Abstract #3123
A 24-channel quadrature surface coil array for high-resolution human temporal lobe fMRI at 3T
Pu-Yeh Wu 1 , Ying-Hua Chu 1 , Shang-Yueh Tsai 2 , Wen-Jui Kuo 3 , and Fa-Hsuan Lin 1
1
Institute of Biomedical Engineering,
National Taiwan University, Taipei, Taiwan,
2
Institute
of Applied Physics, National Chengchi University,
Taipei, Taiwan,
3
Institute of Neuroscience,
National Yang Ming University, Taipei, Taiwan
We developed a 24-channel coil array for human brain
temporal lobe imaging. Specifically, we used 12 pairs of
quadrature surface coil to optimize the SNR around the
auditory cortex. Compared to two overlapped circular
loops, quadrature coil pair can improve the SNR by 22%.
Anatomical images acquired from our array show detailed
brain structure of the temporal lobe. Compared to a
32-channel head coil array, our array shows SNR
advantage at region no deeper than 5 cm from the scalp.
Functional MRI measurements using our array show strong
hemodynamic responses at the auditory cortex elicited by
music.
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