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View article: Simulation Validation of an 8-Channel Parallel-Transmit Dipole Array on an Infant Phantom: Including RF Losses for Robust Correlation with Experimental Results
Simulation Validation of an 8-Channel Parallel-Transmit Dipole Array on an Infant Phantom: Including RF Losses for Robust Correlation with Experimental Results Open
It is crucial to demonstrate a robust correlation between the simulated and manufactured parallel-transmit (pTx) arrays performances to release the currently-used, very restrictive safety margins. In this study, we describe the qualitative…
View article: Segmenting electroencephalography wires reduces radiofrequency shielding artifacts in simultaneous electroencephalography and functional magnetic resonance imaging at 7 T
Segmenting electroencephalography wires reduces radiofrequency shielding artifacts in simultaneous electroencephalography and functional magnetic resonance imaging at 7 T Open
Purpose Simultaneous scalp electroencephalography and functional magnetic resonance imaging (EEG‐fMRI) enable noninvasive assessment of brain function with high spatial and temporal resolution. However, at ultra‐high field, the data qualit…
View article: Evaluation of the whole auditory pathway using high-resolution and functional MRI at 7T parallel-transmit
Evaluation of the whole auditory pathway using high-resolution and functional MRI at 7T parallel-transmit Open
Purpose The aim of the present study is to show a MR procedure for the evaluation of simultaneous left and right auditory functions with functional MRI, and high-resolution acquisition of anatomical auditory pathway using parallel-transmit…
View article: A local multi‐transmit coil combined with a high‐density receive array for cerebellar fMRI at 7 T
A local multi‐transmit coil combined with a high‐density receive array for cerebellar fMRI at 7 T Open
The human cerebellum is involved in a wide array of functions, ranging from motor control to cognitive control, and as such is of great neuroscientific interest. However, its function is underexplored in vivo, due to its small size, its de…
View article: Brain NAD Is Associated With ATP Energy Production and Membrane Phospholipid Turnover in Humans
Brain NAD Is Associated With ATP Energy Production and Membrane Phospholipid Turnover in Humans Open
The brain requires a large amount of energy, mostly derived from the metabolism of glucose, which decreases substantially with age and neurological diseases. While mounting evidence in model organisms illustrates the central role of brain …
View article: A combined 32‐channel receive‐loops/8‐channel transmit‐dipoles coil array for whole‐brain MR imaging at 7T
A combined 32‐channel receive‐loops/8‐channel transmit‐dipoles coil array for whole‐brain MR imaging at 7T Open
Purpose Multichannel receive arrays provide high SNR and parallel‐imaging capabilities, while transmit‐only dipole arrays have been shown to achieve a large coverage of the whole‐brain including the cerebellum. The aim of this study was to…
View article: A human cerebral and cerebellar 8‐channel transceive RF dipole coil array at 7T
A human cerebral and cerebellar 8‐channel transceive RF dipole coil array at 7T Open
Purpose Dipole antennas that provide high transmit field penetration with large coverage, and their use in a parallel transmit setup, may be advantageous in minimizing B ‐field inhomogeneities at ultra‐high field, i.e 7T. We have developed…
View article: Nutritional Ketosis Increases NAD+/NADH Ratio in Healthy Human Brain: An in Vivo Study by 31P-MRS
Nutritional Ketosis Increases NAD+/NADH Ratio in Healthy Human Brain: An in Vivo Study by 31P-MRS Open
Ketones represent an important alternative fuel for the brain under glucose hypo-metabolic conditions induced by neurological diseases or aging, however their metabolic consequences in healthy brain remain unclear. Here we report that keto…
View article: Is Gd-DTPA Necessary in Clinical Practice for Peripheral Nerve Injury?
Is Gd-DTPA Necessary in Clinical Practice for Peripheral Nerve Injury? Open
We read with interest the article published in the American Journal of Neuroradiology by Hill et al[1][1] concerning the enhancement characteristics at 4.7T of the sciatic nerve of rats after injury. The purpose of this article was to prov…
View article: Clinical Neuroimaging Using 7 T MRI: Challenges and Prospects
Clinical Neuroimaging Using 7 T MRI: Challenges and Prospects Open
The aim of this article is to illustrate the principal challenges, from the medical and technical point of view, associated with the use of ultrahigh field (UHF) scanners in the clinical setting and to present available solutions to circum…