A biomagnetic assessment of colonic electrical activity in pigs.

A biomagnetic assessment of colonic electrical activity in pigs. Research Abstract Details 

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A biomagnetic assessment of colonic electrical activity in pigs. Abstract Text:

T Cordova-Fraga,M Gallucci,A Bradshaw,B Berch,W O Richards,

The electrical control activity of the large intestine was recorded in six pigs using a SQUID magnetometer. The study was performed in pre- and post-colectomy/sham-colectomy conditions. The biomagnetic field associated with colonic ECA changed drastically in subjects that underwent the colectomy procedure, whereas the signal for the control animals was nearly unchanged. Power spectral analysis was used to determine the average changes of dominant frequency and amplitude between baseline versus colectomy and sham-colectomy conditions. The dominant frequency was increased by 68 +/- 24% (versus 2 +/- 3% in control). The amplitude was decreased by 69 +/- 24% (versus 13 +/- 17% in control). This is the first study of transabdominal magnetic fields associated with colonic ECA, suggests some of the side effects generated in colectomy surgery and shows the utility of the biomagnetic technique in studies of the large intestine.

A biomagnetic assessment of colonic electrical activity in pigs. Publishing Authors By Initials

T Cordova-Fraga,M Gallucci,A Bradshaw,B Berch,WO Richards,

For similar animals: chordata: vertebrates: mammals: artiodactyla: swine research abstracts see: animals: chordata: vertebrates: mammals: artiodactyla: swine research

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A biomagnetic assessment of colonic electrical activity in pigs. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: Physiological measurement

VOLUME: 28

Page Numbers: 41-8

Journal Abbreviation:

ISSN: 0967-3334

DAY: 17

MONTH: 11

YEAR: 2006

A biomagnetic assessment of colonic electrical activity in pigs. Information

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LANGUAGE: eng

NlmUniqueID: 9306921

A biomagnetic assessment of colonic electrical activity in pigs. Keywords Mesh Terms:

KEYWORDS: Swine

MESH TERMS: physiology

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Grant and Affiliation Information for A biomagnetic assessment of colonic electrical activity in pigs.

AFFILIATION: Department of Surgery, Vanderbilt University, Nashville, TN 37232, USA.

Country: England

AGENCY: United States NIDDK

GRANT: DK58697–01

ACRONYM: DK

MEDLINETA: Physiol Meas

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