ThevalueofdiffusionGweighted MRinthedifferentialdiagnosisofovarianepithelialtumors
10.3969/j.issn.1002-1671.2019.05.025
- VernacularTitle:MR扩散加权成像对卵巢上皮性肿瘤的鉴别诊断价值
- Author:
Daoming YUAN
1
Author Information
1. 东莞常安医院放射科
- Keywords:
ovarianepithelialtumors;
diffusionweightedimaging;
apparentdiffusioncoefficient
- From:
Journal of Practical Radiology
2019;35(5):788-790
- CountryChina
- Language:Chinese
-
Abstract:
Objective ToinvestigatethevalueofDWIinthedifferentialdiagnosisofmalignantovarianepithelialtumorsfrombenign ovarianepithelialtumors.Methods MRimagesof34patientswithovarianepithelialtumorsconfirmedbypathologywereanalyzed retrospectively.ThemeanADCvaluesofthesolidpartsofthetumorsweremeasured,comparedandanalyzedstatisticallybetweenthe benignandmalignantovarianepithelialtumors.Results ThesignalintensityofsolidpartsonDWIwassignificantlyhigherinmalignant ovarianepithelialtumorsthanthatinbenignovarianepithelialtumors(P＜0.05).Whenthebvaluewassetas0s/mm2,400s/mm2, 600s/mm2and800s/mm2,thesolidcomponentsofbenignovarianepithelialtumorsdidnotshowrestricteddiffusion,with mean ADCvalueof (1.52±0.65)×10－3 mm2/s.Restricteddiffusionswereobservedinthesolidpartsofmalignantovarianepithelial tumors,withmeanADCvalueof(0.98±0.28)×10－3 mm2/s.TheADCvaluesofsolidpartsweresignificantlylowerinmalignantovarian epithelialtumorsandthedifferencewasstatisticallysignificantbetweenthemalignantandbenigntumors(P＜0.05).Conclusion The signalintensityofsolidpartsonDWIissignificantlyhigherinmalignantovarianepithelialtumorsthanthatinbenignovarianepithelial tumors,buttheADCvaluesareopposite.DWIcanbeusedtodifferentiatebenignfrom malignantovarianepithelialtumors.
