Segmental Tc-99m bone scintigraphy
When is this exam indicated?
- In pre-surgical staging and monitoring of neoplasms;
- To verify presence, location and number of metastases;
- To investigate the extent of primary bone neoplasms;
- To investigate the extent of Paget's disease, ankylosing spondylitis;
- To study bone polytrauma, periosteal contusion, poor consolidation of traumatic fractures;
- To verify the reasons of bone pain for patients with normal radiography;
- To study inflammatory diseases with bone involvement (rheumatoid arthritis, sacro-ileitis, etc).
How is it performed?
The examination enables to detect bone alteration areas through the use of osteotropic radiopharmaceuticals (technetium 99m-marked diphosphonates), which accumulate in greater quantities in pathological areas than in healthy tissue.
The duration of the examination is approximately 3 hours.
It is recommended to take 2-3 glasses of water after the intravenous administration to facilitate the elimination of the radiopharmaceutical.
Allergic reactions, especially of the urticarial type, may occur rarely.