Table 3 Diagnostic performance between 2 groups
Low-dose group (n = 100) | Standard-dose group (n = 100) | P value | |
|---|---|---|---|
Technical success rate | 100% | 100% | – |
Biopsy pathological diagnosis | 0.976 | ||
Malignancy | 64 | 61 | |
Suspected malignancy | 1 | 1 | |
Specific benign | 4 | 4 | |
Non-specific benign | 31 | 34 | |
Final diagnosis | 0.877 | ||
Malignancy | 71 | 70 | |
Benign | 29 | 30 | |
Diagnostic performance | 0.830 | ||
True positive | 65 | 62 | |
False positive | 0 | 0 | |
True negative | 29 | 30 | |
False negative | 6 | 8 | |
Diagnostic yield | 68/100 (68%) | 65/100 (65%) | 0.653 |
Sensitivity | 65/71 (91.5%) | 62/70 (88.6%) | 0.554 |
Specificity | 29/29 (100%) | 30/30 (100%) | – |
Overall accuracy | 94/100 (94%) | 92/100 (92%) | 0.579 |