Octreoscan is a diagnostic imaging test that can find primary and metastatic neuroendocrine tumors.

How to prepare

You will be asked to empty your bladder before the scan begins. If you need to return for another set of pictures at 24 and 48 hours, you may be asked to take a mild laxative prior to those scans.

What to expect

When you arrive at the nuclear medicine area at the Imaging Center an IV will be placed in a vein in your arm. The nuclear medicine technologist injects a special radioactive “tracer”. This “tracer” will help visualize the scanned images.

You will lie on your back on the exam table. You can breath normally during the scan, but please stay as still as possible. Pictures or images will be taken of different locations on your body. The scanning process usually takes one to two hours.

What happens to the radioactive material?

Most of the radioactive material will be eliminated in your urine or stool. The rest will simply disappear over a brief period of time.


You can resume your normal activities immediately after the test.


A doctor who has specialized training in nuclear medicine will interpret the gallbladder images. A report will be dictated and sent to your doctor. It usually takes 1-2 days for your physician to receive the results.

Contact your doctor’s office for results.