Publications de Florent Eggenschwiler

T1 mapping of the mouse brain following fractionated manganese administration using MP2RAGE

Florent Eggenschwiler, Nathalie Just, Carola Jaquelina del Carmen Romero, Luc Driencourt, Mario Gaetano Lepore, Olivier Benoit Thomas Reynaud

With the increasing development of transgenic mouse models of neurodegenerative diseases allowing improved understanding of the underlying mechanisms of these disorders, robust quantitative mapping techniques are also needed in rodents. MP2RAGE has shown g ...

Springer Heidelberg2017

3D T 2-weighted imaging at 7T using dynamic kT-points on single-transmit MRI systems

Rolf Gruetter, Florent Eggenschwiler, José Pedro Rebelo Ferreira Marques, Kieran O'Brien, Daniel Gallichan

OBJECTIVES: For turbo spin echo (TSE) sequences to be useful at ultra-high field, they should ideally employ an RF pulse train compensated for the B 1 + inhomogeneity. Previously, it was shown that a single kT-point pulse designed in the small tip-angle re ...

Springer Verlag2016

B1+-mapping and B1+ inhomogeneity correction at high field

Florent Eggenschwiler

Magnetic resonance images acquired at the highest strength of the main magnetic field B0 are of interest since they highly benefit from an increased signal to noise ratio. At ultra high field strengths (B0 > 7 Tesla) images with more contrast and higher re ...

EPFL2015

Improving T2 -weighted imaging at high field through the use of kT -points

Rolf Gruetter, Florent Eggenschwiler, José Pedro Rebelo Ferreira Marques, Kieran O'Brien

PURPOSE: At high magnetic field strengths (B0 >/= 3 T), the shorter radiofrequency wavelength produces an inhomogeneous distribution of the transmit magnetic field. This can lead to variable contrast across the brain which is particularly pronounced in T2 ...

Wiley-Blackwell2014

SA2RAGE: A new sequence for fast B(1) (+) -mapping

Rolf Gruetter, Florent Eggenschwiler, Tobias Kober, José Pedro Rebelo Ferreira Marques

At high magnetic field strengths (≥3T), the radiofrequency wavelength used in MRI is of the same order of magnitude of (or smaller than) the typical sample size, making transmit magnetic field (B 1+) inhomogeneities more prominent. Methods such as radiofre ...

Wiley2012

Mapping inversion efficiencies of adiabatic pulses at 7T

Rolf Gruetter, Florent Eggenschwiler, José Pedro Rebelo Ferreira Marques, Mayur Narsude

2011