Solenoid coil for mouse-model MRI with a clinical 3-Tesla imager: body imaging

S.S. Hidalgo, D. Jirak, S. E. Solis, A.O. Rodriguez


A solenoid coil was built for magnetic resonance imaging of the mice.
A coil prototype composed of 5 turns, with a length of 4 cm and 2.5
cm radius was developed to acquire (whole) body mouse magnetic resonance
images at 130 MHz and an insertable gradient coil set. Coil performance
was measured using the \emph{Q} factor for both the loaded and unloaded
cases were 161.67 and 178.03, respectively. These \emph{Q} factors
compare very well with those values reported in the literature. The
images were acquired with a clinical 3 T system equipped with a custom-built
gradient insert coil and gradient echo image sequence. Both phantom
and in vivo images showed good signal-to-noise ratio and uniformity.
The electromagnetic interaction between the insertable coils and the
solenoidal coil is poor, and no image artefacts are present in the whole-body
image of the mouse. This preliminary experience has shown that consistent
high quality MR images of the mice can be obtained using this particular
hardware configuration, making it a promising method for acquisition
of high-spatial resolution MR images of mice. Volume coils are still
a good choice when combined with high field MR imagers and standard
gradient echo sequences for the magnetic resonance imaging of the


mouse MRI; solenoid coil; electromagnetic simulation

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Revista Mexicana de Física

ISSN: 2683-2224 (on line), 0035-001X (print)

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