High-Tc superconducting receiving coils for nuclear magnetic resonance imaging

被引：21

作者：

Lee, HL ^{[1
]}

Lin, IT

Chen, JH

Horng, HE

Yang, HC

机构：

[1] Natl Taiwan Univ, Interdisciplinary MRI MRS Lab, Dept Elect Engn, Taipei 106, Taiwan

[2] Natl Taiwan Univ, Inst Biomed Engn, Taipei 106, Taiwan

[3] Natl Taiwan Normal Univ, Inst Electroopt Sci & Technol, Taipei 116, Taiwan

[4] Natl Taiwan Normal Univ, Dept Phys, Taipei 116, Taiwan

[5] Natl Taiwan Univ, Dept Phys, Taipei 106, Taiwan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2005年 / 15卷 / 02期

关键词：

HTS RF surface coil; magnetic resonance imaging; signal-to-noise ratio;

D O I：

10.1109/TASC.2005.849582

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Nuclear magnetic resonance (NMR) microscopy poses high demands on the sensitivity of the receiver coils. We have developed high-T-c superconducting (HTS) tape receiving coils for nuclear magnetic resonance imaging. The surface receiver coil is constructed from high-T-c Bi2Sr2Ca2Cu3Oy tape coil and cooled in liquid nitrogen temperature. The desired receiver surface coil is numerically simulated and optimized to have high value of the unloaded quality factor. With this HTS receiver coil we have obtained significant improvement in the unloaded Q-value, loaded Q-value and substantial gain in signal-to-noise ratio (SNR). The SNR improvement of 2.4 was achieved in the kiwi imaging and improvement of 2.7 in the braining imaging of rat at 300 K. The MRI microscopy is tested and compared the results with copper receiver.

引用

页码：1326 / 1329

页数：4

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