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1、低场MRI诊断卵巢巧克力囊肿价值探讨作者：孙多成,夏雨,陈传明,谢景盼单位：南方医科大学附属中山博爱医院影像中心【摘要】目的探讨卵巢巧克力囊肿低场MRI表现及其诊断价值。方法46例49个卵巢巧克力囊肿均作MR扫描和B超检查，全部病例经手术和病理证实。结果49例卵巢巧克力囊肿因出血时间不同囊液的MRI信号不同，T1WI高信号（与脂肪相等）39个，稍高（低于脂肪）信号6个，低信号4个，囊壁呈等信号；T2WT与STIR信号相似，囊液均匀稍低信号40个，混杂信号9个（其中夹杂高信号5个，夹杂更低信号4个），囊壁低信号；单囊20个，多囊29个，囊壁不规则2
2、4个（其中有尖角10个，有分叶4个），囊壁规则24个。低场MRI术前诊断49个卵巢巧克力囊肿，47个与病理相符，2个病理诊断为囊腺瘤；B超术前诊断卵巢巧克力囊肿38个，未定性6个，未发现病变5个。结论MRI和B超对诊断卵巢巧克力囊肿的检出敏感性100%(49/49)、89%(44/49)，特异性96%(47/49)、77.6%(38/49)，P值＜0.05，具有显著差异，说明低场MRI对卵巢巧克力囊肿定性诊断优于B超。【关键词】磁共振成像;卵巢巧克力囊肿；术前诊断；敏感性；特异性Valueoflow-fieldMRIindiagnosisofCh
3、ocolatecystofovarySUNDuo-cheng,XIAYu,CHENChuan-ming,etal.CentreofImaging,ZhongshanBoaiAffiliatedHospitalofSouthernMedicalUniversity,Zhongshan528403,China[Abstract]ObjectiveTodiscussthemanifestationanddiagnosticvalueofMRIforChocolatecystsofovary.MethodsWithin46cases,49Chocolat
4、ecystsofovarywereexaminedbyMRIandBultrasound,allofthecaseswereconfirmedbyoperationandpathology.ResultsTheMRIsignalofhydatidfluidwasdifferentbecauseofthedifferentbleedingtimeofChocolatecystofovary.ForT1WIsignal39caseswerethehighsignal(equalwiththefat),6casesweretheslightlyhigh
5、signal(lowerthanfat),and4caseswerelowsignal,allofwhichthecapsulewallwasequalsignal.TheT2WTsignalwassimilartoSTIR.40casesofhydatidfluidwereslightlylowsignal.9caseswereconfoundingsignal,with5caseshighsignal,4caseslowsignal,thecapsulewallwaslowsignal.20casesweresignalcyst,29case
6、sweremulti-cyst.24caseshaveirregularcapsulewall,with10casescuspangleand4casessublobe,24caseshaveregulativecapsulewall.Low-magneticfieldMRIplaysanimportantpreoperativediagnosticvaluetoovarianchocolatecyst,47casesamongthetotalwerematchedwithpathologicaldiagnosis,2caseswerecysta
7、denomaconfirmedbypathologicaldiagnosis.While38ovarianchocolatecystsof46patientswereconfirmedbyB-ultrasonicscanningbeforeoperation,6caseswereuncertain,5caseswerenormal.ConclusionDiagnosticsensitivitytoovarianchocolatecystviaMRIandB-ultrasonicscanningwererespectively100%and89%,
8、specificitywererespectively96%and77.6%,Pvalue<0.05,theresultstell
