caa a22 4500 475748824 CHVBK 20180406123521.0 cr unu---uuuuu 170329e20000801xx s 000 0 eng 10.1023/A:1005506015634 doi (NATIONALLICENCE)springer-10.1023/A:1005506015634 Hálek Jan From the Department of Medical Biophysics, Biometrics and Informatics, Faculty of Medicine, Palacky University, Hnevotinska 3, 775 15, Olomouc, Czech Republic aut A Method of Local Skin Perfusion Detection [Elektronische Daten] [Jan Hálek] On the epidermal surface there are inhomogeneities which manifest as, among other things, lower local impedance. These regions include Head's zones, sweat glands, and also the so-called acupuncture points. The aim of this paper is to examine the effect of skin perfusion on epidermal impedance at the acupuncture points. When measuring epidermis impedance in the local (acupuncture) points the method of impedance plethysmography was applied. Both the method of four electrode measurement at the constant current and the method of two electrode measurement by means of the different and indifferent electrode as well were engaged. First, we had to uncover the size of the action skin points which was made by means of a different micro-electrode developed by us. The effect of some factors on the reproducibility and comparability of the values measured was evaluated. The attention was focused mainly on the questions of the pressure of the different electrode on the skin surface, magnitude and waveform of the excitating current, and so on. The authors demonstrate the impossibility to measure changes in skin impedance in the acupuncture points, in dependence on the blood perfusion—which was due to the high serial resistance between the point measured in the acupuncture place when the four-electrode measurement was applied, on the other side. Plenum Publishing Corporation, 2000 skin perfusion nationallicence inhomogeneities nationallicence epidermal impedance nationallicence Journal of Medical Systems Kluwer Academic Publishers-Plenum Publishers 24/4(2000-08-01), 257-264 0148-5598 24:4<257 2000 24 10916 https://doi.org/10.1023/A:1005506015634 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1005506015634 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Hálek Jan From the Department of Medical Biophysics, Biometrics and Informatics, Faculty of Medicine, Palacky University, Hnevotinska 3, 775 15, Olomouc, Czech Republic aut NATIONALLICENCE 773 0- Journal of Medical Systems Kluwer Academic Publishers-Plenum Publishers 24/4(2000-08-01), 257-264 0148-5598 24:4<257 2000 24 10916 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer