1 | Initial staging for malignant IA thyroid tissue after thyroidectomy | Appropriate | 9 |
2 | Assessing and quantifying residual IA remnant tissue | Appropriate | 9 |
3 | Posttherapy 131I localization performed at 2–10 d after radioiodine therapy | Appropriate | 9 |
4 | Inappropriately elevated Tg (or elevated anti-TgAb) level after thyroidectomy | Appropriate | 9 |
5 | Follow-up/diagnostic/restaging evaluation scan | Appropriate | 8 |
6 | Follow-up/diagnostic/restaging evaluation scan with prior negative results of 131I posttherapy images | May be appropriate | 5 |
7 | Follow-up/diagnostic/restaging evaluation scan to determine whether structural lesion is IA | Appropriate | 9 |
8 | Planar and tomographic radioiodine imaging in pregnant or lactating patients | Rarely appropriate | 1 |