Nuclear Medicine
Nuclear Medicine
What Is It?

A PET-CT combines the imaging benefits of both nuclear medicine and CT to evaluate and pinpoint abnormal metabolic activity, especially helpful in detecting, diagnosing, and determining progression of cancer or effectiveness of cancer treatment. A PET-CT is also used to evaluate brain function or abnormalities such as seizures and memory loss.
Examples of procedures include:
Hepatobiliary
A hepatobiliary nuclear medicine study evaluates parts of the biliary system, including the gallbladder, bile ducts, and liver. As with other nuclear medicine exams, a radiotracer is used to pinpoint the area of concern and provide information more useful in certain diagnoses than an x-ray, CT or MRI scan.
Positron-Emitted Tomography - Computed Tomography (PET-CT)
A PET-CT combines the imaging benefits of both nuclear medicine and CT to evaluate and pinpoint abnormal metabolic activity, especially helpful in detecting, diagnosing, and determining progression of cancer or effectiveness of cancer treatment. A PET-CT is also used to evaluate brain function or abnormalities such as seizures and memory loss.
Myocardial Perfusion
Myocardial perfusion imaging (MPI) is often called a nuclear stress test and shows how well blood flows through your heart muscle. This test is often used to determine if you have a blockage in your coronary arteries, damage from a heart attack, or if you would benefit from a coronary angiogram, stent, or bypass surgery. For this exam, you may also be required to abstain from caffeine for 24 hours and food 4 to 6 hours prior to the exam.
- Nuclear exam of an abscess
- Whole-body nuclear exams

Before your exam
Depending upon the exam type, you could swallow the radiotracer, inhale it as a gas, or have it injected. Wear loose-fitting clothing and be prepared to wear a gown during the exam. Remove all jewelry or metallic accessories and let the physician know of any medications, allergies, recent illness, or medical conditions you may have. Let your physician know if you may be pregnant or breastfeeding.
Time required
for your exam
Depending upon how the radiotracer is injected, it can take several seconds to several days for the radioactive material to accumulate in the area under study. The actual imaging exam takes 20 minutes to several hours and can take place over multiple days.
Contact us today to schedule your appointment.

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Adventist Health Portland
10123 SE Market Street
Portland, Oregon 97216
503.251.6137
Gresham Imaging Center
831 NW Council Drive
Gresham, Oregon 7030
503.251.6137
Clackamas Medical Plaza
Adventist Health Columbia Gorge
1700 E. 19th Street
The Dalles, Oregon 97058
541.296.7251
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