期刊
PHYSIOLOGICAL MEASUREMENT
卷 26, 期 2, 页码 S111-S118出版社
IOP PUBLISHING LTD
DOI: 10.1088/0967-3334/26/2/011
关键词
electrical impedance; non-invasive detection; emboli; phantom; electrode
A phantom was constructed to simulate the electrical properties of the neck. A range of possible electrode configurations was then examined in order to improve the sensitivity of the impedance measurement method for the in vivo detection of air emboli. The neck phantom consisted of simulated skin, fat and muscle layers made of agar and a conductive rubber tube mimicking the common carotid artery. The ring-shaped electrodes with a guard electrode showed the highest sensitivity to emboli at short distances.
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