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. 2020 May 23;24(2):143–150. doi: 10.1007/s40477-020-00476-5

Table 2.

Interobserver agreement for US-BI-RADS descriptors

All readers P value ER, GR1 and GR2 P value Senior Residents P value
Without S-Detect V2 With S-Detect V2 Without S-Detect With S-Detect V2 Without S-Detect V2 With S-Detect V2
Kappa (95% CI) Kappa (95% CI) Kappa
(95%CI)
Kappa
(95%CI)
Kappa
(95%CI)
Kappa
(95%CI)
Shape

0.4217

(0.3465; 0.4969)

0.6118

(0.5522; 0.6713)

 < 0.0001 0.6154 (0.4491;0.7816)

0.6389

(0.4489; 0.8289)

0.4296

0.3104

(0.1165;0.5044)

0.553

(0.4431; 0.6629)

 < 0.0001
Margin 0.2041 (0.1524;0.2559)

0.4821

(0.4360; 0.5282)

 < 0.0001 0.2791 (0.1302;0.4280)

0.4078

(0.2659; 0.5502)

 < 0.0001

0.1494

(− 0.0028;0.3016)

0.4477

(0.3619; 0.5339)

 < 0.0001
Echo Pattern

0.2604

(0.2006;0.3201)

0.3907

(0.3436; 0.4377)

 < 0.0001 0.3313 (0.1319;0.5307)

0.3406

(0.1825; 0.4986)

0.7559

0.2912

(0.0734;0.5090)

0.3737

(0.2865; 0.4610)

0.0032
Orientation 0.4179 (0.3236;0.5122) 0.7000 (0.6274;0.7725)  < 0.0001 0.7637 (0.6094;0.9181)

0.8577

(0.6283; 1.0871)

0.0044

0.1667

(− 0.0611; 0.3944)

0.7262

(0.5937; 0.8586)

 < 0.0001

Posterior

features

0.2868 (0.2183;0.3553)

0.5221

(0.4718; 0.5725)

 < 0.0001 0.3588 (0.0573;0.6603)

0.4113

(0.2523; 0.5703)

0.1909

0.3648

(0.1809; 0.5488)

0.4697

(0.3776; 0.5617)

 < 0.0001
Final assessment 0.3019 (0.2332;0.3706) 0.631 (0.5733;0.6887)  < 0.0001 0.2695 (0.0808;0.4582) 0.6866 (0.5390;0.8342)  < 0.0001 0.2684 (0.0897;0.4470) 0.4510 (0.3427;0.5594)  < 0.0001

ER expert radiologist, GR general radiologists