A noninvasive optical diagnostic system for detection of cancerous and precancerous lesions of the cervix was evaluated in vivo. The optical system included a fiber-optic probe designed to measure polarized and unpolarized light transport properties of a small volume of tissue. An algorithm for diagnosing tissue based on the optical measurements was developed that used four optical properties, three of which were related to light scattering properties and the fourth of which was related to hemoglobin concentration.
View Article and Find Full Text PDFWomen look to their internists and other primary care physicians to provide preventive health care. Periodic Pap tests are as much a part of a woman's ongoing health care as periodic lipid assessments, mammograms, screening for colon cancer, or any of the other recommended screening assessments. This article provides primary care physicians with the information needed to perform Pap tests at the appropriate intervals, or if not set up to do Pap tests themselves, to make the appropriate referrals.
View Article and Find Full Text PDFObjective: To examine the utility of in vivo elastic light scattering measurements to diagnose high grade squamous interepithelial lesions (HSIL) of the cervix.
Methods: A newly developed fiber optic probe was used to measure light transport in the cervical epithelium of 36 patients undergoing standard colposcopy. Both unpolarized and polarized light transport were measured in the visible and near-infrared.