Implementation of Bi-2223 HTS tapes as RF coils for 3T MRI system
Journal
IEEE Region 10 Annual International Conference, Proceedings/TENCON
Journal Volume
2007
Date Issued
2007
Author(s)
Abstract
One way to reduce receiving coil noise in MRI scans is using non-resistive high-temperature superconducting (HTS) coils. They show advantages of much lower cost and easier fabrication over HTS thin film coils. In this work, we built a 200 mm in diameter Bi 2 Sr 2 Ca 2 Cu 3 O x (Bi-2223) tape HTS RF coil and demonstrated that the SNR of using the HTS tape coil was 2.22 folds higher than that of the traditional copper coil for a phantom MR study. Test results were in agreement with predictions, and the error of predicted SNR gains and measured SNR gains is about 0.9%. In vivo imaging, we also demonstrated that the SNR of using the HTS tape coil was 1.95 folds higher than that of the traditional copper coil for a human wrist MR study. The HTS coil can be expected to generate higher SNR gain after optimization. Further applications functional MRI is under investigation to test the power of this HTSC system in our 3T system.
SDGs
Type
conference paper