1. A system for generating a three-dimensional tomograph of a vessel interior or other object, the system comprising: a three-dimensional capacitance sensor device comprising a plurality of electrodes for placement around the vessel or the object, wherein the three-dimensional capacitance sensor device is adapted to provide electric field distribution and sensor sensitivity in three geometric dimensions; data acquisition electronics in communication with the three-dimensional capacitance sensor device for receiving input data from the three-dimensional capacitance sensor device; a processing system in communication with the data acquisition electronics, the processing system programmed with instructions for executing on the processing system to reconstruct a three-dimensional volume-image from the input data collected by the data acquisition electronics.