Abstract #4797
An Active Decoupled HTS Film Coil for 1.5T MRI
Lian Xue 1 , Zungang Liu 1 , Changwu Hu 1 , Kuan Zhang 1 , Erzhen Gao 1 , QY Ma 1 , Nikolaus M Szeverenyi 2 , Rebecca Theilmann 2 , and William Bradley 2
1
Time Medical Systems, Inc., San Diego, CA,
United States,
2
Radiology,
Univ. of California, San Diego, San Diego, CA, United
States
A clinically useful 10 cm diameter high temperature
superconductor (HTS) surface coil was designed,
constructed, and tested for wrist imaging performance on
a 1.5 Tesla scanner. The cryostat was constructed of
fiberglass and had a liquid nitrogen hold time of 5 hrs
and a vacuum hold time of 4 weeks. Comparison of this
coils performance with a commercial 10 cm room
temperature copper coil demonstrated a greater than 2
fold improvement in SNR. This receive coil has an active
detuning circuit that can be used in future array coils
designs.
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