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Fluorescence and Near-Infrared Light Transillumination.
Dent Clin North Am
July 2018
Division of Biomaterials and Bioengineering, Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, 707 Parnassus Avenue, San Francisco, CA 94143-0758, USA.
This article describes the current applications of various technologies based on either autofluorescence or near-infrared light illumination, tailored to aid practitioners in detecting and quantitatively monitoring oral diseases such as dental caries and oral cancer at the earliest stage of their formation, or in the conservative surgical excision of necrotic bones in diseases such as chronic osteomyelitis, osteoradionecrosis, and medication-related osteonecrosis of the jaw. The data discussed are primarily based on published scientific studies and reviews from case reports, clinical trials, and in vitro and in vivo studies. References have been traced manually, by MEDLINE, or through manufacturer's websites.
View Article and Find Full Text PDFSimulation of time-resolved breast transillumination.
Med Biol Eng Comput
March 1993
Laboratoire de Génie Médical, Ecole Polytechnique, Fédérale de Lausanne, Switzerland.
A Monte Carlo simulation has been developed to predict the quality of time-resolved images of the breast by transillumination. The smallest diameter of a detectable carcinoma located in the breast has been computed. The simulation suggests that time-resolved imaging of the breast is possible and invaluable in the near infra-red (NIR) by transillumination.
View Article and Find Full Text PDFLaser tomography of heterogeneous scattering media using spatial and temporal resolution.
Med Biol Eng Comput
March 1993
INSERM Unité 2, Département de Physiologie, Faculté de Médecine, Créteil, France.
Time-resolved tomography is performed in transillumination by using 527 nm picosecond pulses from a passively mode-locked doubled Nd/glass laser and a streak camera to select photons according to their flight time. This work reports on the increase in contrast of a time-resolved profile of a 2 mm radius opaque object embedded in a scattering medium, constituted of diluted milk in a 30 mm thick cell. For spatial analysis, the emerging photons are detected through a 6 mm slit at the outlet face of the cell.
View Article and Find Full Text PDFTransillumination is a recently revived technique, now available, for examination of the breast. It may be used as a supplement or possible alternative to mammography. Fifty-four women were examined with a diaphanograph machine made by Sinus Medical Equipment of Sweden.
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