[MOL] Benefits of Pet Scan (Chris) [00169] Medicine On Line


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[MOL] Benefits of Pet Scan (Chris)



Benefits of PET

    PET has fundamental advantages over other diagnostic imaging techniques because PET provides a direct measure of biochemistry and functional (e.g., metabolic) activity. Since precursors to disease are biochemical in nature and initially affect function, PET can save costs in the diagnosis and treatment of many significant disease conditions, including those in the fields of oncology, cardiology, and neurology.

    In oncology, PET is the only modality that can accurately image many organs of the body with a single pass to allow determination of malignancy. It can also provide information to determine whether a primary cancer has metastasized to other parts of the body. PET has demonstrated its usefulness in: cost-effective, whole-body metastatic surveys; avoiding biopsies for low grade tumors; non-invasive differentiation of tumors from radiation necrosis; early change in course of ineffective chemotherapy; and avoiding unnecessary diagnostic and therapeutic surgeries.

    In cardiology, PET enables physicians to screen for coronary artery disease, to assess flow rates and flow reserve, and to distinguish viable from nonviable myocardium for bypass and transplant candidates.

    In neurology, PET provides information for assessing various neurological diseases such as Alzheimer's and other dementias, Parkinson's, Huntington's, and Down's Syndrome. Additionally, it localizes epileptic foci for qualifying and identifying the site for surgical intervention. It also allows the characterization, grading and assessment of possible brain tumor recurrence.

    The Institute for Clinical PET (ICP) has done several studies that document PET's cost-effectiveness in the treatment of certain diseases.