CT Scan
Senior Airman David Pegg, 56th Medical Support Squadron lead cat scan technician, watches as Tech Sgt. Erik Walker, 56th Medical Support Squadron assistance NCOIC of ultrasound, goes into the scanner during a training session at Luke Air Force Base, Arizona, March 3, 2015. CT scans are used to locate abnormalities in the head, chest and abdomen. (U.S. Air Force photo by Senior Airman Devante Williams)