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Table 6 Intra-observer variability (ICC) between sonographers of varying experience levels and AI.

From: Automatic segmentation of 15 critical anatomical labels and measurements of cardiac axis and cardiothoracic ratio in fetal four chambers using nnU-NetV2

Operator

CAX

ICC (95%CI)

CTR

ICC (95%CI)

Senior

0.83(0.75 ∼ 0.88)

0.81(0.74 ∼ 0.87)

Intermediate

0.73(0.61 ∼ 0.82)

0.81(0.73 ∼ 0.87)

Junior

0.68(0.39 ∼ 0.82)

0.75(0.66 ∼ 0.83)