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《RTOG-放療中胸部危及器官勾畫(huà)-Organsat Risk OARs in Thoracic.ppt》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在應(yīng)用文檔-天天文庫(kù)。
1、AtlasesforOrgansatRisk(OARs)inThoracicRadiationTherapy放療中胸部危機(jī)器官勾畫(huà)Feng-Ming(Spring)KongMDPhDLeslieQuintMDMitchellMachtayMDJeffreyBradleyMDOutlineofContentAtlasforlung,esophagus,andspinalcord肺、食管、脊髓的勾畫(huà)Atlasforbrachialplexus臂叢神經(jīng)的勾畫(huà)Atlasforproximalbronchialtree近端支氣管樹(shù)的勾畫(huà)Atlasf
2、orchestwall胸壁的勾畫(huà)Atlasforpericardium,heartandgreatvessels(includingnormalpericardialrecesses)心包、心臟、大血管（包括正常心包凹陷）的勾畫(huà)RTOG1106RequiredOARsStructureDescriptionStructuredefinitionandcontouringinstructionsLungLungs–PreGTV(compositeofCT1GTVandPETMTV)Bothlungsshouldbecontouredusin
3、gpulmonarywindows.Therightandleftlungscanbecontouredseparately,buttheyshouldbeconsideredasonestructureforlungdosimetry.Allinflatedandcollapsed,fibroticandemphysematiclungsshouldbecontoured,smallvesselsextendingbeyondthehilarregionsshouldbeincluded;however,preGTV,hilarsand
4、trachea/mainbronchusshouldnotbeincludedinthisstructure.HeartHeart&PericardiumTheheartwillbecontouredalongwiththepericardialsac.Thesuperioraspect(orbase)willbeginattheleveloftheinferioraspectofthepulmonaryarterypassingthemidlineandextendinferiorlytotheapexoftheheart.Esopha
5、gusEsophagusTheesophagusshouldbecontouredfromthebeginningattheleveljustbelowthecricoidtoitsentrancetothestomachatGEjunction.Theesophaguswillbecontouredusingmediastinalwindow/levelonCTtocorrespondtothemucosal,submucosa,andallmuscularlayersouttothefattyadventitia.Spinalcord
6、SpinalCanalThespinalcordwillbecontouredbasedonthebonylimitsofthespinalcanal.Thespinalcordshouldbecontouredstartingattheleveljustbelowcricoid(baseofskullforapextumors)andcontinuingoneveryCTslicetothebottomofL2.Neuroformaninesshouldnotbeincluded.BrachialplexBrachialPlexusTh
7、isisonlyrequiredforpatientswithtumorsofupperlobes.Onlytheipsilateralbrachialplexisrequired.ThiswillincludethespinalnervesexitingtheneuroforaminefromtopofC5totopofT2.IncontrasttopriorRTOGlungstudiesofcontouringthemajortrunksofthebrachialplexuswithinclusionofsubclavianandax
8、illaryvessels,thistrialrequestscontouringthenervesaccordingtotheCTanatomyoneveryotherCTslice.The
