Title :
The use of a non-contact Fourier interferometric, hyperspectral imaging system to quantify the absorption and reduced scattering coefficients of tissue-like turbid media over a broad spectral range
Author :
Pham, Thinh H. ; Bevilacqua, Frederic ; Spott, T. ; Dam, Jeppe Seidelin ; Tromberg, B.J. ; Andersson-Engels, Stefan
Author_Institution :
Dept. of Phys., Lund Inst. of Technol., Sweden
Abstract :
Summary form only given. The absorption and reduced scattering parameters /spl mu//sub a/ and /spl mu//sub s/´ respectively of a turbid medium, such as tissue, can be used to characterize its composition and structure. For instance, /spl mu//sub a/ and /spl mu//sub s/´ of tissue can provide information on a variety of physiological processes. Absorption spectrum is used to quantify the concentration of biologically important chromophores, such as hemoglobin, myoglobin, water, fat, and near-infrared absorbing drugs. Scattering properties offer insight into the composition, density, and organization of tissue structures, such as cells, sub-cellular organelles, and connective tissue/extracellular matrix. Since changes in these components generally accompany pathologic transformations and physiological processes, techniques for non-invasively quantifying /spl mu//sub a/ and /spl mu//sub s/´ in vivo have generated intense interest. One approach for characterizing /spl mu//sub a/ and /spl mu//sub s/´ of turbid media is to use the spatially-resolved steady-state diffuse reflectance. In this study, we investigate the feasibility of using hyperspectral images of the diffuse reflectance to quantify /spl mu//sub a/ and /spl mu//sub s/´ over a continuous and broad spectral range.
Keywords :
absorption coefficients; biological tissues; biomedical imaging; light interferometry; light scattering; reflectivity; turbidity; absorption coefficients; biologically important chromophores; broad spectral range; cells; connective tissue; diffuse reflectance; extracellular matrix; fat; hemoglobin; hyperspectral images; in vivo; myoglobin; near-infrared absorbing drugs; non-contact Fourier interferometric hyperspectral imaging system; pathologic transformations; physiological processes; reduced scattering coefficients; scattering properties; spatially-resolved steady-state diffuse reflectance; sub-cellular organelles; tissue; tissue structures; tissue-like turbid media; turbid medium; water; Absorption; Cells (biology); Connective tissue; Drugs; Extracellular; Hyperspectral imaging; In vivo; Reflectivity; Scattering parameters; Steady-state;
Conference_Titel :
Lasers and Electro-Optics Europe, 2000. Conference Digest. 2000 Conference on
Conference_Location :
Nice
Print_ISBN :
0-7803-6319-1
DOI :
10.1109/CLEOE.2000.910343