Positron Emission Tomography (PET) is an imaging technique that assists in the diagnosis and management of many diseases. PET allows the physicians to examine the whole patient at once, by producing pictures of the functions of the human body unobtainable by other imaging techniques.

PET can detect tumors unseen by other imaging techniques, or detect Alzheimer's disease one to two years before the diagnosis would be made. The diseases most commonly diagnosed with PET imaging include: cancer, coronary artery disease, Parkinson's Disease, Epilepsy and Alzheimer's Disease and other dementias.