Scoring System for Semiquantitative Visual Assessment of Thyroid Uptake
| Score | Characterization |
| 0 | No identifiable thyroid visualization |
| 0.5 | Faint uptake in neck, not definitively identifiable as thyroid gland |
| 1 | Subtle but distinct thyroid uptake, less than salivary glands if visualized |
| 2 | Moderate distinct thyroid uptake, equal to salivary glands if visualized |
| 3 | Significant thyroid uptake, greater than salivary glands if visualized and less than dome of liver |
| 4 | High thyroid uptake; maximum activity similar to dome of liver |