Observational Study
Copyright ©The Author(s) 2020.
World J Gastroenterol. Sep 14, 2020; 26(34): 5169-5180
Published online Sep 14, 2020. doi: 10.3748/wjg.v26.i34.5169
Figure 4
Figure 4 Type of lesions: A: Real homogeneous; B: Simulated homogeneous that refers to the liquid component inside the polyvinyl alcohol (PVA) phantom (blue arrow), surrounded by 15% PVA (concentration 9) and 20% PVA (concentration 10).