Table 3 Comparison of the AUC performance between four different experimental conditions

Baseline-based entire vs. fluid regions

0.135

After the loading phase-based entire vs. fluid regions

0.718

Entire region-based baseline vs. after the loading phase

< 0.001

Fluid region-based baseline vs. after the loading phase

0.009

Entire region at baseline vs. fluid region at after the loading phase

< 0.001