Endoscopic Ultrasound Shear Wave Elastography in Patients With Non-alcoholic Fatty Liver Disease

To perform the portion of the endoscopic ultrasound exam using this device, the endoscopic ultrasound probe is placed onto the surface of the stomach with the probe facing the left liver. The probe then transmits shear waves that propagate through the tissue. The waves themselves are ultrasound waves and are harmless. This is repeated 10 times on a region of interest as guided by the endoscopic ultrasound probe. The device used in question is the linear EUS (Aloka Arietta 850, Olympus America, Center Valley, PA).