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    • 26. 发明申请
    • INVESTIGATION OF A BODY
    • 调查身体
    • WO1994009699A1
    • 1994-05-11
    • PCT/GB1993002223
    • 1993-10-28
    • BRITISH TECHNOLOGY GROUP LIMITEDBROWN, Brian, HiltonBARBER, David, Charles
    • BRITISH TECHNOLOGY GROUP LIMITED
    • A61B05/05
    • A61B5/0536
    • A method of investigation of a body comprises applying interrogatory electrical signals at different frequencies to the body, obtaining first signals representing first electrical impedance measurements at the different frequencies, obtaining second signals representing subsequent second electrical impedance measurements at the different frequencies after a change in the internal state of the body and selectively determining characteristics of part of said body in response to the first and second signals at the different frequencies. The invention has application in electrical impedance tomography techniques where the different frequency behaviour of different parts of the body associated with temporal changes can be used to improve organ resolution and tissue differentiation.
    • 身体的调查方法包括以不同的频率向身体施加询问电信号,获得表示在不同频率下的第一电阻抗测量的第一信号,获得代表在不同频率下的不同频率的后续第二电阻抗测量的第二信号 身体的内部状态,并且响应于在不同频率的第一和第二信号选择性地确定所述身体的一部分的特性。 本发明应用于电阻抗层析成像技术,其中与时间变化相关的身体不同部位的不同频率行为可用于改善器官分辨率和组织分化。