Positron Emission Tomography (PET)
Positron emission tomography (PET) and computerized tomography (CT) are both state-of-the-art imaging modalities. PET/CT is a revolutionary technology that combines two distinct diagnostic images allowing physicians to pinpoint the location and extent of cancer and other irregularities within the body.
A CT scan helps detect and localize anatomical features such as the size, shape and exact location of abnormalities, while PET images the biology of disorders at the molecular level, allowing the physician to detect abnormalities in cellular activity at a very early stage. PET/CT is utilized for the diagnosis and treatment planning of cancer, neurologic disorders and even coronary artery disease.
What to expect during a PET/CT
To begin a PET/CT, a radiopharmaceutical is injected through a vein and then allowed to circulate during an incubation period of 45 to 60 minutes. After that delay the actual scan will begin. The imaging portion of the exam will typically last 20 to 30 minutes.