Abstract #1605

A Birdcage Volume Transmit coil and 8 Channel Receive Array for Marmoset Brain Imaging at 7T

Pedram Yazdanbakhsh^1,2, Marcus Couch^1,3, Maeva Gacoin², Tyler Cook^2,4, David A. Rudko^2,5,6, and Justine Clery^2,5,7

¹McConnell Brain Imaging Centre, Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, Canada, ²Department of Neurology and Neurosurgery, McGill University, Montreal, QC, Canada, ³Siemens Healthcare Limited, Montreal, QC, Canada, ⁴Integrated Program in Neuroscience, McGill University, Montreal, QC, Canada, ⁵McConnell Brain Imaging Centre, Montreal Neurological Institute and Hospital, Montreal, QC, Canada, ⁶Department of Biomedical Engineering, McGill University, Montreal, QC, Canada, ⁷Azrieli Centre for Autism Research, The Neuro, Montreal, QC, Canada

Synopsis

Keywords: RF Arrays & Systems, Animals, Marmoset, High Field MRI, 7T

Motivation: 7T promises a high SNR for high-resolution imaging of the small marmoset brain, which requires a custom RF coil.

Goal(s): To develop a robust marmoset coil for 7T with an efficient volume transmit and receive array with a very high density and high filling factor.

Approach: The coil was constructed, consisting of a volume transmit coil and receive array of 8 receive-only loops. The coil was tested with a phantom and a single anesthetized marmoset.

Results: The transmit coil along with the optimized receive array for imaging the whole marmoset brain has been shown to produce images of high resolution and high SNR.

Impact: A shielded, band-pass birdcage transmit coil was designed and fabricated for marmoset brain imaging at 7T. An 8-channel receive array consisting of eight overlapped loops covering the whole brain of the marmoset was also built and applied for signal reception.

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