DIAGNOSTIC SYSTEM FOR DETECTION OF FLUID CHANGES

摘要

A diagnostic system for monitoring changes in a medium is disclosed. The system includes a transmitter configured to generate and transmit a time-varying magnetic field into a medium responsive to a first signal. The system also includes a receiver positioned on an opposite side of the medium from the transmitter and configured to generate a second signal responsive to a received magnetic field at the receiver. The system also includes a processing unit configured to determine a phase shift between the transmitted magnetic field and the received magnetic field for a plurality of frequencies of the transmitted time-varying magnetic field.

主权项

1. A method for determining changes in a fluid in a patient's head and treating the patient, the method comprising:
transmitting a time-varying magnetic field from at least one transmitter on or near the patient's head through the fluid; receiving the magnetic field with at least one receiver on or near the patient's head; generating, with the at least one receiver, a signal responsive to the received magnetic field; determining, using a processing unit coupled with the at least one receiver, a first phase shift between the transmitted magnetic field and the received magnetic field for multiple frequencies of the transmitted time-varying magnetic field; repeating the transmitting, receiving, generating and determining steps, to determine a second phase shift; determining a change in the fluid in the patient's head over time, based on the determined first and second phase shifts; and administering a therapeutic agent to the patient, based at least in part on the determined change in the fluid in the patient's head.