A novel device with 36 channels for imaging and signal acquisition of the gastrointestinal tract based on AC biosusceptometry

dc.contributorPontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniversidade de São Paulo (USP)
dc.date.accessioned2014-05-27T11:25:19Z
dc.date.accessioned2022-10-05T18:23:51Z
dc.date.available2014-05-27T11:25:19Z
dc.date.available2022-10-05T18:23:51Z
dc.date.created2014-05-27T11:25:19Z
dc.date.issued2010-12-01
dc.identifier2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10, p. 6457-6460.
dc.identifierhttp://hdl.handle.net/11449/72040
dc.identifier10.1109/IEMBS.2010.5627341
dc.identifier2-s2.0-78650808294
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3921144
dc.description.abstractThe alternate current biosusceptometry (ACB) is a biomagnetic technique used to study some physiological parameters associated with gastrointestinal (GI) tract. For this purpose it applies an AC magnetic field and measures the response originating from magnetic marks or tracers. This paper presents an equipment based on the ACB which uses anisotropic magnetoresistive (AMR) sensors and an inexpensive electronic support. The ACB-AMR developed consists of a square array of 6x6 sensors arranged in a firstorder gradiometer configuration with one reference sensor. The equipment was applied to capture magnetic images of different phantoms and to acquire gastric contraction activity of healthy rats. The results show a reasonable sensitivity and spatial-temporal resolution, so that it may be applied for imaging of phantoms and signal acquisition of the GI tract of small animals. © 2010 IEEE.
dc.languageeng
dc.relation2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10
dc.rightsAcesso aberto
dc.sourceScopus
dc.subjectAC magnetic fields
dc.subjectAlternate current biosusceptometry
dc.subjectAnisotropic magnetoresistive sensors
dc.subjectBiosusceptometry
dc.subjectElectronic support
dc.subjectFirst-order
dc.subjectGastrointestinal tract
dc.subjectGI tract
dc.subjectGradiometers
dc.subjectMagnetic images
dc.subjectNovel devices
dc.subjectPhysiological parameters
dc.subjectReference sensors
dc.subjectSignal acquisitions
dc.subjectSmall Animal
dc.subjectSpatial temporals
dc.subjectSquare array
dc.subjectAnimals
dc.subjectMagnetic fields
dc.subjectPhysiological models
dc.subjectSensors
dc.subjectSignal analysis
dc.subjectSignal processing
dc.titleA novel device with 36 channels for imaging and signal acquisition of the gastrointestinal tract based on AC biosusceptometry
dc.typeTrabalho apresentado em evento


Este ítem pertenece a la siguiente institución