1. A method of capturing an image using an ultrasound system, comprising: directing ultrasound waves from the ultrasound system to a body; surveying the image to collect motion data; analyzing the motion data to identify a flow in the image, the analyzing comprising segmenting the image into a flow region and a non-flow region; scanning a limited region of the image containing the flow with a flow imaging technique; distinguishing plaque from clutter when low-level echoes are present; and adjusting a gain of an image acquisition system based on whether plaque is present or clutter is present in the image.