Thyroid Iodine (Child)

  • Preparation for scan is required. Please contact our practice. 

Iodinated MIBG (I-123) is concentrated in the adrenal medulla and while the quantity taken up is insufficient to image normal adrenals, in patients with phaeochromocytoma, neuroblastoma, and adrenal medullary hyperplasia, uptake is much higher. Imaging with I-123 MIBG may also be used to assess uptake prior to therapy with much larger quantities. The patient's thyroid must be blocked with potassium iodide prior to administration of the radiopharmaceutical. Imaging is generally commenced 24 hours after administration and may be repeated at 48 and 72 hours.

Used to assess:

The function of an infant’s Thyroid gland to determine whether it is over or under active. Phaeochromocytoma Neuroblastoma Adrenal medullary hyperplasia

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How to book

Patients will need to be referred to Nuclear Med by a referring doctor. Patients must select the specific scan/study required by their referring doctor and book an appointment at the most convenient location.


  • Medical aid authorisation (referring doctor to provide patient with specific ICD 10 code for medical aid authorisation)
  • Referring doctor’s name and practice number
  • Newly diagnosed oncology patients may need to register for oncology (referring doctor to facilitate registration)