Pediatrics Gastro Intestinal System 9b2205d1 Investigation of choice for congenital hypertrophic pyloric stenosis is? A Barium meal B Ultrasound C CT scan D MRI High-Yield Explanation b. Ultrasound(Ref: Nelson's 20/e p 1797-1799, Ghai 8/e p 279-280)USG confirms the diagnosis of congenital hypertrophic pyloric stenosis