Sonographers are meical professionals who operate ultrasonic imaging devices to produce diagnostic images and scans, videos, or 3D volumes of anatomy and diagnostic data. Sonography requires specialized education and skills to view, analyze and modify the scan to optimize the information in the image. Because of the high levels of decisional latitude and diagnostic responsibility sonographers have a high level of responsibility in the diagnostic process, certification in sonography is generally required. Sonographers require a high level of understanding in ultrasound physics, cross sectional anatomy, physiology, pathology and communication skills; as well as highly developed psycho-motor skills that are specific to the profession.