Dr MJ (Ria) Bester


GI Bleeding Scan

Why is the scan performed?

The scan is normally requested by your doctor in cases where there is an acute gastro-intestinal (gut) bleeding and where this bleeding cannot be localised by gastroscopy or colonoscopy. In difficult cases of chronic gastrointestinal bleeding, these scans are sometimes also requested.

How does it work?

A sample of you blood (normally about 5 ml) is withdrawn from a vein in your arm, labelled or tagged with a radioisotope (normally Technetium) and then reinjected in your arm while you are laying under the gamma camera. The procedure to label the red blood cells is performed in a laboratory.

Serial dynamic views are obtained for about 60 min. If no bleeding is demonstrated within the hour, additional serial static images may be necessary until 3h. Sometimes additional views at 24h can be requested by the physician. 

Gastro-intestinal bleed

Click image to view


Dr Ria Bester is a nuclear medicine specialist based in Bellville, Cape Town. Dedicated to the practice of nuclear medicine and its benefits, Dr Bester and her team are able to provide patients with a wide range of services.
These include skeletal scans, infection imaging, thyroid scans, gastric emptying, "milk scans" to evaluate gastro-oesophageal reflux in children, hepato-biliary scans, blood volume studies, renograms and renal scans, as well as lung, cardiac and sentinel node scans in patients with breast carcinoma and melanoma.


021-945 3420 / 021-945 3421

021 595-1201 / 021 595-1202

Email: ria@riabester.co.za
Accounts: accounts@riabester.co.za