Title :
Implementation of High-Temperature Superconducting tapes RF coils for 3T MRI system
Author :
Lin, In-Tsang ; Hsieh, Chang-Wei ; Kuo, Li-Wei ; Yang, Hong-Chang ; Yao, Ching ; Chang, Wei-Hao ; Chen, Jyh-Horng
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei
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 Bi2Sr2Ca2Cu3Ox (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%. The HTS coil can be expected to generate higher SNR gain after optimization. In the future, in-vivo experiments will be conducted to farther test the capability of the HTS tape coil. Further applications functional MRI is under investigation to test the power of this HTSC system in our 3T system
Keywords :
biomedical MRI; bismuth compounds; calcium compounds; high-temperature superconductors; phantoms; strontium compounds; superconducting coils; 200 mm; 3 T; 3T MRI system; Bi2Sr2Ca2Cu3O; high-temperature superconducting tapes RF coils; non-resistive high-temperature superconducting (HTS) coils; phantom; receiving coil noise; Copper; Costs; High temperature superconductors; Magnetic resonance imaging; Noise reduction; Radio frequency; Superconducting coils; Superconducting device noise; Superconducting films; Testing; Bi-2223; HTS; MRI;
Conference_Titel :
Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the
Conference_Location :
Shanghai
Print_ISBN :
0-7803-8741-4
DOI :
10.1109/IEMBS.2005.1616225
