The ACQUIRE key activates the ROI cursor (Region of Interest).
• Place the probe on the area to be scanned.
• Press ACQUIRE to display the ROI cursor and position the ROI with the trackball.
• If necessary, press the ACTION key to modify the ROI dimensions with the trackball.
• Use the controls to set the volume reconstruction modality and to adjust the image inside the ROI; these controls are available during volume acquisition.