Nuclear Medicine - Octreoscan
What is an Octreoscan?
An Octreoscan is a specialized Nuclear Medicine exam used for diagnosis, staging, restaging and therapy effectiveness on neuroendocrine tumors, such as carcinoids, insulinomas, gastrinoma, neuroblastoma, pheocromocytoma or paraganglioma.
What are some common indications for the procedure?
Patients who undergo this procedure often complain of a flushed feeling, diarrhea, weight loss or weight gain, orhave been diagnosed with heart palpitations, congestive heart failure (CHF, Acromegaly, Cushing syndrome or an increase in serum tumor markers (CgA).
How should I prepare for the procedure?
No special preparation is necessary before an Octreoscan. Food and fluid intake do not need to be restricted.
How is the procedure performed?
A low dose of In-111-octreoscan will be injected slowly through an IV. For insulinoma patients only; a glucose fluid will be dripped in over a period of 20 minutes to keep the blood sugar level up. You will return 4 hours after the injection, 24 hours after the injection and possibly again 48 hours after the injection for images to be obtained.
How long will the procedure take?
You will return 4 hours after your injection for whole body images to be obtained over 20-30 mi9nutes. You will return 24 hours after your injection for additional whole body images and a SPECT scan of the pertinent area to be obtained over 1-2 hours. It may be necessary for you to return 48 hours after your injection for another SPECT scan if indicated by the whole body images.
Who interprets the results and how do I get them?
A radiologist will interpret the exam, and a signed report will be sent to your physician who will discuss the results with you.