Magnetic resonance imaging of rodent spinal cord with an improved performance coil at 7 Tesla

Magnetic Resonance Imaging of animal models provide reliable means to study human diseases. The image acquisition particularly determined by the radio frequency coil to detect the signal emanated from a particular region of interest. A scaled-down version of the slotted surface coil was built based...

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Bibliographic Details
Main Authors: Solis-Najera, S E, Rodriguez, A O
Format: Conference Proceeding
Language:English
Subjects:
Circularity
Coiling
Coils
Computer simulation
Image acquisition
Image detection
Magnetic resonance imaging
NMR
Nuclear magnetic resonance
Q factors
Spinal cord
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Summary:Magnetic Resonance Imaging of animal models provide reliable means to study human diseases. The image acquisition particularly determined by the radio frequency coil to detect the signal emanated from a particular region of interest. A scaled-down version of the slotted surface coil was built based on the previous results of a magnetron-type surface coil for human applications. Our coil prototype had a 2 cm total diameter and six circular slots and was developed for murine spinal cord at 7 T. Electromagnetic simulations of the slotted and circular coils were also performed to compute the spatially dependent magnetic and electric fields using a simulated saline-solution sphere. The quality factor of both coils was experimentally measured giving a lower noise figure and a higher quality factor for the slotted coil outperforming the circular coil. Images of the spinal cord of a rat were acquired using standard pulse sequences. The slotted surface coil can be a good tool for spinal cord rat imaging using conventional pulse sequences at 7 T.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4901396