Value of thyroid carcinoma imaging after therapeutic doses of radioiodine.
Thyroid carcinoma scans in the immediate post-therapy period after therapeutic doses of I-131 for well-differentiated thyroid carcinoma showed additional lesions in ten of 24 (42%) patients or on 13 of 42 (31%) occasions, whereas the corresponding pretreatment diagnostic scans done with a small test dose failed to reveal the lesions. In four patients, lesions were only discernible on the regional rectilinear scan views and not on the total-body images. The value of post-therapy scans and the importance of obtaining the regional views are emphasized.
D000230:Adenocarcinoma / Q000000981:diagnostic imaging* / Q000532:radiotherapy; D002291:Carcinoma, Papillary / Q000000981:diagnostic imaging* / Q000532:radiotherapy; D006801:Humans; D007457:Iodine Radioisotopes / Q000627:therapeutic use*; D008171:Lung Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging; D011877:Radionuclide Imaging; D012886:Skull / Q000000981:diagnostic imaging; D013959:Thyroid Diseases / Q000000981:diagnostic imaging* / Q000532:radiotherapy; D013964:Thyroid Neoplasms / Q000000981:diagnostic imaging* / Q000532:radiotherapy
D007457:Iodine Radioisotopes