Aurélien Massire
Aix-Marseille University
41 Papers
93 Citations
Aurélien Massire is an academic researcher from Aix-Marseille University. The author has contributed to research in topics: Medicine & Computer science. The author has an hindex of 8, co-authored 16 publications. Previous affiliations of Aurélien Massire include IBM.
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Papers
On Variant Strategies to Solve the Magnitude Least Squares Optimization Problem in Parallel Transmission Pulse Design and Under Strict SAR and Power Constraints
TL;DR: Various two-stage strategies consisting of different initializations and nonlinear programming approaches are investigated, and these incorporate directly the strict SAR and hardware constraints, allowing the use of the proposed approach in routine.
Thermal simulations in the human head for high field MRI using parallel transmission
Aurélien Massire,Martjin A. Cloos,Martjin A. Cloos,Michel Luong,Alexis Amadon,Alexandre Vignaud,Christopher Wiggins,Nicolas Boulant +7 more
TL;DR: To investigate, via numerical simulations, the compliance of the specific absorption rate (SAR) versus temperature guidelines for the human head in magnetic resonance imaging procedures utilizing parallel transmission at high field.
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Parallel‐transmission‐enabled three‐dimensional T2‐weighted imaging of the human brain at 7 Tesla
Aurélien Massire,Alexandre Vignaud,Benjamin Robert,Denis Le Bihan,Nicolas Boulant,Alexis Amadon +5 more
TL;DR: It is demonstrated that the adopted formalism based on optimal control, combined with the kT‐point method, successfully enables three‐dimensional T2‐weighted brain imaging at 7T devoid of artifacts resulting from B1+ inhomogeneity.
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Design of non-selective refocusing pulses with phase-free rotation axis by gradient ascent pulse engineering algorithm in parallel transmission at 7T.
Aurélien Massire,Martijn A. Cloos,Alexandre Vignaud,Denis Le Bihan,Alexis Amadon,Nicolas Boulant +5 more
TL;DR: This work explores the potential of gradient ascent pulse engineering to design non-selective spin-echo refocusing pulses that simultaneously mitigate severe B1 and ΔB0 non-uniformities at ultra-high magnetic field.
26
Feasibility of single-shot multi-level multi-angle diffusion tensor imaging of the human cervical spinal cord at 7T.
Aurélien Massire,Henitsoa Rasoanandrianina,Manuel Taso,Manuel Taso,Maxime Guye,Jean-Philippe Ranjeva,Thorsten Feiweier,Virginie Callot +7 more
TL;DR: Diffusion tensor imaging (DTI), which is frequently used to characterize microstructure impairments in many spinal cord diseases at clinical fields, may benefit from 7T investigations, yet it presents specific technical challenges, such as increased magnetic susceptibility‐induced image distortions.