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Proceedings Paper

Development of a baby friendly non-contact method for measuring vital signs: First results of clinical measurements in an open incubator at a neonatal intensive care unit
Author(s): John H.G.M. Klaessens; Marlies van den Born; Albert van der Veen; Janine Sikkens-van de Kraats; Frank A.M. van den Dungen; Rudolf M. Verdaasdonk
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Paper Abstract

For infants and neonates in an incubator vital signs, such as heart rate, breathing, skin temperature and blood oxygen saturation are measured by sensors and electrodes sticking to the skin. This can damage the vulnerable skin of neonates and cause infections. In addition, the wires interfere with the care and hinder the parents in holding and touching the baby. These problems initiated the search for baby friendly 'non-contact' measurement of vital signs. Using a sensitive color video camera and specially developed software, the heart rate was derived from subtle repetitive color changes. Potentially also respiration and oxygen saturation could be obtained. A thermal camera was used to monitor the temperature distribution of the whole body and detect small temperature variations around the nose revealing the respiration rate. After testing in the laboratory, seven babies were monitored (with parental consent) in the neonatal intensive care unit (NICU) simultaneously with the regular monitoring equipment. From the color video recordings accurate heart rates could be derived and the thermal images provided accurate respiration rates. To correct for the movements of the baby, tracking software could be applied. At present, the image processing was performed off-line. Using narrow band light sources also non-contact blood oxygen saturation could be measured. Non-contact monitoring of vital signs has proven to be feasible and can be developed into a real time system. Besides the application on the NICU non-contact vital function monitoring has large potential for other patient groups.

Paper Details

Date Published: 27 February 2014
PDF: 7 pages
Proc. SPIE 8935, Advanced Biomedical and Clinical Diagnostic Systems XII, 89351P (27 February 2014); doi: 10.1117/12.2038353
Show Author Affiliations
John H.G.M. Klaessens, VU Univ. Medical Ctr. (Netherlands)
Marlies van den Born, VU Univ. Medical Ctr. (Netherlands)
Albert van der Veen, VU Univ. Medical Ctr. (Netherlands)
Janine Sikkens-van de Kraats, VU Univ. Medical Ctr. (Netherlands)
Frank A.M. van den Dungen, VU Univ. Medical Ctr. (Netherlands)
Rudolf M. Verdaasdonk, VU Univ. Medical Ctr. (Netherlands)

Published in SPIE Proceedings Vol. 8935:
Advanced Biomedical and Clinical Diagnostic Systems XII
Tuan Vo-Dinh; Anita Mahadevan-Jansen; Warren S. Grundfest M.D., Editor(s)

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