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Erschienen in:
New Advances in Gastrointestinal Motility Research Kapitel lesen Erstes Kapitel lesen

2013 | OriginalPaper | Buchkapitel

Biomagnetic Signatures of Gastrointestinal Electrical Activity

verfasst von : L. Alan Bradshaw, Juliana Kim, Leo Cheng, William Richards

Erschienen in: New Advances in Gastrointestinal Motility Research

Verlag: Springer Netherlands

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Abstract

Current flow in the cellular syncytium of the gastrointestinal tract results in measurable magnetic fields as well as the more commonly measured electrical potentials. While electrogastrography allows assessment of slow wave frequency dynamics, physical limitations introduced by abdominal volume conduction present situations in which magnetic field measurement may prove advantageous. For the gastric slow wave, spatiotemporal characteristics associated with propagation may be more easily ascertain magnetically. In the intestine, smaller signal strength coupled with the conductivity profile of the abdomen make the biomagnetic approach attractive. In this chapter, we present the historical and theoretical background of recording biomagnetic fields, explore how electrical activity in the stomach and small bowel are reflected in extracorporeal magnetic measurements and how mathematical modeling is helping to elucidate the sophisticated relationships between gastrointestinal physiology and external potentials and magnetic fields.

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Vorheriges Kapitel Gastric Electrical Stimulation: Twentieth Century Development to Twenty-First Century Implementation and Personalization of Programming
Nächstes Kapitel Modelling Tissue Electrophysiology in the GI Tract: Past, Present and Future
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Metadaten
Titel
Biomagnetic Signatures of Gastrointestinal Electrical Activity
verfasst von
L. Alan Bradshaw
Juliana Kim
Leo Cheng
William Richards
Copyright-Jahr
2013
Verlag
Springer Netherlands
Buch
New Advances in Gastrointestinal Motility Research

Print ISBN: 978-94-007-6560-3

Electronic ISBN: 978-94-007-6561-0

Copyright-Jahr: 2013

DOI
https://doi.org/10.1007/978-94-007-6561-0_9

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