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Information × Registration Number 0223U000264, 0119U102361 , R & D reports Title Control of transformation of hemoglobin forms by external laser radiation of different spectral range popup.stage_title Head Mamilov Serhii O., Кандидат фізико-математичних наук Registration Date 05-01-2023 Organization Institute of Magnetism NAS of Ukraine and MES of Ukraine popup.description2  Techniques for measuring venous blood oxygen saturation based on continuous-wave spectrophotometry and pulse oximetry using artificial volume modulation of tissue filled with blood and extracting the respiratory rhythm from the Fourier spectrum have been developed. The developed methods do not require complex equipment for recording signals with separation in the time or frequency domain. The experiment demonstrated the possibilities and identified features of measuring venous saturation by both methods. Estimates of quantum yield of photodissociation of oxyhemoglobin and carboxyhemoglobin obtained experimentally under in vivo conditions. The yield of photodissociation of carboxyhemoglobin is 6-8 times higher than that of oxyhemoglobin. Saturation of photodissociation processes is achieved with the same photon flow of approximately photons per second. A change in the oxygen saturation of venous blood was observed only at a high level of laser-stimulated photodissociation of oxyhemoglobin in arterial blood. In our opinion, this decrease is related to compensatory mechanisms of hypoxia of peripheral tissues. Product Description popup.authors Veligosckiy Dmitro V. Mamilov Serhii O. popup.nrat_date 2023-01-05 Close