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1、脊椎骨转移瘤的mri诊断（MRIdiagnosisofspinalmetastases）MRIdiagnosisofspinalmetastasesUpdateDate:12-07#e#[keyword]spinalcolumn;metastasistumor;MRIdiagnosisKeyword:spine;metastatictumor;MRIdiagnosisSpinemetastasespredilectionsite,earlydiagnosisandtimelytreatmentisve
2、ryimportanttoreducethepossiblecompressionofthespinalcord,cansignificantlyimprovethequalityoflifeofpatientswithMRI,becauseofitsuniqueimagingandgoodsofttissue,playsanimportantroleinthediagnosisofbonemetastasis,reviewliterature1~6.Inthispaper,24casesofspin
3、almetastaseswereanalyzed,aimedtoinvestigatetheMRIfeaturesofspinalmetastases,andmakesomereflectionsonmisdiagnosis・1materialsandmethods1.1generaldata.:therewere24casesofmetastatictumorsinthisgroup,16males,withanaverageageof57.3（39、79）yearsold,and8females,
4、withanaverageageof55.6（43〜76）years・Amongthem,22caseswereconfirmedbyclinicorpathology,including12casesoflungcancer,3casesofbreastcancer,2casesofprostatecancerand2casesofrenalcarcinoma,1casesofesophagealcancer,thyroidcancerandrectalcancer,respective!y.1.2
5、methods:HITACHI0.3TMRimaging,spinesurfacecoil,SET2WI,T1WIandGREtheT2WIT2WI:TR4000TE125F0V300FA905mmthickness1NSA4intervalfreq288phase224T1WI:TR400TE25GRE:TR700TE35F0V200FA30256*384matrixacquisition.Thisgroupofcaseswillbeevaluatedfromthefollowingaspects:
6、(1)thedistributionofbonedestruction;theformandcharacteristicsofbonedestruction;thespinalcanalinvolvementandpathologicalfracture・1ResultOfthe24caseswithbonemetastasis,21ofthemwerediagnosedcorrectly,2casesweremisdiagnosedastuberculosis,and1casesweremisdia
7、gnosedasmyeloma・Ofthe21caseswithcorrectdiagnosis,69lesionsweredetected,38thoracicvertebraewereinvolved,followedbythelumbarandcervicalvertebrae,alltheappendageswereinvolved,andthepedicleofvertebralarchwasinvaded.Amongthem,2caseswereinvadedbylaminaandspin
8、ousprocessalone・Mostirregularshapeinthedisplayofthelesions,smalllesionswereround,exceptfor1casesofprostatecancermetastasisshowedlongT1andshortT2,mostly-showedlongT1andlongT2,partofamixedsignal,generallyalsomixedlongT1andlongT2cha
