| 摘要 |
<p>A method, device and system are provided for imaging an internal volume of a subject body. The method includes: providing multiple electrodes for locating at selected positions external to a volume of a subject body; applying a source current for imaging of a portion of the internal volume of the subject body through one or more first electrodes; measuring a current received at one or more second electrodes; switching a channel of each second electrode between applying the current source and measuring a voltage at the electrode in order to isolate the voltage measurement from a received current; measuring a voltage at the second electrode whilst providing a current path to a third electrode; and using the measured current and the subsequent measured voltage at each second electrode to provide an impedance for imaging the portion of the internal volume. The method may include simultaneously or sequentially applying a source current for stimulating the portion of the internal volume of the subject body through the one or more first electrodes.</p> |
