肿瘤影像学概论2005年8月张晓鹏.ppt

肿瘤影像学概瘤影像学概论2005年年8月月张晓鹏Peking University School Of OncologyHistory1901年诺贝尔物理学奖年诺贝尔物理学奖Rontgen,W.K.,(18451923）Peking University School Of OncologyMethodX-ray 透视透视 平片平片 断层断层 造影造影 CR DRPeking University School Of OncologyDigital ImagePeking University School Of OncologyHistory1978年诺贝尔生理学或医学奖年诺贝尔生理学或医学奖Godfrey N.Hounsfield（1912 ）Allan M.Cormack（1924-1998）Peking University School Of OncologyCT(Computed Tomography)Conventional CT Helical CTMulti-slice CTPeking University School Of OncologyPeking University School Of OncologyCTPeking University School Of OncologyPeking University School Of OncologyCT NumberThe CT number is a measure of the total absorption coefficient of a tissue element,positive for value higher than water and negative for values less than w a t e r(w a t e r=z e r o).CT number is the Hounsfield unitHU.Peking University School Of OncologyPeking University School Of OncologyCT Numbers(HU)水：水：010 空气：空气：+400Peking University School Of OncologyPeking University School Of OncologyCT Window Wide and LeverPeking University School Of OncologyPeking University School Of OncologyPaul C.LauterburPeter Mansfield2003年诺贝尔生理学或医学奖年诺贝尔生理学或医学奖Peking University School Of OncologyPeking University School Of OncologyMRI Magnetic Resonance ImagingPeking University School Of OncologyMRIPeking University School Of OncologyMRIPeking University School Of OncologyMRIPeking University School Of OncologyPeking University School Of OncologyBasic Knowledge自然对比人工对比密度信号 强化 Peking University School Of OncologyContrast agentAirBariumIonic iodinated agentNonionic iodinated agentGadoliniumPeking University School Of OncologyIodinated agentPeking University School Of OncologyGadoliniumGd-DTPAPeking University School Of Oncology正常人体组织的信号特征正常人体组织的信号特征组织名称T T1 1WIWIT T2 2WIWI脂肪、骨髓脂肪、骨髓白白灰白灰白肌肉肌肉黑灰黑灰灰灰肌腱、韧带肌腱、韧带黑黑黑灰黑灰骨骼、钙化骨骼、钙化黑黑黑黑纤维软骨纤维软骨黑黑黑灰黑灰透明软骨透明软骨黑灰黑灰灰灰气体气体黑黑黑黑水分水分黑黑白白血流血流黑黑黑黑Peking University School Of OncologyEnhancement正常解剖正常解剖病灶定位病灶定位病灶定性病灶定性肿瘤血供肿瘤血供生长方式生长方式生理屏障生理屏障Peking University School Of Oncology常见肿瘤影像诊断概况常见肿瘤影像诊断概况Peking University School Of OncologyCHESTLocationClassificationPercutaneous BiopsyTumor Staging Specific Lung TumorLung MetastasisPeking University School Of OncologyLymph Nodes ImagingPeking University School Of OncologyGastrointestinal TractDouble Contrast Examination Computed TomographyTumor StagingPeking University School Of OncologyBreastMammographyPeking University School Of OncologyMammographyPeking University School Of OncologyEvaluation of the MammographyPeking University School Of Oncology思考题思考题影像学在肿瘤诊断治疗中的作用影像学在肿瘤诊断治疗中的作用常用肿瘤影像学检查方法及其应用价值常用肿瘤影像学检查方法及其应用价值