Effect of Thyroid Disease on Localization of Parathyroid Adenomas with Combined SPECT/CT and Ultrasound
| Finding | Sensitivity | Specificity | Negative predictive value | Positive predictive value |
| Normal (n = 86) | 82% | 97% | 85% | 96% |
| Atrophic (n = 5) | 100% (0.383) | 100% (0.847) | 100% | 100% |
| Benign nodules (no glandular enlargement) (n = 20) | 76% (0.194) | 100% (0.556) | 79% | 100% |
| Hashimoto thyroiditis (n = 4) | 100% (0.462) | 100% (0.875) | 100% | 100% |
| Multinodular goiter (n = 60) | 94% (0.069) | 96% (0.429) | 93% | 97% |
Data in parentheses are probability values.