1. A system to detect an abdominal aortic aneurysm in a region of interest comprising: an ultrasound transceiver positioned to deliver ultrasound energy and receive echoes of the ultrasound energy across a plurality of scan planes; a processing device configured to signal process the received echoes and characterize detected signals across the plurality of scan plans, wherein a percentage of availability of scan planes scanned is calculated based on echos received from scan planes; a display configured to present a visual depiction of the percentage of availability of the region of interest contained in a plurality of scan planes; and a display configured to present positioning information of the ultrasound transceiver based on the visual depiction of the percentage of availability.