Patent Document ID: 9326699
Application ID: 13863724
Patent Flag: 1

Claim One:
1. A method for use of electrical impedance tomography, hereinafter referred to as EIT, comprising: performing an EIT procedure, including distributing a plurality of electrodes on a subject's head such that each electrode makes electrical contact with the head surface at a respective location that is spaced apart from the location associated with each other electrode, and performing an EIT current injecting step by injecting a first set of currents into the head through a first set of said electrodes, each of the currents of said first set of currents being of sufficiently small magnitude so as not to provoke a substantial brain response, either alone or in combination with other currents of said first set of currents, and, during a time when said first set of electrodes is injecting one or more of the currents of said first set of currents, utilizing a remaining second set of said electrodes to measure respective electrical potentials arising in response; performing a magnetic resonance electrical impedance tomography, hereinafter referred to as MREIT, current injecting step by injecting a second set of currents into the subject's head using the same first set of electrodes used for said EIT current injecting step; and obtaining a magnetic resonance image of said second currents, the method further comprising obtaining one or more EIT solutions to an EIT inverse problem, posed by said electrical potentials and said first set of currents, for either or both (a) static head tissue impedances, or (b) head tissues having changes in impedance, said obtaining including constraining one or more of said one or more EIT solutions by said magnetic resonance image.