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《磁共振彌散加權(quán)成像對(duì)腦膿腫與腦腫瘤壞死的鑒別_沙琳》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫(kù)。
1、中國(guó)微生態(tài)學(xué)雜志2014年1月第26卷第1期ChineseJournalofMicroecology,Jan.2014,Vol.26No.155·臨床研究·磁共振彌散加權(quán)成像對(duì)腦膿腫與腦腫瘤壞死的鑒別沙琳,翟方兵,曹倩,邊杰大連醫(yī)科大學(xué)附屬二院放射科,遼寧大連116027摘要:目的探討磁共振彌散加權(quán)成像(DiffusionWeightedImage,DWI)技術(shù)對(duì)腦膿腫與腦腫瘤壞死的鑒別診斷價(jià)值。方法回顧性分析經(jīng)手術(shù)或臨床證實(shí)為腦腫瘤及腦膿腫,在磁共振常規(guī)圖像上表現(xiàn)有液化區(qū)的顱腦病變24例,測(cè)量液化區(qū)的表觀彌散系數(shù)(apparentdiffusioncoefficient,ADC)
2、值,并進(jìn)行統(tǒng)計(jì)學(xué)分析。結(jié)果24例患者中,膠質(zhì)瘤合并壞死10例,轉(zhuǎn)移瘤合并壞死6例,腦膿腫8例,腦膿腫膿腔在-32DWI圖像呈異常高信號(hào),平均ADC值為(0.42±0.12)×10mm/s,膠腫瘤壞死區(qū)在DWI圖像呈低信-32號(hào),平均ADC值為(2.33±0.36)×10mm/s,腦膿腫膿腔與腦腫瘤壞死的ADC值差異具有統(tǒng)計(jì)學(xué)意義(t=6.652,P<0.001)。結(jié)論腦腫瘤與腦膿腫均可出現(xiàn)液化壞死,常規(guī)MR圖像鑒別困難,磁共振DWI成像技術(shù)能夠準(zhǔn)確對(duì)腦膿腫與腦腫瘤進(jìn)行鑒別。關(guān)鍵詞:腦膿腫;腦腫瘤;彌散成像中圖分類號(hào):R739.4文獻(xiàn)標(biāo)志碼:A文章編號(hào):1005-376X(2014)
3、01-0055-03DOI編碼:10.13381/j.cnki.cjm.201401014DifferenciationofnecroticbraintumorsandbrainabscessusingDWIimagingSHALin,ZHAIFang-bing,CAOQian,BIANJieDepartmentofRadiology,theAffiliatedSecondHospitalofDalianMedicalUniversity,Dalian116027,ChinaCorrespondingauthor:SHALin,Email:drshalin@163.comAbstr
4、act:ObjectiveTodiscussthevalueofDWIindifferentiationofnecroticbraintumorsandbrainabscess.Methods24casesofbraintumorsorbrainabscessprovedbyoperationorclinicaldiagnosiswereretrospectivelyanalyzed.AlltheselesionshadliquefiedareaontheroutineMR,forwhichthevalueofADC(apparentdiffusioncoefficient)was
5、measuredandstatisticalanalysisperformed.ResultsAmongthe24casesofbraindiseases,10caseswerenecroticgliomas,6caseswerenecroticmetastatictumorand8werebrainabscess.Thesignalof-32AbscesscavitywashighonDWI,andtheaverageADCvaluewas(0.42±0.12)×10mm/s.Whilethesignal-32ofnecroticbraintumorswaslowonDWI,an
6、dtheaverageADCvaluewas(2.33±0.36)×10mm/s.ThedifferencebetweenADCvalueofcysticcompontionsofbraintumorsandbrainabscesswasstatisticallysignificant(t=6.652,P<0.001).ConclusionBothbraintumorandbrainabscessmayhaveliquefiedarea.ItisdifficulttodistinguishthemonroutineMRI,whileDWIcandistinguishthemaccu
7、rately.Keywords:Brainabscess;Braintumor;Diffusionweightedimage腦膿腫與腦膠質(zhì)瘤是兩種不同性質(zhì)的病變,但因兩者的治療方案及預(yù)后不同,準(zhǔn)確做出鑒別診斷兩者在常規(guī)MR圖像上表現(xiàn)極其相似,診斷困難。具有重要的臨床價(jià)值。DWI是一種磁共振功能成像技術(shù),通過(guò)反映組織中水分子的彌散運(yùn)動(dòng),進(jìn)而反[1]映組織局部的結(jié)構(gòu)特征。DWI用表觀擴(kuò)散系數(shù)基金項(xiàng)目:遼寧省教育廳科學(xué)研究項(xiàng)目資助(L2013341)(apparentdif