title: Modular architecture of a multi-frequency electrical impedance tomography system: design and implementation.
abstract: Electrical impedance tomography (EIT) provides means of imaging the electrical properties distribution of biological tissues and fluids while impedance spectroscopy (IS) allows measuring their frequency response in a more global way. Both require precise and well-integrated instrumentation. In this work, we propose a modular architecture of a multi-frequency EIT (MfEIT) system which has capabilities in implementing both IS and MfEIT. First, IS performance is assessed in vivo using a cuff electrode implanted around the rodent cervical vagus nerve. Second, MfEIT performance is evaluated in vitro based on saline phantom experiments. Overall system allows addressing a wide range of applications and proves effective both in vitro and in vivo.
authors.forename: Alexandre
authors.initials: A
authors.lastname: Fouchard
authors.forename: Alain
authors.initials: A
authors.lastname: Noca
authors.forename: Stéphane
authors.initials: S
authors.lastname: Bonnet
authors.forename: Pascale
authors.initials: P
authors.lastname: Pham
authors.forename: Valérie
authors.initials: V
authors.lastname: Sinniger
authors.forename: Didier
authors.initials: D
authors.lastname: Clarençon
authors.forename: Olivier
authors.initials: O
authors.lastname: David
mesh_terms: D000818:Animals; D017097:Electric Impedance; D004558:Electric Stimulation; D004567:Electrodes, Implanted; D004867:Equipment Design; D006801:Humans; D019047:Phantoms, Imaging; D012965:Sodium Chloride / Q000737:chemistry; D014054:Tomography / Q000295:instrumentation* / Q000379:methods; D014630:Vagus Nerve / Q000502:physiology
chemical_list: D012965:Sodium Chloride