| Evaluation of human postprandial antral motor function using ultrasound. | |
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MedLine Citation:
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PMID: 8166289 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We used high-resolution ultrasound to characterize postprandial antral excursion characteristics in 15 healthy volunteers. Antral circumference was repeatedly measured in the sagittal plane anterior to the abdominal aorta, at 15-min intervals following ingestion of a standard meal. At each recording period, the maximal and minimal antral circumference was noted. In seven volunteers, antral circumference was studied continuously for 5 min at each 15-min recording period to assess the frequency and regularity of antral excursions. Antral circumference increased immediately after meal ingestion from preprandial values of 64 +/- 2.6 (means +/- SE) to 138 +/- 3.1 mm and then gradually decreased with meal emptying to 72 +/- 2.6 mm at 90 min. The continuous recordings of antral images revealed that antral circumference transiently decreased at regular intervals; the interval between successive excursions was 20.1 +/- 0.2 s. There was no change in the excursion interval with emptying. The excursion amplitude decreased from 33 +/- 3.9 mm immediately post-meal ingestion to 13 +/- 1.5 mm at 90 min (r2 = 0.62 +/- 0.07). The ratio between the excursion amplitude and circumference of the relaxed antrum changed only slightly with time (slope = 0.0009 +/- 0.00003). Comparison of repeat studies in 10 volunteers showed a low intra-individual variation for postprandial antral circumference and excursion amplitude. |
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Authors:
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N K Ahluwalia; D G Thompson; H Mamtora; L Troncon; J Hindle; S Hollis |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The American journal of physiology Volume: 266 ISSN: 0002-9513 ISO Abbreviation: Am. J. Physiol. Publication Date: 1994 Mar |
Date Detail:
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Created Date: 1994-05-20 Completed Date: 1994-05-20 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0370511 Medline TA: Am J Physiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: G517-22 Citation Subset: IM |
Affiliation:
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Department of Medicine, University of Manchester Medical School, Hope Hospital, United Kingdom. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Eating* Female Humans Male Muscle Contraction* Observer Variation Pyloric Antrum / physiology*, ultrasonography* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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