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  • Cardiovascular Imaging

  • Locations

  • Rhode Island Hospital
    593 Eddy Street
    Providence, RI 02903

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    The Miriam Hospital
    164 Summit Avenue
    Providence, RI 02906

  • PET and PET/CT

  • Positron emission tomography, or PET, is a non-invasive, nuclear-medicine diagnostic procedure during which a radioactive tracer is injected into the body. By tracking the tracer’s distribution, PET is able to identify chemical and physiological changes related to metabolism. Almost all diseases alter the body’s biological processes, and PET is able to discover these changes in their earliest stages, often before any symptoms appear, and can provide physicians with important and accurate information.

    PET/CT combines the strengths of positron emission tomography (PET) with those of computed tomography (CT), which produces a detailed anatomic map of the body and shows structural abnormalities in minute detail. By superimposing the PET and CT data on one image, measuring both perfusion and metabolic activity within the heart, PET/CT scans can pinpoint areas of decreased blood flow such as that caused by artery blockages and can differentiate damaged muscle from healthy muscle. This information is particularly important in patients who have had previous myocardial infarction and who are being considered for a revascularization procedure.