Abstract：Objective It is necessary to determine the electrode distance in noninvasive electrode system, so as to assess the degree of
hemorrhagic shock with noninvasive measurement of the electrical impedance spectrum of local muscle tissue. Methods According
to the thicknesses of biceps femoris of rats, three kinds of probes with both noninvasive and invasive electrode arrays were designed.
The electrode distances of noninvasive measurements were 1.83, 2.67 and 3.5 mm respectively, while the invasive measuring
electrode distances were 2.67 mm. Ten fresh pork fillets were taken as the object for measurement. The differences of measurements
were analyzed by Euclidean distance and the fitting errors were analyzed in the process of Cole-Cole curve fitting with the noninvasive
measurements. Results The measured results were closer to the invasive measurements and the corresponding Cole-
Cole curve fitting error was better when the electrode distance of noninvasive was 2.67 mm. Conclusion The measured impedance
spectrum data is close to the invasively measured data with the same electrode distance when use 1/6 of the thickness of the measured
muscle tissue as the non-invasive electrode distance.
付钦鹏，种银保，赵安，赵鹏，潘文才，马结实. 适于动物肌肉组织局部电阻抗测量的无创电极间距研究[J]. 中国医疗设备, 2017, 32(8): 38-41.
FU Qin-peng, CHONG Yin-bao, ZHAO An, ZHAO Peng, PAN Wen-cai, MA Jie-shi. Suitable Noninvasive Electrode Distance for Local Electrical Impedance
Measurement of Animal Muscle Tissue. China Medical Devices, 2017, 32(8): 38-41.
