Anomaly detection based on signal variations
First Claim
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1. A method of analyzing the type of tissue of a body portion of a subject, comprising:
- 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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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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Citations
20 Claims
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1. A method of analyzing the type of tissue of a body portion of a subject, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of analyzing the type of tissue of a body portion of a subject, comprising:
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applying an excitation signal to the subject;
sensing signals from the subject responsive to the excitation signal;
extracting from the sensed signals a time dependent change waveform;
filtering the change waveform so at to remove at least one frequency from the change waveform; and
providing an indication on a tissue type of at least part of the body portion, responsive to the filtered change waveform.
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20. A method of analyzing the type of tissue of a body portion of a subject, comprising:
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applying an excitation signal to the subject;
sensing signals from the subject responsive to the excitation signal;
determining at least one parameter of an internal event in the subject;
extracting from the sensed signals a time dependent change waveform responsive to the at least one parameter of the internal event; 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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Specification