Authors
Julien Cohen‐Adad, A Mareyam, B Keil, JR Polimeni, LL Wald
Publication date
2011/10
Journal
Magnetic resonance in medicine
Volume
66
Issue
4
Pages
1198-1208
Publisher
Wiley Subscription Services, Inc., A Wiley Company
Description
Diffusion and functional magnetic resonance imaging of the spinal cord remain challenging due to the small cross‐sectional size of the cord and susceptibility‐related distortions. Although partially addressable through parallel imaging, few highly parallel array coils have been implemented for the cervical cord. Here, we developed a 32‐channel coil that fully covers the brain and c‐spine and characterized its performance in comparison with a commercially available head/neck/spine array. Image and temporal signal‐to‐noise ratio were, respectively, increased by 2× and 1.8× in the cervical cord. Averaged g‐factors at 4× acceleration were lowered by 22% in the brain and by 39% in the spinal cord, enabling 1‐mm isotropic R = 4 multi‐echo magnetization prepared gradient echo of the full brain and c‐spine in 3:20 min. Diffusion imaging of the cord at 0.6 × 0.6 × 5 mm3 resolution and tractography of the full brain and …
Total citations
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Scholar articles
J Cohen‐Adad, A Mareyam, B Keil, JR Polimeni… - Magnetic resonance in medicine, 2011