dwi对骨肉瘤诊断价值的初步分析

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1、山西医科大学硕士学位论文PreliminarystudyofthediagnosticvalueofDWIosteosarcomaAbstractObjective：Osteosarcoma(osteosarcoma)isaprimarymalignanttumorofbonetissue，Itisgeneratedbythesarcoma，osteogeniccellsandtheirdirectosteoid，newbonecomposition．Itisthemostcommonprimarymalignantbonetumors，thehighestdegreeofmalig

2、nancy，pronetotransfer．Osteosarcomaageislight，oftenoccursinchildrenandyoungpeopleof10-30yearsofage，mortality，morbidity．Treatmentofosteosarcomaincludingradiotherapy，chemotherapyandsurgicalresection．Thepast20years，withimproveddepthunderstandingoftheosteOsarcomaandchemotherapy，surgicaltechniques，to

3、makeintothesurvivalandlimbsalvagerateofpatientswithosteosarcomahasimprovedgreatly．Therefore，theearlydiagnosisofosteosarcomahasbecomethemostimportantprerequisitetoimproveaspatientswithosteosarcomasurvivalandPaullimbrate．Thediagnosisofosteosarcomarequiresthreeaspectsofthecombinationofclinicalexam

4、ination，imagingstudiesandlaboratorytests．Inourimaging，themainwaytochecktheX—ray，CT，MRI，etc．TraditionalX-rays，withaspatialresolution，canvisuallydisplaythetumorsize，location，bonedestruction,range，abletoobserveaslightperiostealreaction，andcanvisuallydisplaytheCodmantriangle，ButitsdensityiSlowresol

5、ution，tinybonedestructionandsofttissuemassinthedisplay，aswellasaviolationofthetumoronthebonemarrow，epiphyseal，softtissuemassandsurroundingstructuresinvasioncannotbeclearlydisplayed，andthereforeaffectthetumorearlydiagnosisandstaging．CTdensity，highresolution，candistinguishmultiplelevelsofthesoftt

6、issuedensity，cysticnecrosisdensity，bleedingdensity，andbonedensity．TheinvasivenessrangeobservedbonedestructionareasoftumorboneandsofttissuemasscomparedtothesatisfactionoftheX·ray，butcannotconfirmthesofttissueandbonemarrowcavitylesions．MRIisamulti—plane，multi—parameterimaging，Softtissueresolution

7、ishigh，inthedisplayofthebonemarrow，epiphyseal，jointinvolvement，softtissuemassaroundthetumorstructuralchangesisstrongerthantheX—rayandCT．MRI，highsensitivity，lowspecificity，andlikelytocausefalsepositivediagnosis．Theaboveinspectionme