticResonanceB-FFEandSWISequenceinFetalSpineImaging*LIHong-en,LINXing,WANGXia,ZENGYi-hui,JIANGKui-ming,ZHANGYan*.DepartmentofRadiology,GuangdongWomen'sandChildren'sHospital,Guangzhou51000,,GuangdongProvince,ChinaABSTRACTObjectiveTostudythediagnosticvalueof3.0TMRIbalancefastfieldecho(B-FFE)andsusceptibilityweightedimaging(SWI)sequenceinfetalspine,forprenataldiagnosisProvidedataanalysisandreference.MethodsAtotalof54pregnantwomenwereselectedfromOctober2019toMarch2020inourhospitalwithprenataldiagnosisindicatingfetalspinalabnormalitiesandultrasoundexaminations.Use3.0Tmagneticresonancetoscanthefetalspine.ThescansequenceincludestheB-FFEandSWIsequencesatthethreepositionsoftheaxialcoronalvector.Thediagnosticaccuracyandinspectionsuccessrateofthetwosequencesarecomparedandanalyzed,andthespecificabsorptionrateofthetwosequencesisrecorded(thespecificabsorptionrate(SAR)value.ResultsAmong54patients,thediagnosticaccuracyratesofB-FFEandSWIsequencegroupswere88.88%and70.37%,respectively,andthedifferencewasstatisticallysignificant(χ2=5.708,P<0.05).Intermsofinspectionsuccessrate:ThesuccessratesofB-FFEandSWsequenceswere92.59%and55.56%,respectively,andthedifferencewasstatisticallysignificant(χ2=21.027,P<0.001).IntermsofSARvalue:B-FFEandSWIsequenceswere2.0±0.05w/kgand<0.1w/kg,respectively.ConclusionB-FFEandSWIsequencecomparison,bothcandisplayimagesoffetalspinalproblemsverywell,andbothhaveahighdiagnosticaccuracyrate.TheB-FFEsequenceexaminationhasahighersuccessrateandcanobtainstableandclearimages.ItisslightlyinferiortotheSWIsequenceinshowingthefetalspinecontour.SWIhasanabsoluteadvantageinshowingthelumbosacralsegmentofthefetus,buttheexaminationsuccessrateislower.,Itcangreatlyimprovetheaccuracyoffetalspineimagingdiagn...
