title: Real-time assessment of gastroduodenal motility by ultrasonography.
abstract: Functional dyspepsia (FD) is a clinical syndrome involving upper abdominal symptoms, the causes of which cannot be identified by conventional diagnostic evaluation. Many pathophysiological factors, such as gastric acid, gastroduodenal motility, gastric accommodation, sensory disturbance, stress and Helicobacter pylori infection, may play a role in the pathogenesis of FD. Dysmotility of the upper gastrointestinal tract has been implicated in the symptoms of FD. In previous studies, antral hypomotility and delayed gastric emptying have been reported as major pathogenetic factors in patients with FD. Although a number of methods have been applied to evaluate gastroduodenal motility in humans, many of them have technical limitations and are too expensive or complex to use in daily clinical practice. Recent technical developments enable one to evaluate gastroduodenal motility by using ultrasonography. Ultrasonography is a simple, noninvasive modality for the assessment of gastric emptying and antral motility in either a liquid or solid meal, along with the examination of duodenogastric reflux.
authors.affiliation: Division of Gastroenterology, Department of Internal Medicine, Kawasaki Medical School, Kurashiki, Japan. kharuma@med.kawasaki-m.ac.jp
authors.forename: Ken
authors.initials: K
authors.lastname: Haruma
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Kusunoki
authors.forename: Noriaki
authors.initials: N
authors.lastname: Manabe
authors.forename: Tomoari
authors.initials: T
authors.lastname: Kamada
authors.forename: Motonori
authors.initials: M
authors.lastname: Sato
authors.forename: Manabu
authors.initials: M
authors.lastname: Ishii
authors.forename: Akiko
authors.initials: A
authors.lastname: Shiotani
authors.forename: Jiro
authors.initials: J
authors.lastname: Hata
mesh_terms: D004386:Duodenum / Q000000981:diagnostic imaging* / Q000503:physiopathology; D004415:Dyspepsia / Q000000981:diagnostic imaging* / Q000503:physiopathology; D005769:Gastrointestinal Motility / Q000502:physiology*; D006801:Humans; D015203:Reproducibility of Results; D013270:Stomach / Q000000981:diagnostic imaging* / Q000503:physiopathology; D014463:Ultrasonography