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Malignant, fibroadenoma, normal and adipose breast tissues were studied using diffuse reflectance spectroscopy. The absorption spectra of the breast tissues were extracted from the diffuse reflectance spectra using the Kubelka-Munk function (K-M function). The spectral features of the K-M function were identified and compared with those of the absorption spectra. The spectral features of the K-M function were assigned to DNA, protein, beta-carotene and hemoglobin (oxygenated and deoxygenated) molecules in the breast tissue. The amplitudes of the K-M function averaged from 275 to 285 nm and from 255 to 265 nm and were found to be different for malignant, fibroadenoma and normal tissues. These differences were attributed to changes in proteins and DNA. A set of critical parameters was determined for separating malignant tissues from fibroadenoma and normal tissues. This approach should hold for other tissue types such as cervix, uterus and colon. 相似文献
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Stereochemical problems in macrolide antibiotics 总被引:1,自引:0,他引:1
W D Celmer 《Pure and applied chemistry. Chimie pure et appliquee》1971,28(4):413-453
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Fundamental Differences of Excitation Spectrum between Malignant and Benign Breast Tissues 总被引:1,自引:0,他引:1
Yuanlong Yang A. Katz Edward J. Celmer Margaret Zurawska-Szczepaniak R. R. Alfano 《Photochemistry and photobiology》1997,66(4):518-522
Abstract— Differences observed in the UV excitation spectrum of malignant and benign breast tissues are used to distinguish between malignant and benign breast tissues. These changes are attributed to changes with specialized proteins. 相似文献
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BłAŻEJ JAN WRÓBEL 《Proceedings Mathematical Sciences》2011,121(1):45-75
We examine weighted L
p
boundedness of g-functions based on semigroups related to multi-dimensional Laguerre function expansions of Hermite type. A technique of vector-valued
Calderón–Zygmund operators is used. 相似文献
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