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Relationship between apnoea duration and changes in physiology in preterm neonates: a systematic review and meta-analysis

Chen Y, Zandvoort CS, Baxter L, Fatunla OAT, Ketheeswaranathan V, Poorun R, Small Z, Usman F, Henry M, Berthouze L, Villarroel M, Hartley C.   +11 more
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Errors in four-electrode impedance plethysmography

Medical and Biological Engineering and Computing, 1983
The errors in electrical impedance plethysmography are not well known. In the paper errors due to inadequate instrumentation, improper electrode application, and physiological changes have been analysed. Minimum electrical requirements for a general purpose four-electrode instrument are: (a) input impedance of voltage-sensing circuit+4 kΩ; (b) output ...
J G Webster
exaly   +3 more sources

Impedance plethysmography

Equine Veterinary Journal, 1990
Summary The technique of impedance plethysmography is described and its application to observation of lung volume changes in the horse at exercise is discussed. The results from horse at rest show that there is a close relationship between rate of lung volume change (flow rate) and the associated impedance changes during both ...
D P, Attenburrow, F C, Flack, M J, Portergill   +2 more
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Development of multielectrode impedance plethysmography

Medical & Biological Engineering & Computing, 1986
The feasibility of simultaneous independent measurements of impedance variations in the right and left apex and base of the lungs using the technique of multielectrode impedance plethysmography (MIPG) was investigated. To obtain independent impedance measurements in each region, high impedance sensitivity areas must be localised by weighting the ...
N, Furuya, K, Nakayama
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Comparison of electrical field plethysmography with electrical impedance plethysmography

Annals of Biomedical Engineering, 1982
As a means for assessing cardiac function, electrical field plethysmography (EFP) has been shown to have some features quite different from electrical impedance plethysmography (EIP). Here the two techniques are compared by using the two systems simultaneously on a subject and also with independent use in different electrode configurations. The results
S K, Guha, S, Anand
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Differential impedance plethysmography for measuring thoracic impedances

Medical & Biological Engineering & Computing, 1982
A critical evaluation of the measurement of the transthoracic basic impedance Zo according to Kubicek's method revealed inhomogeneous electrical field-distributions in the region of the neck and the shoulders and in the region of the mammae in female subjects. These inhornogeneties were found to introduce uncontrollable errors, like position dependency
J H, Meijer, J P, Reulen, P L, Oe, W, Allon, L G, Thijs, H, Schneider   +5 more
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Features of Pulse Plethysmography and a Comparison with Impedance Plethysmography

Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 1992
The features of current pulse plethysmography are given. The skin capacitance and resistance are depending upon pulse duration but not the internal resistance. The internal resistance changes depend of arteries volume changes. A comparison between pulsed plethysmography and sine-wave plethysmography is discussed.
null Santic, null Saban
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