用组织光学特性鉴别诊断人离体的正常膀胱和膀胱癌组织

研究正常人膀胱和膀胱癌组织在Kube lka-Munk二流模型下对476.5 nm,514.5 nm和808 nm波长的激光的光学特性的差异。采用双积分球系统和Kube lka-Munk二流模型进行测量研究。实验结果表明,正常膀胱和膀胱癌组织在Kube lka-Munk二流模型下对476.5 nm,514.5 nm和808 nm波长的每一个波长的激光的吸收、散射、总衰减、有效衰减系数都有非常显著性的差异(P<0.01)。膀胱癌组织对476.5 nm,514.5 nm和808nm波长的激光的吸收系数明显地较正常膀胱组织对相应波长的激光的吸收系数要大(P<0.01),膀胱癌组织对476.5 nm和514.5 nm波长的激光的散射系数明显地较正常膀胱组织对相应波长的激光的散射系数要小(P<0.01),而膀胱癌组织对808 nm波长的激光的散射系数明显地较正常膀胱组织对同一波长的激光的散射系数要大(P<0.01)。膀胱癌组织对476.5 nm,514.5 nm和808 nm波长的激光的总衰减系数明显地较正常膀胱组织对相应波长的激光的总衰减系数要大(P<0.01),膀胱癌组织对476.5 nm,514.5 nm和808 nm波长的激光的有效衰减系数明显地较正常膀胱组织对相应波长的激光的有效衰减系数要大(P<0.01)。提示使用双积分球系统和Kube lka-Munk二流模型来确定离体的正常膀胱组织和膀胱癌组织对476.5 nm,514.5 nm和808nm波长的激光的光学特性的差异鉴别诊断病变的膀胱组织是一个有效的方法。

Differential Diagnosis of Human Normal Bladder and Bladder Cancer Tissues by Utilizing Optical Properties of Tissues in vitro

Difference of optical properties of human normal bladder and human bladder cancer tissues at 476.5 nm,514.5 nm and 808 nm radiation respectively in Kubelka-Munk two-flux model was studied.A double-integrating-spheressystem and Kubelka-Munk two-flux model were used for the study.The results of the experiment showed that there werevery significant difference for the absorption,scattering,total attenuation,effective attenuation coefficients of human nor-mal bladder and bladder cancer tissues at the laser wavelength of476.5 nm,514.5 nm and 808 nm radiation respective-ly in Kubelka-Munk two-flux model(P<0.01).Absorption coefficients of human bladder cancer tissue at 476.5 nm,514.5 nm and 808 nm radiation individually were obviously bigger than absorption coefficients of human normal bladdertissue at the same wavelength as the wavelength of radiating human bladder cancer tissue(P<0.01).Scattering coeffi-cients of human bladder cancer tissue at476.5 nm and 514.5 nm radiation respectively were obviously smaller than scat-tering coefficients of human normal bladder tissue at the same wavelength as the wavelength of radiating human bladdercancer tissue(P<0.01),and scattering coefficient of human bladder cancer tissue at 808 nm radiation were obviouslybigger than scattering coefficient of human normal bladder tissue at the same wavelength(P<0.01).Total attenuationcoefficients of human bladder cancer tissue at 476.5 nm,514.5 nm and 808 nm radiation respectively were obviouslybigger than total attenuation coefficients of human normal bladder tissue at the same wavelength as the wavelength of radi-ating human bladder cancer tissue(P<0.01).Effective attenuation coefficients of human bladder cancer tissue at476.5 nm,514.5 nm and 808 nm radiation respectively were obviously bigger than effective attenuation coefficients ofhuman normal bladder tissue at the same wavelength as that wavelength of radiating human bladder cancer tissue(P<0.01).The results imply that it is a effective method to differential diagnosis of pathological bladder tissues by using adouble-integrating-spheres system and Kubelka-Munk two-flux model by determining difference of optical properties ofhuman normal bladder and bladder cancer tissues at476.5 nm,514.5 nm and 808 nm laser wavelengths respectively invitro.