THE INVESTIGATION OF THE DEPENDENCE OF THE REGISTERED PATTERNS OF SCATTERING LIGHT ON CHANGES IN THE OPTICAL POWER OF PROBING RADIATION IN DIGITAL DIAPHANOSCOPY
The method of digital diaphanoscopy is promising for solving one of the urgent problems of modern otolaryngology, related to providing an accurate, painless, and timely diagnosis of maxillary sinus pathologies.
The comparison of the results of Monte Carlo simulation using the developed maxillary sinus model and the obtained experimental data confirmed the dependence of the recorded signal on the optical characteristics of the study area, as well as the anatomical and gender features of patients.
To adjust the parameters of the probing and measuring parts of the device, in addition to the previously developed prototype, a LED brightness controller is designed. The controller is installed between the LED control unit of the probing applicator and the probing applicator itself. The LED brightness controller allows to programmatically change the brightness of the LEDs, control the parameters of current consumption and voltage, as well as calculate the power consumption of LEDs.
Conducted experimental studies using the modernized installation allowed to identify the range of changes in the power consumption of the LEDs applicator, as well as the optical power emitted by the applicator.
To identify the values of the optical power of the probing radiation of the applicator, sufficient to obtain similar scattering patterns of light in the study of patients with different anatomical and gender features, experimental studies were conducted with the participation of healthy volunteers. In this study, the optical power of the probing radiation varied from 0 to 750 mW in increments of 50 mW. The camera exposure time did not change. The analysis of the obtained results revealed the ranges of changes in the optical power of probing radiation sufficient for visualization of the maxillary sinuses of patients with various anatomical and gender features. Thus, in healthy female volunteers, the maxillary sinuses were visualized in the range of the optical power of LEDs equal to 300-500 mW.
The work was supported by the grant of the President of the Russian Federation for state support of young Russian scientists № MK-2634.2019.8. This study was also funded by RFBR according to the research project № 20-32-90147.
Orel State University named after I.S. Turgenev
File with report