THE THEORETICAL BASIS FOR THE DETERMINATION OF OPTICAL PATHLENGTHS IN TISSUE - TEMPORAL AND FREQUENCY-ANALYSIS
THE THEORETICAL BASIS FOR THE DETERMINATION OF OPTICAL PATHLENGTHS IN TISSUE - TEMPORAL AND FREQUENCY-ANALYSIS
复制标题
DOI：
10.1088/0031-9155/37/7/005
复制
发表时间：
1992-07-01
影响因子：
3.5
通讯作者：
DELPY, DT
中科院分区：
文献类型：
--
作者：
ARRIDGE, SR;COPE, M;DELPY, DT
一个简洁的理论处理是开发的计算平均时间，差分光程，相移，调制深度和积分强度的测量的光强度作为时间的函数在组织的表面上，从皮秒光脉冲的输入，或射频调制光。治疗使用的绿色的功能的扩散近似的辐射传输方程，并开发这和它的傅立叶变换在各种几何形状。详细比较了几种几何形状的这些参数，以及它们与实验测量的临床数据的关系。相位测量的使用的局限性进行了讨论。
A concise theoretical treatment is developed for the calculation of mean time, differential pathlength, phase shift, modulation depth and integrated intensity of measurements of light intensity as a function of time on the surface of tissue, resulting from either the input of picosecond light pulses, or radio frequency-modulated light. The treatment uses the Green's function of the diffusion approximation to the radiative transfer equation, and develops this and its Fourier transform in a variety of geometries. Detailed comparisons are made of several of these parameters in several geometries, and their relation to experimentally measured clinical data. The limitations of the use of phase measurements is discussed.