1、中國(guó)協(xié)和醫(yī)科大學(xué)（北京協(xié)和醫(yī)學(xué)院）博士學(xué)位論文鼻腔NKT細(xì)胞淋巴瘤不同放療計(jì)劃的比較姓名：顧建明申請(qǐng)學(xué)位級(jí)別：博士專(zhuān)業(yè)：臨床醫(yī)學(xué)指導(dǎo)教師：李曄雄20070101AbstractComparisonofDifferentRadiotherapyPlansforNasalNK／TCellLymphomaObjective：Inordertoprovideevidenceforoptimalradiotherapy(RT)planselect

2、ioninthetreatmentofnasalnaturalkiller／Tcelllymphoma(Nl憾，n)，acomparisonofdosedistributionsinvariousradiotherapyplanswasperformedMaterialsandmethods：Thecompletethreedimensionaldatasetsof13patientswithNNKTLatstageIEwereobta

3、inedRetrospectively6plans，consistedofaconventionallfieldradiotherapyplan(IFCon)，a3fieldconformalradiotherapyplan(3F—CRT)，asimplifiedintensitymodulatedradiotherapyplan(5F—sIMRT)，a5fieldIMRTplan，a7fieldIMRTplananda9fieldIM

4、RTplan，weregeneratedforeverycaseAuniformtargetdoseof50Gywasprescribedfollowedbyadetailedanalysisondosevolumehistograms(DVH)andisodosedistributionlinesResults：Theaverageirradiationdosesdeliveredto95％planningtreatmentvolum

5、e(PTV)inIF—Conplanand3FCRTplanwere3648cGyand4654cGyrespectivelyWithregardstoPTVconformityandhomogeneity9F—IMRT7F—IMRTweresuperiorthan5F—IMRT5FslMRTand3F—CRTwhileIF—ConwasthewontConclusions：IF—Conplanscouldnotsatisfythera