Body plethysmography (i): Standardisation and quality criteria

“…Body PPG allows the measurement of volumes, capacities, and resistances of different body organs, including the lungs and the vascular system (Inés de Mir Messa et al, 2015). Photoplethysmography uses the absorption or reflection of a specific wavelength produced by the other functional groups found in the tissues, commonly used to know the heart rate, oxygen saturation, and oxygenation index in the tissues (Chincoya et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Experimental blood glucose estimation from photoplethysmography recordings on distal finger phalange

Campos

Sotelo-Orozco

Gamboa

et al. 2022

ICBI

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Blood glucose concentration shows the quality and health of an individual. High glucose levels in the blood flow indicate atypical behavior of the human system. Currently, there is an acceptable test method to estimate glucose level; it consists in taking out a blood sample by the finger with a pin prick. However, the blood sample test has some disadvantages because it can produce some non-desired issues, such as infections, especially a typical case in people living with diabetes. Therefore, this work is motivated by applying reflective Photoplethysmography (PPG), a non-invasive technique based on a light source and a photodetector near the human body's skin. In this case, we propose two different blood glucose sensors using the infrared diodes LTE-302 and COM-09349 with a photodetector FDS-100. It is worth noting that both designs have multiple development stages, and all of them are self-designed and validated through various test samples with three healthy volunteers, one woman and two men. The results present an error of about 14 % for the first sensor, while for the second sensor is about 7.9 %. Moreover, the sensor measurements are compared against a commercial glucometer, the One Touch Select Plus Flex, and the specifications of the NORM ISO 15197:2013 standard. Finally, the reflective PPG technique could be applied as a non-invasive method to estimate the blood glucose level in the human body.

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“…It also makes it possible to determine the Residual Volume (RV). The volume of the air in the patient’s lungs is calculated on the basis of pressure changes in the cabin and its known volume, based on Poisson’s and Boyle-Mariott’s laws [ 5 , 6 , 7 ]. The other way to calculate the RV is by using the gas dilution technique.…”

Section: Introductionmentioning

confidence: 99%

Requirements for Supporting Diagnostic Equipment of Respiration Process in Humans

Nitkiewicz

Barański

Galewski

et al. 2021

Sensors

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There is abundant worldwide research conducted on the subject of the methods of human respiration process examination. However, many of these studies describe methods and present the results while often lacking insight into the hardware and software aspects of the devices used during the research. This paper’s goal is to present new equipment for assessing the parameters of human respiration, which can be easily adopted for daily diagnosis. This work deals with the issue of developing the correct method of obtaining measurement data. The requirements of the acquisition parameters are clearly pointed out and examples of the medical applications of the described device are shown. Statistical analysis of acquired signals proving its usability is also presented. In the examples of selected diseases of the Upper Respiratory Tract (URT), the advantages of the developed apparatus for supporting the diagnosis of URT patency have been proven.

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Body plethysmography (i): Standardisation and quality criteria

Cited by 4 publications

References 26 publications

Body plethysmography in chronic obstructive pulmonary disease patients: A cross-sectional study

Body plethysmography in chronic obstructive pulmonary disease patients: A cross-sectional study

Experimental blood glucose estimation from photoplethysmography recordings on distal finger phalange

Requirements for Supporting Diagnostic Equipment of Respiration Process in Humans

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