Evaluation of a magnetic method for the measurement of small intestinal transit time

A new method for the measurement of small intestinal transit time is described. An externally applied magnetic transducer senses the presence of an ingested ferromagnetic material--50 gm. of magnesium ferrite dispersed in a test meal--upon its arrival at the cecal area. The mouth-to-cecum transit ti...

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Bibliographic Details
Published inThe American journal of gastroenterology Vol. 68; no. 5; p. 470
Main Authors Benmair, Y, Fischel, B, Frei, E H, Gilat, T
Format Journal Article
LanguageEnglish
Published United States 01.11.1977
Subjects
Adult
Aged
Cecum - diagnostic imaging
Cecum - metabolism
Gastrointestinal Motility
Humans
Intestine, Small - physiology
Magnetics
Methods
Middle Aged
Radiography
Time Factors
Transducers
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Summary:A new method for the measurement of small intestinal transit time is described. An externally applied magnetic transducer senses the presence of an ingested ferromagnetic material--50 gm. of magnesium ferrite dispersed in a test meal--upon its arrival at the cecal area. The mouth-to-cecum transit time is thus determined. The method is noninvasive and is not associated with any radiation. The method was compared to the commonly used x-ray method and good correlation was found in 24 of 28 studies. The mean transit time in a group of 20 normal subjects was 157.5 +/- 63.9 min.
ISSN:0002-9270
DOI:10.1111/j.1572-0241.1977.tb10012.x