Table 2. Obtained the distribution of benign and malignant nodules corresponding to each score value, and classification of ACR TIRADS and R-TIRADS.
| Score | Percentage of benign nodules | Percentage of Malignant Nodules | ACR TIRADS (percentage of malignant nodules) | Revised TIRADS (percentage of malignant nodules) |
|---|---|---|---|---|
| 0 | 7/7 (100.00) | 0/7 (0.00) | 0/7 (0.00) | TR 1, 0/7 (0.00) |
| 2 | 25/26 (96.15) | 1/26 (3.85) | 1/26 (3.85) | TR 2, 1/26 (3.85) |
| 3 | 33/36 (91.67) | 3/36 (8.33) | 3/36 (8.33) | TR 3, 3/36 (8.33) |
| 4 | 37/48 (77.08) | 11/48 (22.92) | TR 4, 32/111 (28.83) | TR 4a, 32/111 (28.83) |
| 5 | 17/23 (73.91) | 6/23 (26.09) | ||
| 6 | 25/40 (62.50) | 15/40 (37.50) | ||
| 7 | 15/46 (32.61) | 31/46 (67.39) | TR 5, 193/245 (78.78) | TR 4b, 44/68 (64.71) |
| 8 | 9/22 (40.91) | 13/22 (59.09) | ||
| 9 | 11/66 (16.67) | 55/66 (83.33) | TR 5, 149/177 (84.18) | |
| 10 | 9/46 (19.57) | 37/46 (80.43) | ||
| 11 | 2/13 (15.38) | 11/13 (84.62) | ||
| 12 | 2/24 (8.33) | 22/24 (91.67) | ||
| 13 | 4/24 (16.67) | 20/24 (83.33) | ||
| 14 | 0/2 (0.00) | 2/2 (100.00) | ||
| 15 | 0/2 (0.00) | 2/2 (100.00) |
Data are shown as n/total (%). ACR, American College of Radiology; TIRADS(TR), Thyroid Imaging Reporting and Data System; R-TIRADS, revised Thyroid Imaging Reporting and Data System.