Why is the doctor recommending a PET scan?
A single PET exam can provide information that once would have required many medical studies, and it can do so without the surgery that those studies might have required. PET scans are most often used to detect cancer and monitor response to treatment. PET scans are also used to evaluate heart disease, neurological conditions and other physiological problems. • What should a patient expect? Most PET scans are done as outpatient exams. Patients receive a small dose of a radioactive pharmaceutical and remain on a bed while the radiotracers are detected or “traced” by a special type of camera that works with computers to provide precise pictures of the area of body being imaged. The entire process can take as little as one hour. Because PET is noninvasive and does not involve the risks of surgery, PET scans can be performed repeatedly, if necessary, with minimal risk. The very small amount of tracer administered remains in the body for only a short period of time; there are no known long-
