Nuclear Medicine - Parathyroid Adenoma
What is Parathyroid Imaging?
Parathyroid imaging is a diagnostic exam for the detection of Parathyroid Adenoma. The use of a small amount of radioactive T1-210, 99mTc, or 99mTc-MIBI is injected.
Increase in calcium levels in the body
Prior parathyroid adenoma
- 99mTc-MIBI is the most widely used technique today.
- You will be in the department for 2-5 minutes for a injection of Tc-MIBI
- 10-15 minutes after injection images will be taken, taking 5-10 minutes
- You will return 3 hours after 1st images for more images and a SPECT
- 2nd images will take 10-15 minutes
- SPECT is a specialized study where the camera rotates around you taking 20-30 minutes
- 201T1, 99mTc or 99mTc-MIBI, 99mTc subtraction is used if 99mTc-MIBI alone is equivocal
- You will receive a hep-loc for an injection of 201T1 or 99mTc-MIBI for 5 minutes
- You will return 3-4 hours after injection for 4 images. LAO, RAO, 2 ANT images
- 3 images will be with a pinhole and 1 ANT with a parallel hole
- Images will take 10 minutes except the parallel is by counts
- You will need to remain still for another injection of 99mTc
- 10 minutes after injection an ANT parallel hole image by counts for subtraction.