Electical properties tomography mapping of conductivity changes

A method of operating a medical imaging system, wherein the method comprises:

• receiving a resting group of B1 phase maps of a region of interest of a subject;
• receiving an active group of B1 phase maps of the region of interest of the subject;
• calculating a resting group of conductivity maps for the region of interest using the resting group of B1 phase maps according to an electrical properties tomography algorithm;
• calculating an active group of conductivity maps for the region of interest using the active group of B1 phase maps according to the electrical properties tomography algorithm;
• and
• calculating a conductivity change mapping for the region of interest using the resting group of conductivity maps and the active group of conductivity maps.

A computer program product comprising machine executable instructions stored on a non-transitory computer readable medium for execution by a processor to control a medical imaging system, wherein execution of the machine executable instructions causes the processor to:

• receive a resting group of B1 phase maps of a region of interest of a subject;
• receive an active group of B1 phase maps of the region of interest of the subject;
• calculate a resting group of conductivity maps for the region of interest using the resting group of B1 phase maps according to an electrical properties tomography algorithm;
• calculate an active group of conductivity maps for the region of interest using the active group of B1 phase maps according to the electrical properties tomography algorithm;
• and
• calculate a conductivity change mapping for the region of interest using the resting group of conductivity maps and the active group of conductivity maps.