however, a single wall thickness of more than 3 to 4 mm and a pyloric length of more than 16 mm width more than 07mm are commonly accepted as abnormal. Additionally, the echogenic mucosal layer may appear hypertrophic, and real-time imaging should demonstrate little to no passage of gastric contents through the pylorus, along with hyperperistalsis of the stomach. cc global radiology cme thieme paeds