Implantable wireless microcoils for 7Tesla Magnetic Resonance Imaging of the rat brain: Optimization of the PDMS packaging

Author

Couty, Magdalèna ; Rubin, Anne ; Woytasik, Marion ; Ginefri, Jean-Christophe ; Darrasse, Luc ; Boumezbeur, Fawzi ; Lethimonnier, Franck ; Tatoulian, Michael ; Dufour-Gergam, Elisabeth

Author_Institution

Lab. IEF, Univ. Paris-Sud, Orsay, France

fYear

2012

Firstpage

37

Lastpage

40

Abstract

In this paper, we present the development of implantable microcoils specifically dedicated to 7Tesla MRI of the rat brain for the diagnosis and monitoring of tumors and neurodegenerative diseases. These coils are flexible and wireless, with an easy batch fabrication. We also present for the first time a study of the packaging effects on the characteristics of the coil, f₀ and Q factor. The optimization of the packaging with PDMS allows us to realize the first in vivo image of the rat brain using an implanted flexible microantenna.

Keywords

antennas; batch processing (industrial); biomedical MRI; brain; coils; diseases; electronics packaging; microfabrication; neurophysiology; PDMS packaging; Q factor; batch fabrication; implantable wireless microcoils; magnetic flux density 7 T; magnetic resonance imaging; neurodegenerative diseases; optimization; rat brain; tumors; Coils; Fabrication; In vivo; Magnetic resonance imaging; Packaging; Phantoms; Q factor; Implantable biomedical device; Magnetic resonance imaging; microstrip antenna arrays;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS), 2012 IEEE Topical Conference on

Conference_Location

Santa Clara, CA

Print_ISBN

978-1-4577-1135-0

Type

conf

DOI

10.1109/BioWireless.2012.6172728

Filename

6172728