Influence of low grade exercise on skeletal scintigraphy using Tc-99m methylene diphosphonate.

Background: Tc-99m methylene diphosphonate [MDP] bone scan is the basis of the skeletal imaging in nuclear medicine being a highly sensitive tool for detecting bone diseases. Mechanical stimulation induced by low grade exercise or whole-body vibration appears to be advantageous regarding the maintenance and/or improvement of skeletal mass in humans. We aimed to assess the physiological influence of low grade exercise on the quality of skeletal scintigraphy using Tc-99m MDP.

Response rate and factors affecting the outcome of a fixed dose of RAI-131 therapy in Graves' disease: a 10-year Egyptian experience.

The aim of this study was to evaluate response and compare the success rate of two different doses of iodine-131 ((131)I) therapy in the treatment of Graves' disease and investigate the factors that may affect outcome. A retrospective analysis was carried out on 321 patients treated with (131)I for Graves' disease. Group 1 (155 patients) received 8 mCi and group 2 (166 patients) received 12 mCi.