MCEWAN ALISTAIR LEE,HOLDER DAVID SIMON,VAN SCHAIK ANDRE,TAPSON JONATHAN CRAIG
申请号:
ZA201004425
公开号:
ZA201004425B
申请日:
2010.06.23
申请国别(地区):
ZA
年份:
2013
代理人:
摘要:
A method is provided for taking electrical impedance tomography measurements using multiple electrodes located at selected positions external to a volume of a subject body. Multiple orthogonal or near-orthogonal signals are introduced simultaneously by way of selected different electrodes and resultant predetermined responses (if any) at receiving electrodes are recorded or determined. The signals are encoded using the technique of code division multiplexing and received signals at each receiving electrode are cross-correlated with original signals to determine the contribution of each original signal to a composite received signal. The invention also relates to apparatus suitable for use in applying a method.