Thyroidal radioisotope uptake in euthyroid cats : a comparison between 131I and 99MTcO4
Journal of the South African Veterinary Association
| Field | Value | |
| Title | Thyroidal radioisotope uptake in euthyroid cats : a comparison between 131I and 99MTcO4 | |
| Creator | Lambrechts, N. Jordaan, M.M. Pilloy, W.J.G. Van Heerden, J. Clauss, R.P. | |
| Description | Two thyroidal evaluation systems in euthyroid cats (n = 12) were compared. A single, confirmed hyperthyroid cat was included for interest. Firstly, thyroidal uptake of an intravenous bolus of approximately 111 MBq (3 mCi) 99MTcO4- was estimated by using a scintillation camera and calculating the ratio of thyroid to salivary activities at 20 min and 4 h. Thyroid to salivary activity ratios were 1:1 at 20 min and 2:1 at 4 h. Two discrete areas of salivary uptake were identified, namely a parotid/mandibular complex and a more rostral buccal/sublingual complex. These results were compared to radioiodine uptake of an oral dose of approximately 0.925 MBq (25 mCi) 131I using a standard thyroid uptake system, measured at 1, 2, 4, 6, 8, 10, 12, 24 and 48 h after administration. Mean radioiodine thyroidal uptake started at 33 % at 1 h, stabilised at 21 % between 4 and 24 h, and dropped to 18 % at 48 h. There was a significant correlation between the early thyroid:salivary ratio of the parotid/mandibular complex and the radioiodine uptake at 12 h. | |
| Publisher | AOSIS | |
| Date | 1997-07-13 | |
| Identifier | 10.4102/jsava.v68i2.866 | |
| Source | Journal of the South African Veterinary Association; Vol 68, No 2 (1997); 35-39 2224-9435 1019-9128 | |
| Language | eng | |
| Relation |
The following web links (URLs) may trigger a file download or direct you to an alternative webpage to gain access to a publication file format of the published article:
https://jsava.co.za/index.php/jsava/article/view/866/840
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