Postprandial gall bladder contraction seen under ultrasound to rule out non functioning gall bladder in patients of flatulent dyspepsia

Thirty patients with flatulent dyspepsia selected. Ultrasound examination pre and postprandial done. 26 had normal postprandial gall bladder contraction. 4 patients found to be having non functional gall bladder as it did not show postprandial contraction. They were advised to have oral cholecystography and one of these 4 patients was found to have stone impacted in neck of gall bladder