Methods and systems for determining fluid content of tissue
First Claim
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1. A diagnostic apparatus, comprising:
- one or more antennas configured to be disposed on a thorax of a body of a patient so as to direct radio frequency (RF) electromagnetic waves through a lung in the body and to output signals responsively to the RF electromagnetic waves that have passed through the lung; and
processing circuitry configured to;
process the signals to determine a path characteristic of the RF electromagnetic waves,compare the path characteristic to one or more benchmark path characteristic values corresponding to identified levels of fluid content of lungs, anddetermine fluid content of the lung based on the comparison.
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Abstract
Diagnostic apparatus includes a plurality of antennas, which are configured to be disposed at different, respective locations on a thorax of a living body so as to direct radio frequency (RF) electromagnetic waves from different, respective directions toward a heart in the body and to output RF signals responsively to the waves that are scattered from the heart. Processing circuitry is configured to process the RF signals over time so as to provide a multi-dimensional measurement of a movement of the heart.
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11 Claims
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1. A diagnostic apparatus, comprising:
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one or more antennas configured to be disposed on a thorax of a body of a patient so as to direct radio frequency (RF) electromagnetic waves through a lung in the body and to output signals responsively to the RF electromagnetic waves that have passed through the lung; and processing circuitry configured to; process the signals to determine a path characteristic of the RF electromagnetic waves, compare the path characteristic to one or more benchmark path characteristic values corresponding to identified levels of fluid content of lungs, and determine fluid content of the lung based on the comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for at least one of monitoring fluid level and diagnosis of a condition associated with fluid level, in tissue of a body, the apparatus comprising:
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one or more antennas configured for positioning on the body of a patient so as to direct radio frequency (RF) electromagnetic waves through a first tissue of the body and to output signals responsively to the RF electromagnetic waves that have passed through the first tissue; and processing circuitry configured to; process the signals at a plurality of different points over a period of time to determine a path characteristic of the RF electromagnetic waves relative to the first tissue at the different points, and determine a change in fluid content of the first tissue over the period of time based on a comparison of the determined path characteristics at the different points. - View Dependent Claims (11)
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Specification