Tc-99m pertechnetate trapping and thyroid function in Hashimoto's thyroiditis.
Tc-99m pertechnetate thyroid imaging was studied in 52 patients with Hashimoto's thyroiditis, with special reference to the thyroid functional state and Tc-99m trapping by the gland. The most common finding was diffusely increased trapping of radioactivity, a pattern similar to Graves' disease. On the other hand, the increased trapping in Hashimoto's thyroiditis was usually associated with hypothyroidism. The degree of Tc-99m trapping did not correlate with the degree of the endogenous TSH elevation. However, increased Tc-99m trapping could predict the reversibility of hypothyroidism in just 3 months.
Department of Nuclear Medicine, Chang Gung Memorial Hospital, Chang Gung Medical College, Kaohsiung, Taiwan, R.O.C.
P W
PW
Wang
H Y
HY
Chen
C H
CH
Li
R T
RT
Liu
W Y
WY
Chien
S C
SC
Tung
D000328:Adult; D005260:Female; D006801:Humans; D011877:Radionuclide Imaging; D013670:Sodium Pertechnetate Tc 99m; D013960:Thyroid Function Tests; D013961:Thyroid Gland / Q000000981:diagnostic imaging* / Q000503:physiopathology; D013967:Thyroiditis, Autoimmune / Q000000981:diagnostic imaging* / Q000503:physiopathology; D013972:Thyrotropin / Q000378:metabolism; D013974:Thyroxine / Q000378:metabolism; D013997:Time Factors
D013972:Thyrotropin; D013670:Sodium Pertechnetate Tc 99m; D013974:Thyroxine