METHOD AND APPARATUS FOR USE IN IMAGING A BODY
专利汇可以提供METHOD AND APPARATUS FOR USE IN IMAGING A BODY专利检索，专利查询，专利分析的服务。并且The present invention relates to imaging, and more particularly to a method and apparatus for use in imaging a body by means of the technique of electrical impedance tomography (EIT). A plurality of electrodes (E, to E16) are provided in electrical contact with the body (10) around the periphery of the body. A first electrical input signal is applied to at least one of the electrodes over a first time period (T1), and a second electrical input signal, which is preferably in inverted form of the first, is then applied to the at least one of the electrodes over a subsequent, second time period (T2). The resulting electrical output signal is measured at one or more of the remaining electrodes over the first and second time periods and the difference between the measured signal obtained during the first time period and that obtained during the second time period is calculated to provide a difference signal. The difference signal can be stored and used for image reconstruction. The invention has particular application in imaging neurological function within the body, where the impedance changes associated with neuronal depolarisations are very small and the resulting electrical signals measured at the body periphery are even smaller. By use of this technique electrical signals corresponding to the dynamic components of impedance change can be reinforced whilst those corresponding to other unwanted components can be cancelled.，下面是METHOD AND APPARATUS FOR USE IN IMAGING A BODY专利的具体信息内容。
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