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The Reliability of Polyvinylidene Fluoride Sensor for Intra- and Intersession Measurements

Manjunatha, RG and Prakash, S and Rajanna, K (2019) The Reliability of Polyvinylidene Fluoride Sensor for Intra- and Intersession Measurements. In: Indian Journal of Otolaryngology and Head and Neck Surgery, 71 . pp. 1935-1939.

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Official URL: https://doi.org/10.1007/s12070-018-1349-9


A new nasal sensor has been designed using Polyvinylidene fluoride (PVDF) film using its piezoelectric property to measure nasal patency. The aim of this study is to determine the intra- and intersession reliability of the new PVDF nasal sensor measurement of unilateral and combined nasal parameters in a group of healthy subjects. Two identical nasal sensors: for right nostril (RN) and left nostril (LN) were designed using piezoelectric natured PVDF films. Twenty subjects were studied. To evaluate the repeatability, total three sets of PVDF sensor measurements were recorded, two sets were taken 5 min apart during same session without repositioning the PVDF nasal sensors and two more sets were taken during 1 h apart successively, by repositioning the PVDF nasal sensor. Intraclass correlation coefficients (ICC) of PVDF sensor measurements for intra- and intersession showed a high and greater repeatability over time for all the combined (mean) and unilateral (RN and LN) values. In both healthy and patients, ICC values for both intra- and intersession measurements were ≥ 0.80 confirming strong reliability and also almost all of the coefficients of variation for the same parameters were low (below 10%). PVDF sensor measurements showed good intra- and intersession repeatability and can be recommended for the objective monitoring of nasal patency during diagnosis and follow-up of conditions.

Item Type: Journal Article
Publication: Indian Journal of Otolaryngology and Head and Neck Surgery
Publisher: Springer
Additional Information: The copyright for this article belongs to the Authors.
Keywords: Intra- and intersession repeatability; Nasal patency; PVDF nasal sensor; Reliability
Department/Centre: Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited: 19 Oct 2022 08:22
Last Modified: 19 Oct 2022 08:22
URI: https://eprints.iisc.ac.in/id/eprint/77334

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