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Development of a digital processing unit for a rhinomanometric signal

Authors: Nosova, Yana; Avrunin, Oleh; Zhemchuzhkina, Tatyana;

Development of a digital processing unit for a rhinomanometric signal

Abstract

The use of existing devices for the study of olfactory function requires a large amount of time and complex equipment, which limits their use in practical rhinology, and most importantly, ultimately, reduces to a subjective evaluation of the reaction to the supplied odorant. It should be noted that computer olfactometry is one of the most promising methods for diagnosing olfactory disorders namely respiratory genesis. When the odorivector senses normal in the subject near the threshold of sensation (when the intensity of breathing is increased), respiration is arbitrarily briefly shortened, and when the threshold of sensation sets in, the breathing cycles turn into "sniffing", which contributes to deeper air entering the olfactory area and recognizing the smell. This point in time can be characterized as the onset of the threshold of sensation of the odorivector. In this article, we propose a structural diagram of the method for determining the threshold of olfactory sensitivity. The main unit is the digital signal processing unit, in which the pneumatic power of the respiratory pattern is calculated as the product of the pressure drop and the air volume flow, and the calculation of the respiration energy is performed by integrating the cyclogram pneumatic breathing power. It is established that to establish the threshold of olfactory sensitivity it is expedient to use the developed method of automated determination of the threshold of sensation of an odorivector. The method is based on the analysis of the respiratory cycle, namely, the search for the time at which the subject briefly breathes for a short time. This threshold corresponds to the reaction of the test subject to the feed odor with a rhino- olfactometry evaluation of the human olfactory sensitivity. Improvement of the method consists in determining the threshold of olfactory sensitivity, which makes it possible, by analyzing the shape of the nasal respiratory cycle, to increase the objectivity of diagnosing abnormalities of olfactory sensitivity or respiratory and olfactory disorders. The prospect of the work consists in testing the computer system of respiratory-olfactory disorders and preliminary medical approbation.

Статья посвящена автоматизации определения порога ощущения одоривектора при риноманометрическойоценке обонятельной чувствительности. Данный порог соответствует реакции тестируемого на подаваемый запах пририно-ольфактометрической оценке обонятельной чувствительности человека. Таким образом, усовершенствован методопределения порога ольфакторной чувствительности, который отличается тем, что позволяет за счет анализа формыциклограммы носового дыхания повысить объективность диагностики нарушений обонятельной чувствительности илиреспираторно-обонятельных нарушений.

Розроблено структурну схему методу визначення порогу ольфакторної чутливості. Розроблено та реалізовано метод автоматизованого визначення порогу відчуття одорівектора. Даний поріг відповідає реакції пацієнта на поданий запах при рино-ольфактометричній оцінці нюхової чутливості людини. Таким чином, удосконалена методика визначення порогу ольфракторної чутливості, яка відрізняється тим, що дозволяє за рахунок аналізу форм циклограм носового дихання підвищувати об'єктивність діагностики порушень нюхової чутливості або респіраторно-нюхових порушень.

Keywords

olfactometry, одоривектор, одорівектор, чувствительность обонятельная, порушення дихально-нюхові, sensitivity olfactory, violations of the respiratory and olfactory, 615.47, поріг чутливості, ольфактометрія, нарушения дыхательно-обонятельные, ольфактометрия, threshold of sensitivity, odouriver, чутливість нюхова, порог чувствительности

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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