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©The Author(s) 2025.
World J Gastroenterol. Nov 14, 2025; 31(42): 112196
Published online Nov 14, 2025. doi: 10.3748/wjg.v31.i42.112196
Figure 4
Figure 4 Example of automated lesion segmentation vs expert ground truth. A: Original B-mode contrast-enhanced ultrasound image with a visible liver lesion; B: Gastroenterologist’s manual segmentation mask (ground truth); C: U-Net model predicted lesion mask on the same frame.


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