Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Bastien Guérin"'
Autor:
Mathias Davids, Peter Dietz, Gudrun Ruyters, Manuela Roesler, Valerie Klein, Bastien Guérin, David A. Feinberg, Lawrence L. Wald
Publikováno v:
Magnetic Resonance in Medicine. 90:784-801
Autor:
Valerie Klein, Jaume Coll‐Font, Livia Vendramini, Donald Straney, Mathias Davids, Natalie G. Ferris, Lothar R. Schad, David E. Sosnovik, Christopher T. Nguyen, Lawrence L. Wald, Bastien Guérin
Publikováno v:
Magnetic Resonance in Medicine. 88:2242-2258
Powerful MRI gradient systems can surpass the International Electrotechnical Commission (IEC) 60601-2-33 limit for cardiac stimulation (CS), which was determined by simple electromagnetic simulations and electrode stimulation experiments. Only a few
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-14 (2017)
Abstract Rapid switching of applied magnetic fields in the kilohertz frequency range in the human body induces electric fields powerful enough to cause Peripheral Nerve Stimulation (PNS). PNS has become one of the main constraints on the use of high
Externí odkaz:
https://doaj.org/article/bf1d3c7dd0c24ca18a11cbe15bbb0753
Publikováno v:
Magnetic Resonance in Medicine. 88:1480-1483
Autor:
Bastien, Guérin, Jorge F, Villena, Athanasios G, Polimeridis, Elfar, Adalsteinsson, Luca, Daniel, Jacob K, White, Lawrence L, Wald
Publikováno v:
Magnetic resonance in medicine. 78(5)
We compute the ultimate signal-to-noise ratio (uSNR) and G-factor (uGF) in a realistic head model from 0.5 to 21 Tesla.We excite the head model and a uniform sphere with a large number of electric and magnetic dipoles placed at 3 cm from the object.
Publikováno v:
Magnetic resonance in medicine. 76(4)
To design short parallel transmission (pTx) pulses for excitation of arbitrary three-dimensional (3D) magnetization patterns.We propose a joint optimization of the pTx radiofrequency (RF) and gradient waveforms for excitation of arbitrary 3D magnetiz
Autor:
Zohaib, Mahmood, Patrick, McDaniel, Bastien, Guérin, Boris, Keil, Markus, Vester, Elfar, Adalsteinsson, Lawrence L, Wald, Luca, Daniel
Publikováno v:
Magnetic resonance in medicine. 76(1)
In a coupled parallel transmit (pTx) array, the power delivered to a channel is partially distributed to other channels because of coupling. This power is dissipated in circulators resulting in a significant reduction in power efficiency. In this stu
Autor:
Bastien, Guérin
Publikováno v:
Biophysique [physics.bio-ph]. Université Pierre et Marie Curie-Paris VI, 2010. Français
We developed and validated a fast Monte Carlo simulation of PET acquisitions based on the SimSET program modeling accurately the propagation of gamma photons in the patient as well as the block-based PET detector. Comparison of our simulation with an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::785053329499cf2ed18a56dfbe6a528a
https://tel.archives-ouvertes.fr/tel-00488904
https://tel.archives-ouvertes.fr/tel-00488904
Autor:
Benedikt A, Poser, Robert James, Anderson, Bastien, Guérin, Kawin, Setsompop, Weiran, Deng, Azma, Mareyam, Peter, Serano, Lawrence L, Wald, V Andrew, Stenger
Publikováno v:
Magnetic resonance in medicine. 71(4)
A technique is described for simultaneous multislice (SMS) excitation using radiofrequency (RF) parallel transmission (pTX).Spatially distinct slices are simultaneously excited by applying different RF frequencies on groups of elements of a multichan
Autor:
Bastien, Guérin
Nous avons développé une simulation de Monte Carlo rapide pour la tomographie à émission de positons (TEP) fondée sur le code SimSET modélisant la propagation des photons gammas dans le patient et le scanner basé sur un design en blocs. La val
Externí odkaz:
http://tel.archives-ouvertes.fr/tel-00488904
http://tel.archives-ouvertes.fr/docs/00/48/89/04/PDF/These_a4_final.pdf
http://tel.archives-ouvertes.fr/docs/00/48/89/04/PDF/These_a4_final.pdf