2. Introduction
•-There are four parathyroid glands located alongside
and sometimes within the thyroid gland.
•-There are usually two parathyroid glands near the left
lobe of the thyroid and two near the right lobe.
•-They are small, oval-shaped glands each approximately
6 mm and weighing approximately 30–50 mg.
3. Indication
•Localization of primary and secondary parathyroid
cancer
•Localization of hyperfunctioning parathyroid tissue
(adenoma/ hyperplasia).
•Localization of hyperfunctioning parathyroid tissue in
patients with persistent or recurrent disease
4. Contraindication
•-Pregnant women
•-patient on calcium medication
•- patient on thyroid medication (off for 5 days)
•Precaution
•Precaution: Discontinuation of breast feeding for
nursing mothers for 24 hours after imaging.
9. PROCEDURE
• Prepare the camera and Place patient in supine
position, pillow under shoulders, head back, neck
extended.
• • Position camera anterior over extended neck and
mediastinum.
• Remove any attenuating necklaces or pendants.
• • Instruct patient to remain motionless during
acquisitions.
10. • Acquire ANT dynamic images.
• Oblique views may be requested by the physician
• Repeat all images at approximately 2hours after
injection. Use the same camera, and as close as
possible to the original patient positions and
collimator positions.