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Open AccessArticle

MRI Compatible Planar Material Acoustic Lenses

1
Centro de Tecnologías Físicas, Universitat Politècnica de València, Camí de Vera s/n, 46022 València, Spain
2
Hospital Francesc de Borja, 46702 Gandia, València, Spain
*
Author to whom correspondence should be addressed.
Appl. Sci. 2018, 8(12), 2634; https://doi.org/10.3390/app8122634
Received: 10 October 2018 / Revised: 11 December 2018 / Accepted: 13 December 2018 / Published: 15 December 2018
(This article belongs to the Special Issue Modelling, Simulation and Data Analysis in Acoustical Problems)
Zone plate lenses are used in many areas of physics where planar geometry is advantageous in comparison with conventional curved lenses. There are several types of zone plate lenses, such as the well-known Fresnel zone plates (FZPs) or the more recent fractal and Fibonacci zone plates. The selection of the lens material plays a very important role in beam modulation control. This work presents a comparison between FZPs made from different materials in the ultrasonic range in order to use them as magnetic resonance imaging (MRI) compatible materials. Three different MRI compatible polymers are considered: Acrylonitrile butadiene styrene (ABS), polymethyl methacrylate (PMMA) and polylactic acid (PLA). Numerical simulations based on finite elements method (FEM) and experimental results are shown. The focusing capabilities of brass lenses and polymer zone plate lenses are compared. View Full-Text
Keywords: MRI; Zone Plates; ultrasonic lenses MRI; Zone Plates; ultrasonic lenses
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Tarrazó-Serrano, D.; Castiñeira-Ibáñez, S.; Sánchez-Aparisi, E.; Uris, A.; Rubio, C. MRI Compatible Planar Material Acoustic Lenses. Appl. Sci. 2018, 8, 2634.

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