Table 3 Breast CNB accuracy according to gauge, lesion type, lesion size and calcifications
From: Accuracy of 16/18G core needle biopsy for ultrasound-visible breast lesions
False-negative | Underestimation | Complete sensitivity | Absolute sensitivity | Agreement | |
|---|---|---|---|---|---|
n (%) | n (%) | % | n (%) | n (%) | |
18G (n = 389) | |||||
Mass | 4/327 (1.2) | 19/38 (50) | 98.8 | 308/327 (94.2) | 343/366 (93.7) |
Non-mass | 1/19 (5.3) | 4/9 (44.4) | 94.7 | 17/19 (89.5) | 18/23 (78.3) |
Mass Size (mm) | |||||
≤10 | 2/47 (4.3) | 6/18 (33.3) | 95.7 | 39/47 (83.0) | 52/60 (86.7) |
11–20 | 1/134 (0.7) | 7/10 (70) | 99.3 | 129/134 (96.3) | 141/149 (94.6) |
21–50 | 1/137 (0.7) | 6/10 (60) | 99.3 | 131/137 (95.6) | 139/146 (95.2) |
>50 | 0/9 (0) | 0/0 (0) | 100 | 9/9 (100) | 11/11 (100) |
Calcifications | |||||
Present | 2/133 (1.5) | 6/15 (40) | 98.5 | 129/133 (97.0) | 135/143 (94.4) |
Absent | 3/213 (1.4) | 17/32 (53) | 98.6 | 196/213 (92.0) | 226/246 (91.9) |
Overall | 5/346 (1.4) | 23/47 (48.9) | 98.6 | 325/346 (93.9) | 361/389 (92.8) |
16G (n = 566) | |||||
Mass | 7/488 (1.4) | 33/68 (48.5) | 98.6 | 460/488 (94.3) | 505/545 (92.7) |
Non-mass | 0/17 (0) | 3/8 (37.5) | 100 | 14/17 (82.4) | 18/21 (85.7) |
Mass Size (mm) | |||||
≤10 | 2/58 (3.4) | 10/19 (52.6) | 96.6 | 50/58 (86.2) | 60/72 (83.3) |
11–20 | 3/208 (1.4) | 14/24 (58.3) | 98.6 | 198/208 (95.2) | 215/232 (92.7) |
21–50 | 2/213 (0.9) | 9/24 (37.5) | 99.1 | 203/213 (95.3) | 219/230 (95.2) |
>50 | 0/9 (0) | 0/1 (0) | 100 | 9/9 (100) | 11/11 (100) |
Calcifications | |||||
Present | 2/166 (1.2) | 6/18 (33.3) | 98.8 | 162/166 (97.6) | 168/176 (95.5) |
Absent | 5/339 (1.5) | 30/58 (51.7) | 98.5 | 312/339 (92.0) | 355/390 (91.0) |
Overall | 7/505 (1.4) | 36/76 (47.4) | 98.6 | 474/505 (93.9) | 523/566 (92.4) |