A novel Biomagnetic Instrumentation with four Magnetoresistive Sensors to Evaluate Gastric Motility

Author

Paixao, F.C. ; de Moraes, R. ; Stelzer, M. ; Cora, L.A. ; Americo, M.F. ; Andreis, U. ; Oliveira, R.B. ; Baffa, O. ; de A.Miranda, J.R.

Author_Institution

IBB - Univ. Estadual Paulista (UNESP), Botucatu

fYear

2007

fDate

22-26 Aug. 2007

Firstpage

2215

Lastpage

2218

Abstract

A novel instrumentation using anisotropic magnetoresistive (AMR) sensors associated with magnetic coils excitation was developed to evaluate gastrointestinal tract motility parameters. The susceptometer has four sensors that were used to measure the gastric activity contractions (GAC) in anaesthetized dogs, its performance was evaluated by manometry with good results.

Keywords

biomagnetism; biomechanics; biomedical equipment; coils; magnetic sensors; magnetoresistive devices; anisotropic magnetoresistive sensors; biomagnetic instrumentation; gastric activity contractions; gastric motility; gastrointestinal tract motility; magnetic coils; manometry; susceptometer; Anisotropic magnetoresistance; Biomagnetics; Biosensors; Coils; Dogs; Gastrointestinal tract; Instruments; Magnetic anisotropy; Magnetic sensors; Perpendicular magnetic anisotropy; Algorithms; Animals; Anisotropy; Biosensing Techniques; Digestion; Dogs; Electric Conductivity; Equipment Design; Female; Gastric Emptying; Gastrointestinal Motility; Magnetics; Manometry; Radiation, Ionizing;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2007. EMBS 2007. 29th Annual International Conference of the IEEE

Conference_Location

Lyon

ISSN

1557-170X

Print_ISBN

978-1-4244-0787-3

Type

conf

DOI

10.1109/IEMBS.2007.4352764

Filename

4352764