Custom, spray coated receive coils for magnetic resonance imaging

Abstract We have developed a process for fabricating patient specific Magnetic Resonance Imaging (MRI) Radio-frequency (RF) receive coil arrays using additive manufacturing. Our process involves spray deposition of silver nanoparticle inks and dielectric materials onto 3D printed substrates to form...

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Autores principales:	A. M. Zamarayeva, K. Gopalan, J. R. Corea, M. Z. Liu, K. Pang, M. Lustig, A. C. Arias
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d946754185d24c20a6a9e88586033094
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spelling	oai:doaj.org-article:d946754185d24c20a6a9e885860330942021-12-02T13:57:25ZCustom, spray coated receive coils for magnetic resonance imaging10.1038/s41598-021-81833-02045-2322https://doaj.org/article/d946754185d24c20a6a9e885860330942021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81833-0https://doaj.org/toc/2045-2322Abstract We have developed a process for fabricating patient specific Magnetic Resonance Imaging (MRI) Radio-frequency (RF) receive coil arrays using additive manufacturing. Our process involves spray deposition of silver nanoparticle inks and dielectric materials onto 3D printed substrates to form high-quality resonant circuits. In this paper, we describe the material selection and characterization, process optimization, and design and testing of a prototype 4-channel neck array for carotid imaging. We show that sprayed polystyrene can form a low loss dielectric layer in a parallel plate capacitor. We also demonstrate that by using sprayed silver nanoparticle ink as conductive traces, our devices are still dominated by sample noise, rather than material losses. These results are critical for maintaining high Signal-to-Noise-Ratio (SNR) in clinical settings. Finally, our prototype patient specific coil array exhibits higher SNR (5 × in the periphery, 1.4 × in the center) than a commercially available array designed to fit the majority of subjects when tested on our custom neck phantom. 3D printed substrates ensure an optimum fit to complex body parts, improve diagnostic image quality, and enable reproducible placement on subjects.A. M. ZamarayevaK. GopalanJ. R. CoreaM. Z. LiuK. PangM. LustigA. C. AriasNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q A. M. Zamarayeva K. Gopalan J. R. Corea M. Z. Liu K. Pang M. Lustig A. C. Arias Custom, spray coated receive coils for magnetic resonance imaging
description	Abstract We have developed a process for fabricating patient specific Magnetic Resonance Imaging (MRI) Radio-frequency (RF) receive coil arrays using additive manufacturing. Our process involves spray deposition of silver nanoparticle inks and dielectric materials onto 3D printed substrates to form high-quality resonant circuits. In this paper, we describe the material selection and characterization, process optimization, and design and testing of a prototype 4-channel neck array for carotid imaging. We show that sprayed polystyrene can form a low loss dielectric layer in a parallel plate capacitor. We also demonstrate that by using sprayed silver nanoparticle ink as conductive traces, our devices are still dominated by sample noise, rather than material losses. These results are critical for maintaining high Signal-to-Noise-Ratio (SNR) in clinical settings. Finally, our prototype patient specific coil array exhibits higher SNR (5 × in the periphery, 1.4 × in the center) than a commercially available array designed to fit the majority of subjects when tested on our custom neck phantom. 3D printed substrates ensure an optimum fit to complex body parts, improve diagnostic image quality, and enable reproducible placement on subjects.
format	article
author	A. M. Zamarayeva K. Gopalan J. R. Corea M. Z. Liu K. Pang M. Lustig A. C. Arias
author_facet	A. M. Zamarayeva K. Gopalan J. R. Corea M. Z. Liu K. Pang M. Lustig A. C. Arias
author_sort	A. M. Zamarayeva
title	Custom, spray coated receive coils for magnetic resonance imaging
title_short	Custom, spray coated receive coils for magnetic resonance imaging
title_full	Custom, spray coated receive coils for magnetic resonance imaging
title_fullStr	Custom, spray coated receive coils for magnetic resonance imaging
title_full_unstemmed	Custom, spray coated receive coils for magnetic resonance imaging
title_sort	custom, spray coated receive coils for magnetic resonance imaging
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/d946754185d24c20a6a9e88586033094
work_keys_str_mv	AT amzamarayeva customspraycoatedreceivecoilsformagneticresonanceimaging AT kgopalan customspraycoatedreceivecoilsformagneticresonanceimaging AT jrcorea customspraycoatedreceivecoilsformagneticresonanceimaging AT mzliu customspraycoatedreceivecoilsformagneticresonanceimaging AT kpang customspraycoatedreceivecoilsformagneticresonanceimaging AT mlustig customspraycoatedreceivecoilsformagneticresonanceimaging AT acarias customspraycoatedreceivecoilsformagneticresonanceimaging
_version_	1718392350530600960

Custom, spray coated receive coils for magnetic resonance imaging

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