Made available in DSpace on 2018-12-11T17:38:24Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-01-01; Background: Adequate preoperative fasting is critical in preventing pulmonary aspiration of gastric content. We proposed to study the sonographic gastric content dynamics after the ingestion of liquid or solid food in healthy volunteers and confront it with current guidelines for preoperative fasting ti...