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. 2021 Jun 21;21:102. doi: 10.1186/s12880-021-00628-x

Table 2.

Tabulated values for the image characteristics for both investigated scanning methods

No. of lesions value k value K value sub-feature
CUS AUS-1 AUS-2 C-A A1-2 C-A A1-2
Boundary 0.7424 0.6531
Morphology 0.7217 0.6762
Aspect ratio 0.6741 0.6439
Internal echo 0.6419 0.6137
 Cyst 161 132 149 0.8157 0.8756
 Mixed echogenic 66 73 62 0.5132 0.4783
 Solid 99 94 98 0.7425 0.7774
BI-RADS assessment 0.6241 0.5981
 2 171 141 148 0.5768 0.5174
 3 128 122 130 0.8243 0.8786
 4A, 4B, 4C, 5 27 36 31 0.5132 0.4378

Data in bold are almost perfect agreement

CUS represents the conventional US scan method; AUS represents the AI breast US scan method; C-A represents the k Value between the AI breast US scan method and AI breast US scan method; A1-2 represents k Value between the two readers of AI breast US scan method