Abstract
Positron emission tomography (PET) is a noninvasive medical imaging technology that can generate high-resolution images of human and animal physiological functions. It is used for a variety of clinical applications in oncology, neurology, and cardiology, but the principal clinical application of PET is in oncology, where it is used to locate malignant tumors. It can be used not only to detect disease, but also to help in planning its treatment and monitoring the effectiveness of the treatment. The PET camera can detect therapeutic changes earlier than anatomic imaging modalities because the structure being studied must significantly change in size and shape before it is detectable by anatomic imaging devices.
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