Anomaly detection based on signal variations

Surgery – Diagnostic testing – Measuring electrical impedance or conductance of body portion

Reexamination Certificate

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Reexamination Certificate

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06993383

ABSTRACT:
A method of analyzing the type of tissue of a body portion of a subject. The method includes applying an excitation signal to the subject, sensing electrical signals from the subject responsive to the excitation signal, determining a stationary impedance map of the body portion responsive to the sensed signals, determining a change waveform of at least a part of the stationary impedance map, and providing an indication on a tissue type of at least part of the body portion, responsive to the change waveform.

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