Imaging in medicine-here's looking in you, kid

Over the ages, healers have used imagery of many sorts to understand and explain illness and injury. From the deification of the beings associated with various illnesses to the advent of modern computer-aided imagery, healers have wanted to understand and see what is happening inside of their patients' bodies. I examine the imaging technologies doctors can use now, look at some advances and their applications, and touch on what we can expect the union of computers and imaging technologies to show us in the next few years. Technology such as X-rays, CT scans, PET, MRI and the Medical Imaging Toolkit are considered. Virtual reality medical systems are discussed.