Methods and systems for determining fluid content of tissue

摘要

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.

主权项

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.