An Artificial Shield for MRI Birdcage Coil with Constructive Interference

K. Lezhennikova; A. Hurshkainen; M. Dubois; D. Berrahou; C. Simovski; A. Raaijmakers; P. Jomin; I. Melchakova; S. Enoch; R. Abdeddaim; S. Glybovski

doi:10.23919/EuCAP48036.2020.9135080

An Artificial Shield for MRI Birdcage Coil with Constructive Interference

K. Lezhennikova, A. Hurshkainen, M. Dubois, D. Berrahou, C. Simovski, A. Raaijmakers, P. Jomin, I. Melchakova, S. Enoch, R. Abdeddaim, S. Glybovski

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussa › Conference article in proceedings › Scientific › vertaisarvioitu

Abstrakti

In this contribution, an artificial shield for an MRI birdcage coil based on a cylindrical miniaturized corrugated structure is proposed. The presence of a conventional metallic shield around the birdcage resonator leads to a destructive interference of the primary magnetic field of the coil and the reflected field inside the coil (in the region of an investigated sample). At the same time, the fields constructively interfere in the region between the coil and the shield. As a result, the efficiency of the coil may be limited. The proposed artificial shield has a miniaturized corrugated structure, which demonstrates the property of a constructive interference inside the coil. It has been shown that the proposed structure placed around the birdcage coil can increase the efficiency at its resonance similarly to an ideal cylindrical magnetic wall of the same diameter.

Alkuperäiskieli	Englanti
Otsikko	14th European Conference on Antennas and Propagation, EuCAP 2020
Kustantaja	EurAAP
Sivumäärä	3
ISBN (elektroninen)	978-88-31299-00-8
DOI - pysyväislinkit	https://doi.org/10.23919/EuCAP48036.2020.9135080
Tila	Julkaistu - maalisk. 2020
OKM-julkaisutyyppi	A4 Artikkeli konferenssijulkaisussa
Tapahtuma	European Conference on Antennas and Propagation - Copenhagen, Tanska Kesto: 15 maalisk. 2020 → 20 maalisk. 2020 Konferenssinumero: 14

Julkaisusarja

Nimi	Proceedings of the European Conference on Antennas and Propagation
ISSN (painettu)	2164-3342

Conference

Conference	European Conference on Antennas and Propagation
Lyhennettä	EUCAP
Maa/Alue	Tanska
Kaupunki	Copenhagen
Ajanjakso	15/03/2020 → 20/03/2020

Pääsy asiakirjaan

10.23919/EuCAP48036.2020.9135080

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Link to publication in Scopus

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Lezhennikova, K., Hurshkainen, A., Dubois, M., Berrahou, D., Simovski, C., Raaijmakers, A., Jomin, P., Melchakova, I., Enoch, S., Abdeddaim, R., & Glybovski, S. (2020). An Artificial Shield for MRI Birdcage Coil with Constructive Interference. teoksessa 14th European Conference on Antennas and Propagation, EuCAP 2020 Artikkeli 9135080 (Proceedings of the European Conference on Antennas and Propagation). EurAAP. https://doi.org/10.23919/EuCAP48036.2020.9135080

@inproceedings{ec59385949b742e7a23f102305eda759,

title = "An Artificial Shield for MRI Birdcage Coil with Constructive Interference",

abstract = "In this contribution, an artificial shield for an MRI birdcage coil based on a cylindrical miniaturized corrugated structure is proposed. The presence of a conventional metallic shield around the birdcage resonator leads to a destructive interference of the primary magnetic field of the coil and the reflected field inside the coil (in the region of an investigated sample). At the same time, the fields constructively interfere in the region between the coil and the shield. As a result, the efficiency of the coil may be limited. The proposed artificial shield has a miniaturized corrugated structure, which demonstrates the property of a constructive interference inside the coil. It has been shown that the proposed structure placed around the birdcage coil can increase the efficiency at its resonance similarly to an ideal cylindrical magnetic wall of the same diameter.",

keywords = "magnetic resonance imaging, magnetic shield, Volume coil",

author = "K. Lezhennikova and A. Hurshkainen and M. Dubois and D. Berrahou and C. Simovski and A. Raaijmakers and P. Jomin and I. Melchakova and S. Enoch and R. Abdeddaim and S. Glybovski",

year = "2020",

month = mar,

doi = "10.23919/EuCAP48036.2020.9135080",

language = "English",

series = "Proceedings of the European Conference on Antennas and Propagation",

publisher = "EurAAP",

booktitle = "14th European Conference on Antennas and Propagation, EuCAP 2020",

address = "Belgium",

note = "European Conference on Antennas and Propagation, EUCAP ; Conference date: 15-03-2020 Through 20-03-2020",

