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You have had a gamma scan of your blood vessels. The aim was to examine the blood circulation in certain parts of your body.

The gamma scan first involved injecting special materials into an artery. Arteries are blood vessels that transport blood away from the heart. They supply all the tissue in the body with oxygen-rich blood.

The materials then spread through your body via your blood. They give off weak radiation for a certain time. After a certain time, a special camera was used to measure the radiation. This enabled an assessment of how your blood has been flowing through particular blood vessels.

This examination was done in order to plan a special treatment. This treatment plan involves injecting some tiny materials into an artery, which then accumulate in the associated tissue. The materials give off radiation so that they can destroy the affected tissue. Each artery supplies one area of the body with blood. The exact assignment of these areas can vary from person to person. The treatment has to be planned precisely and the blood supply has to be properly understood if only unhealthy tissue is to be targeted and destroyed.