title: Principles of endosonography and imaging.
abstract: Accurate interpretation of ultrasound images requires knowledge of the principles of ultrasound and how it interacts with tissue. This article outlines the important principles that every endosonographer should know and provides clinical implications to make the material relevant to endosonographers.
authors.affiliation: Department of Gastroenterology and Hepatology, St. Josephs Health Care, University of Western Ontario, 268 Grosvenor St, London, Ontario N6A 4V2, Canada. nadayhuss@hotmail.com
authors.forename: Nadeem
authors.initials: N
authors.lastname: Hussain
authors.forename: Robert H
authors.initials: RH
authors.lastname: Hawes
mesh_terms: D019160:Endosonography; D006801:Humans; D013016:Sound