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Journal of Biomedical Optics • Open Access

Comparison of cerebral tissue oxygenation values in full term and preterm newborns by the simultaneous use of two near-infrared spectroscopy devices: an absolute and a relative trending oximeter
Author(s): Tomasz Szczapa; Łukasz Karpiński; Jerzy Moczko; Michael Weindling; Alicja Kornacka; Katarzyna Wróblewska; Aleksandra Adamczak; Aleksandra Jopek; Karolina Chojnacka; Janusz Gadzinowski

Paper Abstract

The aim of this study is to compare a two-wavelength light emitting diode–based tissue oximeter (INVOS), which is designed to show trends in tissue oxygenation, with a four-wavelength laser–based oximeter (FORE-SIGHT), designed to deliver absolute values of tissue oxygenation. Simultaneous values of cerebral tissue oxygenation (StO 2 ) are measured using both devices in 15 term and 15 preterm clinically stable newborns on the first and third day of life. Values are recorded simultaneously in two periods between which oximeter sensor positions are switched to the contralateral side. Agreement between StO 2 values before and after the change of sensor position is analyzed. We find that mean cerebral StO 2 values are similar between devices for term and preterm babies, but INVOS shows StO 2 values spread over a wider range, with wider standard deviations than shown by the FORE-SIGHT. There is relatively good agreement with a bias up to 3.5% and limits of agreement up to 11.8%. Measurements from each side of the forehead show better repeatability for the FORE-SIGHT monitor. We conclude that performance of the two devices is probably acceptable for clinical purposes. Both performed sufficiently well, but the use of FORE-SIGHT may be associated with tighter range and better repeatability of data.

Paper Details

Date Published: 23 August 2013
PDF: 7 pages
J. Biomed. Opt. 18(8) 087006 doi: 10.1117/1.JBO.18.8.087006
Published in: Journal of Biomedical Optics Volume 18, Issue 8
Show Author Affiliations
Tomasz Szczapa, Poznan Univ. of Medical Sciences (Poland)
Łukasz Karpiński, Poznan Univ. of Medical Sciences (Poland)
Jerzy Moczko, Poznan Univ. of Medical Sciences (Poland)
Michael Weindling, Univ. of Liverpool (United Kingdom)
Alicja Kornacka, Poznan Univ. of Medical Sciences (Poland)
Katarzyna Wróblewska, Poznan Univ. of Medical Sciences (Poland)
Aleksandra Adamczak, Poznan Univ. of Medical Sciences (Poland)
Aleksandra Jopek, Poznan Univ. of Medical Sciences (Poland)
Karolina Chojnacka, Poznan Univ. of Medical Sciences (Poland)
Janusz Gadzinowski, Poznan Univ. of Medical Sciences (Poland)

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