Early Detection of Inflammation Foci in the Soft Tissues of the Periodontium Using Infrared Diaphanoscopy

Metrological Assurance of Infrared Transillumination of Biological Tissues

“…The reason for the formation of such areas can be inflammatory and pathological processes, functional changes in tissues, leading to a local change in blood circulation [3,4]. Local changes in the values of the absorption and scattering coefficient lead to the appearance of a contrast of inflammation, pathology or altered blood supply areas relative to the surrounding tissues in the images of the visible and near infrared range [1,2]. To ensure the maximum probability of detecting pathological areas, it is necessary to provide the maximum contrast of pathological areas on the IRT images [1,2].…”

“…Local changes in the values of the absorption and scattering coefficient lead to the appearance of a contrast of inflammation, pathology or altered blood supply areas relative to the surrounding tissues in the images of the visible and near infrared range [1,2]. To ensure the maximum probability of detecting pathological areas, it is necessary to provide the maximum contrast of pathological areas on the IRT images [1,2]. Thus, the design of the measures should provide the possibility of experimental study of the optical inhomogeneities contrast dependence on the registration parameters: wavelength, degree of monochromaticity, polarization, spatial configuration and other parameters of the probe radiation, as well as the parameters of the registration unit.…”

“…As a result of research carried out at the Department of Biomedical Technical Systems of the BMSTU, it was theoretically established and experimentally confirmed the possibility of detecting at an early stage of inflammation of the periodontal by the method of infrared (hereinafter referred to as IR) transillumination (hereinafter referred to as IRT) in the passing non-ionizing laser radiation of the near IR range [1,2].…”