Functional oesophago-gastric junction imaging

Despite its role in disease there is still no definitive method to assess oesophago-gastric junction competence （OGJ）. Traditionally the OGJ has been assessed using manometry with lower oesophageal sphincter pressure as the indicator. More recently this has been shown not to be a very reliable marke...

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Bibliographic Details
Published in:World journal of gastroenterology : WJG 2006-05, Vol.12 (18), p.2818-2824
Main Authors: McMahon, Barry P, Drewes, Asbjørn M, Gregersen, Hans
Format: Article
Language:English
Subjects:
Biomechanical Phenomena
Diagnostic Imaging - instrumentation
Diagnostic Imaging - methods
Electric Impedance
Esophageal Achalasia - pathology
Esophageal Achalasia - physiopathology
Esophagogastric Junction - innervation
Esophagogastric Junction - pathology
Esophagogastric Junction - physiology
Fluoroscopy - methods
Gastroesophageal Reflux - pathology
Gastroesophageal Reflux - physiopathology
Humans
Manometry
Pressure
Topic Highlight
功能性消化不良
照影诊断
胃疾病
食管括约肌
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Summary:Despite its role in disease there is still no definitive method to assess oesophago-gastric junction competence （OGJ）. Traditionally the OGJ has been assessed using manometry with lower oesophageal sphincter pressure as the indicator. More recently this has been shown not to be a very reliable marker of sphincter function and competence against reflux. Disorders such as gastro-oesophageal reflux disease and to a lesser extend achalasia still effects a significant number of patients. This review looks at using a new technique known as impedance planimetry to profile the geometry and pressure in the OGJ during distension of a bag. The data gathered can be reconstructed into a dynamic representation of OGJ action. This has been shown to provide a useful representation of the OGJ and to show changes to the competence of the OGJ in terms of compliance and distensibility as a result of endoluminal therapy.
ISSN:1007-9327
2219-2840
DOI:10.3748/wjg.v12.i18.2818