Patent ID: 8057390

Claim:
A current source density mapping system comprising: a. an ultrasound transducer operable to emit an ultrasound wave traveling along an ultrasound beam directed at a mapping field in a region of living tissue and operable to provide a pulse repetition rate exceeding 10 kHz; b. an ultrasound pulser operable to deliver a transmit pulse to said ultrasound transducer; c. a timing device operable to produce controlled excitation of said transmit pulse; d. a plurality of recording electrodes operable to be positioned in contact with said living tissue and operable to detect an acoustoelectric voltage signal generated at a bioelectric current source and within a focal zone of said ultrasound beam; e. an amplifier operatively connected to said recording electrodes and operable to amplify said acoustoelectric voltage signal at a predetermined gain; and f. an analyzing component comprising a digitizer, a sampling device, a signal processor and a display unit operatively connected to said amplifier, said analyzing component operable to determine the location of said bioelectric current source relative to said mapping field by analyzing said acoustoelectric voltage signal detected by said recording electrodes in response to an interaction between said ultrasound wave and the presence of said bioelectric current source in said mapping field.