11 27

Cited 0 times in

Thermodiluted relative tidal volume estimation using a thermal camera in operating room under spinal anesthesia

Authors
 JunHwan Kwon  ;  Oyun Kwon  ;  KyeongTeak Oh  ;  Jeongmin Kim  ;  Cheung Soo Shin  ;  Sun K Yoo 
Citation
 BIOMEDICAL ENGINEERING ONLINE, Vol.21(1) : 64, 2022-09 
Journal Title
BIOMEDICAL ENGINEERING ONLINE
Issue Date
2022-09
MeSH
Anesthesia, Spinal* ; Monitoring, Physiologic ; Operating Rooms ; Respiration ; Tidal Volume
Keywords
Non-contact ; Respiration ; Thermal camera ; Tidal volume
Abstract
Background: Estimating relative tidal volume is an important factor when monitoring breathing status. The relationship between temperature and respiration volume has rarely been studied. In this paper, a formula was derived for calculating thermodiluted respiration volume from temperature changes in the nasal cavity. To evaluate the proposed formula, the study compared the relative tidal volume estimated by the proposed formula with that recorded by a respiration volume monitor (Exspiron1Xi, RVM). Thermal data were obtained for 8 cases at a rate of 10 measurements per second. Simultaneous recordings by the RVM are regarded as the reference.

Results: The mean of ICC coefficient is 0.948 ± 0.030, RMSE is 0.1026 ± 0.0284, R-squared value is 0.8962 ± 0.065 and linear regression coefficient [Formula: see text] is 0.966 ± 0.104, [Formula: see text] is 0.042 ± 0.057. Bland-Altman plot showed 96.01% of samples that the difference between the measured and estimated values exists within 2 standard deviations.

Conclusions: In this paper, a model that can thermodynamically calculate the relationship between thermal energy and respiration volume is proposed. The thermodiluted model is a feasible method for estimating relative respiration tidal volumes.
Files in This Item:
T202204184.pdf Download
DOI
10.1186/s12938-022-01028-0
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Anesthesiology and Pain Medicine (마취통증의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Medical Engineering (의학공학교실) > 1. Journal Papers
Yonsei Authors
Kim, Jeongmin(김정민) ORCID logo https://orcid.org/0000-0002-0468-8012
Shin, Cheung Soo(신증수) ORCID logo https://orcid.org/0000-0001-7829-8458
Yoo, Sun Kook(유선국) ORCID logo https://orcid.org/0000-0002-6032-4686
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/191917
사서에게 알리기
  feedback

qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse

Links