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BMC Medical Imaging
Published in: BMC Medical Imaging 1/2014

Open Access 01-12-2014 | Research article

Intelligent neonatal monitoring based on a virtual thermal sensor

Authors: Abbas K Abbas, Steffen Leonhardt

Published in: BMC Medical Imaging | Issue 1/2014

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Abstract

Background

Temperature measurement is a vital part of daily neonatal care. Accurate measurements are important for detecting deviations from normal values for both optimal incubator and radiant warmer functioning. The purpose of monitoring the temperature is to maintain the infant in a thermoneutral environmental zone. This physiological zone is defined as the narrow range of environmental temperatures in which the infant maintains a normal body temperature without increasing his or her metabolic rate and thus oxygen consumption. Although the temperature measurement gold standard is the skin electrode, infrared thermography (IRT) should be considered as an effortless and reliable tool for measuring and mapping human skin temperature distribution and assist in assessing thermoregulatory reflexes.

Methods

Body surface temperature was recorded under several clinical conditions using an infrared thermography imaging technique. Temperature distributions were recorded as real-time video, which was analyzed to evaluate mean skin temperatures. Emissivity variations were considered for optimal neonatal IRT correction for which the compensation vector was overlaid on the tracking algorithm to improve the temperature reading. Finally, a tracking algorithm was designed for active follow-up of the defined region of interest over a neonate’s geometry.

Results

The outcomes obtained from the thermal virtual sensor demonstrate its ability to accurately track different geometric profiles and shapes over the external anatomy of a neonate. Only a small percentage of the motion detection attempts failed to fit tracking scenarios due to the lack of a properly matching matrix for the ROI profile over neonate’s body surface.

Conclusions

This paper presents the design and implementation of a virtual temperature sensing application that can assist neonatologists in interpreting a neonate’s skin temperature patterns. Regarding the surface temperature, the influence of different environmental conditions inside the incubator has been confirming.
Appendix
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Metadata
Title
Intelligent neonatal monitoring based on a virtual thermal sensor
Authors
Abbas K Abbas
Steffen Leonhardt
Publication date
01-12-2014
Publisher
BioMed Central
Published in
BMC Medical Imaging / Issue 1/2014
Electronic ISSN: 1471-2342
DOI
https://doi.org/10.1186/1471-2342-14-9

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