A system for applying focused ultrasound energy to a nerve surrounding an artery of a patient includes a piezoelectric array comprising a plurality of piezoelectric elements, a controller configured to control at least a subset of the piezoelectric elements so that at least one of the piezoelectric elements in the subset is in a signal transmitting mode, in a signal sensing mode, or both, a first platform on which the piezoelectric elements are coupled and a second platform, wherein the second platform is configured to support at least a part of the patient, a programmable generator configured to generate output power for one or more of the piezoelectric elements, and a programmable processor configured to process a signal sensed by at least one of the piezoelectric elements.