A novel biomagnetic instrumentation with four magnetoresistive sensors to evaluate gastric motility.
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.
Paixão
Fabiano C
FC
Departamento de Física e Biofísica, IBB - Universidade Estadual Paulista, Distrito de Rubião Júnior, S/N, 18.618-000, Botucatu-SP, Brazil.
de Moraes
Rogério
R
Stelzer
Murilo
M
Corá
Luciana A
LA
Américo
Madileine F
MF
Andreis
Uilian
U
Oliveira
Ricardo B
RB
Baffa
Oswaldo
O
de A Miranda
José R
JR
D000465:Algorithms; D000818:Animals; D016880:Anisotropy; D015374:Biosensing Techniques; D004063:Digestion; D004285:Dogs; D004553:Electric Conductivity; D004867:Equipment Design; D005260:Female; D005746:Gastric Emptying; D005769:Gastrointestinal Motility; D008280:Magnetics; D008365:Manometry / Q000295:instrumentation / Q000379:methods; D011839:Radiation, Ionizing