title: Improvement of artery radii determination with single ultra sound channel hardware & in vitro artificial heart system.
abstract: In several clinical and experimental circumstances, it is widely necessary to characterize the bio-mechanical changes induced by atherosclerosis to the arterial wall. In this context, the purpose of this paper is twofold. Firstly, to propose a low cost ultrasound setup to improve artery radii determination in elasticity experiments, based on two transducers using a single channel ultrasound hardware. Secondly, to present an in vitro artificial heart system developed in our laboratory, which provides a wide range of hemodynamic parameters in arterial elasticity assessment experiments. It can be used in a liquid, stand alone mode or blowing air to a Jarvik device. This system will be integrated in future works with the proposed ultrasound setup to provide real time elasticity measurements.
authors.affiliation: Instituto de Fisica, Facultad de Ciencias, UdelaR, Montevideo, Uruguay. gbalay@fisica.edu.uy
authors.forename: G
authors.initials: G
authors.lastname: Balay
authors.forename: J
authors.initials: J
authors.lastname: Brum
authors.forename: D
authors.initials: D
authors.lastname: Bia
authors.forename: R L
authors.initials: RL
authors.lastname: Armentano
authors.forename: C A
authors.initials: CA
authors.lastname: Negreira
mesh_terms: D000465:Algorithms; D001158:Arteries / Q000000981:diagnostic imaging*; D001696:Biomechanical Phenomena; D002138:Calibration; D004452:Echocardiography / Q000379:methods; D004548:Elasticity; D054459:Elasticity Imaging Techniques / Q000379:methods; D004867:Equipment Design; D006354:Heart, Artificial; D006439:Hemodynamics; D006801:Humans; D007091:Image Processing, Computer-Assisted; D066298:In Vitro Techniques; D011312:Pressure; D014159:Transducers; D014463:Ultrasonography / Q000379:methods*