Use of electromagnetic field for tomographic imaging of head

An electromagnetic tomographic system for imaging a human head, comprising:

• a base;
• an imaging chamber, supported on the base, that defines an imaging domain in which a human head is received;
• at least one ring of antennas, supported by the imaging chamber and encircling the imaging domain;
• a plurality of antenna controllers, wherein each of the plurality of antenna controllers comprises circuitry and is dedicated to a respective antenna in the ring of antennas, and wherein the circuitry of each respective antenna controller controls operation of the corresponding antenna and also provides, as output, data representative of measured electromagnetic field signals received by such antenna;
• and
• an image processing computer system that receives, from the plurality of antenna controllers, the output data representative of the measured electromagnetic field signals received by the respective antennas and derives image data therefrom.