Zobrazeno 1 - 10
of 235
pro vyhledávání: '"C. A. T. van den Berg"'
Autor:
B R, Steensma, A, Sadeghi-Tarakameh, E F, Meliado, C A T, van den Berg, D W J, Klomp, P R, Luijten, G J, Metzger, Y, Eryaman, A J E, Raaijmakers
Publikováno v:
NMR in biomedicine.
The purpose of this work is to propose a tier-based formalism for safety assessment of custom-built RF coils that balances validation effort with the determination of more or less conservative safety factors. The formalism has 3 tier levels. Higher t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::168748426ff19bceb01088d5789e8bf2
https://pubmed.ncbi.nlm.nih.gov/36368912
https://pubmed.ncbi.nlm.nih.gov/36368912
Autor:
R. F. Remis, A. Webb, S. Mandija, R. L. Leijsen, P. S. Fuchs, P. R. S. Stijnman, C. A. T. van den Berg
Publikováno v:
2017 International Conference on Electromagnetics in Advanced Applications (ICEAA).
In this paper, we present an Electrical Properties Tomography (EPT) methodology based on integral (Green's tensor) representations for the electromagnetic field. Inhomogeneous tissue profiles can easily be incorporated in such an approach and the rec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98ad48eb972abc7a8c50125fcdcc9602
https://doi.org/10.1109/iceaa.2017.8065434
https://doi.org/10.1109/iceaa.2017.8065434
Autor:
A, Andreychenko, B, Denis de Senneville, R J M, Navest, R H N, Tijssen, J J W, Lagendijk, C A T, van den Berg
Publikováno v:
Magnetic resonance in medicine. 79(3)
Tracking of the internal anatomy by means of a motion model that uses the MR-derived motion fields and noise covariance matrix (NCM) dynamic as a surrogate signal.A 2D respiratory motion model was developed based on the MR-derived motion fields and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::51385635b816a21f1f5adef0e23b37de
https://pubmed.ncbi.nlm.nih.gov/28593709
https://pubmed.ncbi.nlm.nih.gov/28593709
Publikováno v:
Magnetic resonance in medicine. 78(6)
We introduce a new MR-based method to determine the transfer function (TF) for radiofrequency (RF) safety assessment of active implantable medical devices. Transfer functions are implant-specific measures that relate the incident tangential electric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::b3dbe769676525103cd4ae9b36c76b1e
https://pubmed.ncbi.nlm.nih.gov/28164362
https://pubmed.ncbi.nlm.nih.gov/28164362
Autor:
E, Balidemaj, P, de Boer, A L H M W, van Lier, R F, Remis, L J A, Stalpers, G H, Westerveld, A J, Nederveen, C A T, van den Berg, J, Crezee
Publikováno v:
Physics in medicine and biology. 61(4)
The in vivo electric conductivity (σ) values of tissue are essential for accurate electromagnetic simulations and specific absorption rate (SAR) assessment for applications such as thermal dose computations in hyperthermia. Currently used σ-values
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::801a62086d1e4c9fead27fdecc9fe09f
https://pubmed.ncbi.nlm.nih.gov/26836010
https://pubmed.ncbi.nlm.nih.gov/26836010
Publikováno v:
Magnetic resonance in medicine. 77(4)
Ongoing discussions occur to translate the safety restrictions on MR scanners from specific absorption rate (SAR) to thermal dose. Therefore, this research focuses on the accuracy of thermal simulations in human subjects during an MR exam, which is f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::a657fa14d307463401ce8541722c3de3
https://pubmed.ncbi.nlm.nih.gov/27120403
https://pubmed.ncbi.nlm.nih.gov/27120403
Publikováno v:
NMR in biomedicine. 29(9)
Although the potential of dipole antennas for ultrahigh-field (UHF) MRI is largely recognized, they are still relatively unknown to the larger part of the MRI community. This article intends to provide electromagnetic insight into the general operati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::391ae976403318cdbdebf911011f19d0
https://pubmed.ncbi.nlm.nih.gov/26278544
https://pubmed.ncbi.nlm.nih.gov/26278544
Publikováno v:
Medical physics. 40(10)
Accurate thermal simulations in hyperthermia treatment planning require discrete modeling of large blood vessels. The very long computation time of the finite difference based DIscrete VAsculature model (DIVA) developed for this purpose is impractica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::ebd6ae4de90b64d6ec660251913a0779
https://pubmed.ncbi.nlm.nih.gov/24089933
https://pubmed.ncbi.nlm.nih.gov/24089933
Publikováno v:
Magnetic resonance in medicine. 71(4)
Magnetic resonance imaging of humans at high magnetic field strengths is strongly influenced by the interference of the radiofrequency (RF) electromagnetic field and the body. To minimize this effect, multiple RF sources could be used. A novel setup
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::6af5fd88f311657882635df98ef64dde
https://pubmed.ncbi.nlm.nih.gov/23788130
https://pubmed.ncbi.nlm.nih.gov/23788130
Improved RF performance of travelling wave MR with a high permittivity dielectric lining of the bore
Autor:
A, Andreychenko, J J, Bluemink, A J E, Raaijmakers, J J W, Lagendijk, P R, Luijten, C A T, van den Berg
Publikováno v:
Magnetic resonance in medicine. 70(3)
Application of travelling wave MR to human body imaging is restricted by the limited peak power of the available RF amplifiers. Nevertheless, travelling wave MR advantages like a large field of view excitation and distant location of transmit element
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::deca840284029c7be55fd9d0a48e3e83
https://pubmed.ncbi.nlm.nih.gov/23044511
https://pubmed.ncbi.nlm.nih.gov/23044511