RT Journal
A1 Wallner RJ
T1 DIscrepancies in thyroid scans
JF JAMA
JO JAMA
YR 1979
FD April 6
VO 241
IS 14
SP 1461
OP 1462
DO 10.1001/jama.1979.03290400021007
UL http://dx.doi.org/10.1001/jama.1979.03290400021007
AB To the Editor.— 
    This letter is in reference to the article, "Discrepancies Between Iodine and Technetium Thyroid Scintigraphy," by Barth et al (240:463, 1978).I have reviewed this article again following publication of the corrections in The Journal (240:1340,1978). The illustrations are upside down. Figure 1 should be reversed with Fig 4, and Fig 2 should be reversed with Fig 3. However, the legends to the illustrations are correct after the figures have been repositioned. There are still several things that disturb me concerning the cases presented.In case 1, a barely minimal scanning dose of radionuclides was used. The 20-minute uptake of technetium in a normal thyroid gland is in the range of 4%,1 which would make the scanning dose of technetium Tc 99m 20 μCi or less. If the scan using iodine 131 was performed at the 24- or 48-hour interval, the scanning dose was in the range