Parathyroid Lesion Localization: Pinhole Versus Parallel-Hole Imaging
| Index | Pinhole | Parallel-hole | Difference (%) | χ2 (df = 1) | Confidence interval (%) | P |
|---|---|---|---|---|---|---|
| Sensitivity | 48/54 (89%) | 30/54 (56%)* | 33 | 13.1 | 17 to 49 | 0.0003 |
| Specificity | 43/46 (93%) | 44/46 (96%) | 2 | 0.001 | −7 to +11 | 0.29 |
| Accuracy | 91/100 (91%) | 74/100 (74%)* | 17 | 8.9 | 7 to 27 | 0.003 |
| PPV | 48/51 (94%) | 30/32 (94%) | 0 | 0.23 | −11 to +11 | 0.78 |
| NPV | 43/49 (88%) | 44/68 (65%)* | 23 | 6.8 | 9 to 38 | 0.01 |
↵* P < 0.05 for parallel-hole vs. pinhole imaging values.
df = degrees of freedom; PPV = positive predictive value; NPV = negative predictive value.