The usual way for healthcare workers to look at x-rays may soon be a thing of the past. Doctors usually have to study an image backlite on a wall viewbox... But a new process called the "Picture Achieving and Communications System, or P.A.C.S., delivers digital x-rays directly to a computer terminal and Internet, complete with audio analysis. As soon as the exam is finished, and the radiologist has dictated, the referring physician can now, on the same day, pull the exam up in his office, look at it, and hear what the radiologist said about it. That could happen within a matter of minutes.