Table 1 iBE accuracy measures by definitive quadrants
From: A cost-effective handheld breast scanner for use in low-resource environments: a validation study
Total definitive quadrants N = 342 | Mass positive | Mass negative | Measures |
|---|---|---|---|
Test positive quadrant | 66 | 28 | PPV = 70.2 % |
Test negative quadrant | 11 | 237 | NPV = 95.6 % |
Measures | Sn = 85.7 % | Sp = 89.4 % | Accuracy = 88.6 % |