1. A physiology system, comprising: an ultrasound beamformer configured to receive signals from an ultrasound probe located proximate a region of interest and, based thereon produce ultrasound data representative of a scan plane including the region of interest; an ultrasound (U/S) processor module for generating an ultrasound image, based on the ultrasound data, representative of an anatomical structure of a portion of the region of interest contained in the scan plane; a physiology signal processor module configured to receive physiology signals from a physiology catheter located proximate the region of interest and, based thereon produce physiology data representative of physiologic activity of the portion of the region of interest contained in the scan plane; and a display processor module forming a display image combining the ultrasound image and physiology data.