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Table 2 Bias, 95% CI, and coefficient of variation of intra- and inter-observer CTR measurements from Manual and AI-assisted methods on normal and cardiomegaly dataset

From: Cardiothoracic ratio measurement using artificial intelligence: observer and method validation studies

Method

Intra-observer

Inter-observer

Bias (95% CI) (%)

CV(%)

Bias (95% CI) (%)

CV (%)

Manual

0.09 (−4.10 4.29)

1.51

−1.62 (−6.50 3.25)

2.13

AI-assisted

0.17 (−2.90 3.23)

1.10

−0.61 (−5.22 3.99)

1.72