Nuclear medicine / scintigraphy
Nuclear scintigraphy has many uses, including:
1) Diagnose congenital and acquired portosystemic shunts.
2) Characterize hyperthyroidism in cats (benign vs. malignant disease, presence of ectopic tissue, potentially help in choosing a dose for I-131).
3) Characterize individual glomerular filtration rate (kidney function) in cases of unilateral kidney cancer or obstruction.
4) Diagnose active bone lesions.
These tests are based on the use of a small amount of radioactive material to diagnose various conditions in dogs or cats. Patients need to undergo heavy sedation or general anesthesia for these tests. Patients are typically radioactive for 12-24 hours.