Open AccessQuantitative Aspects of Thyroid Scintigraphy With Pertechnetate ( 99m TcO 4 ) in Cats
Author(s) -
Nap Ariana M.P.,
Pollak Yvonne W.E.A.,
Brom Walter E.,
Rijnberk Ad
Publication year - 1994
Publication title -
journal of veterinary internal medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.356
H-Index - 103
eISSN - 1939-1676
pISSN - 0891-6640
DOI - 10.1111/j.1939-1676.1994.tb03238.x
Subject(s) - medicine , pertechnetate , cats , scintigraphy , thyroid , nuclear medicine
Thyroidal 99m TcO 4 (pertechnetate) uptake percentages were determined in unanesthetized euthyroid (n = 13) and hyperthyroid (n = 18) cats. Maximal uptakes were observed 60 minutes after IV injection of the radionuclide and ranged from 0.3 to 3.9% of the dose in euthyroid cats (median 2.23%) and from 5.2% to 23.9% of the dose in hyperthyroid cats (median 14.8%) ( P < .05). There were no overlaps in pertechnetate uptake percentages during any of the intervals evaluated. It is concluded that the optimal time for visualization of the thyroid by 99m TcO 4 ‐scanning is 60 minutes after IV injection of the radionuclide. Calculation of the percentage uptake is of additional diagnostic value.