Experimental model standardizing polyvinyl alcohol hydrogel to simulate endoscopic ultrasound and endoscopic ultrasound-elastography

Figure 6 Cystic lesion: A: A hypoechoic image surrounded by a hyperechoic wall is visible, which produces a posterior reinforcement compatible with a pseudocyst of the pancreas (real image); and B: Endoscopic ultrasound contrast of the interior and exterior of the polyvinyl alcohol phantom (concentration 10): A hypoechoic image (inside) surrounded by a hyperechoic image (wall).