Thyroid scanning with gallium-67 and cesium-131.

The roles of 131Cs and 67Ga in the evaluation of solitary thyroid nodules were investigated. Radionuclide scans were performed with 67Ga and 131I in 27 patients and with 131Cs and 131I in 43 patients. Gallium-67 detected only two of eight malignant nonfunctioning nodules and 131Cs detected one of three such nodules.

Comparison of various treatment schedules for accelerating the elimination of radioiodine from the thyroid and the human body.

In 68 euthyroid patients undergoing 131I thyroid function tests the thyroidal, urinary and plasma protein-bound radioactivity has been serially measured for 14 days. The patients were subdivided in controls and 9 groups treated with potassium iodide, carbimazole, potassium perchlorate and TSH, singly or in combination. The aim was to devise a treatment scheme for accelerating the release of iodine from the thyroid and the elimination from the body in cases of accidental radioiodine poisoning if the patient is seen after the radioiodine has already been taken up by the gland.