Hypothermia effects microsensor measurement of tissue pH

pH monitoring during heart surgery requires temperature-correction of the sensor calibration constants to accurately measure tissue pH during hypothermic cardiac arrest. Polynomial regressions derived from sensor calibrations at different temperatures accurately described the relationship between pH...

Full description

Saved in:
Bibliographic Details
Published inProceedings of 16th Annual International Conference of the IEEE Engineering in Medicine and Biology Society Vol. 2; pp. 830 - 831 vol.2
Main Authors Auerbach, A.H., Soller, B.R., Peura, R.A., Stahl, R.F.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1994
Subjects
Calibration
Cardiac arrest
Heart
In vivo
Microsensors
Polynomials
Sensor phenomena and characterization
Surgery
Temperature sensors
Voltage
Online AccessGet full text

Cover

More Information
Summary:pH monitoring during heart surgery requires temperature-correction of the sensor calibration constants to accurately measure tissue pH during hypothermic cardiac arrest. Polynomial regressions derived from sensor calibrations at different temperatures accurately described the relationship between pH and voltage output of the sensor. The error without temperature-correcting the sensor was as large as 0.3 pH units during in vivo measurements.< >
ISBN:9780780320505
0780320506
DOI:10.1109/IEMBS.1994.415167