}

Lezhennikova, K, Hurshkainen, A, Dubois, M, Berrahou, D, Simovski, C, Raaijmakers, A, Jomin, P, Melchakova, I, Enoch, S, Abdeddaim, R & Glybovski, S 2020, An Artificial Shield for MRI Birdcage Coil with Constructive Interference. julkaisussa 14th European Conference on Antennas and Propagation, EuCAP 2020., 9135080, Proceedings of the European Conference on Antennas and Propagation, EurAAP, European Conference on Antennas and Propagation, Copenhagen, Tanska, 15/03/2020. https://doi.org/10.23919/EuCAP48036.2020.9135080

An Artificial Shield for MRI Birdcage Coil with Constructive Interference. / Lezhennikova, K.; Hurshkainen, A.; Dubois, M. et al.
14th European Conference on Antennas and Propagation, EuCAP 2020. EurAAP, 2020. 9135080 (Proceedings of the European Conference on Antennas and Propagation).

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussa › Conference article in proceedings › Scientific › vertaisarvioitu

TY - GEN

T1 - An Artificial Shield for MRI Birdcage Coil with Constructive Interference

AU - Lezhennikova, K.

AU - Hurshkainen, A.

AU - Dubois, M.

AU - Berrahou, D.

AU - Simovski, C.

AU - Raaijmakers, A.

AU - Jomin, P.

AU - Melchakova, I.

AU - Enoch, S.

AU - Abdeddaim, R.

AU - Glybovski, S.

N1 - Conference code: 14

PY - 2020/3

Y1 - 2020/3

N2 - In this contribution, an artificial shield for an MRI birdcage coil based on a cylindrical miniaturized corrugated structure is proposed. The presence of a conventional metallic shield around the birdcage resonator leads to a destructive interference of the primary magnetic field of the coil and the reflected field inside the coil (in the region of an investigated sample). At the same time, the fields constructively interfere in the region between the coil and the shield. As a result, the efficiency of the coil may be limited. The proposed artificial shield has a miniaturized corrugated structure, which demonstrates the property of a constructive interference inside the coil. It has been shown that the proposed structure placed around the birdcage coil can increase the efficiency at its resonance similarly to an ideal cylindrical magnetic wall of the same diameter.

AB - In this contribution, an artificial shield for an MRI birdcage coil based on a cylindrical miniaturized corrugated structure is proposed. The presence of a conventional metallic shield around the birdcage resonator leads to a destructive interference of the primary magnetic field of the coil and the reflected field inside the coil (in the region of an investigated sample). At the same time, the fields constructively interfere in the region between the coil and the shield. As a result, the efficiency of the coil may be limited. The proposed artificial shield has a miniaturized corrugated structure, which demonstrates the property of a constructive interference inside the coil. It has been shown that the proposed structure placed around the birdcage coil can increase the efficiency at its resonance similarly to an ideal cylindrical magnetic wall of the same diameter.

KW - magnetic resonance imaging

KW - magnetic shield

KW - Volume coil

UR - http://www.scopus.com/inward/record.url?scp=85088655305&partnerID=8YFLogxK

U2 - 10.23919/EuCAP48036.2020.9135080

DO - 10.23919/EuCAP48036.2020.9135080

M3 - Conference article in proceedings

AN - SCOPUS:85088655305

T3 - Proceedings of the European Conference on Antennas and Propagation

BT - 14th European Conference on Antennas and Propagation, EuCAP 2020

PB - EurAAP

T2 - European Conference on Antennas and Propagation

Y2 - 15 March 2020 through 20 March 2020

ER -

An Artificial Shield for MRI Birdcage Coil with Constructive Interference

Abstrakti

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