THIN-FILM HIGH-TEMPERATURE SUPERCONDUCTING RF COILS FOR LOW-FIELD MRI

被引：51
作者：
VANHETEREN, JG
JAMES, TW
BOURNE, LC
机构：
[1] TOSHIBA AMERICA MRI INC,S SAN FRANCISCO,CA
[2] SUPERCONDUCTOR TECHNOL INC,SANTA BARBARA,CA 93111
来源：
MAGNETIC RESONANCE IN MEDICINE | 1994年 / 32卷 / 03期
关键词：
RF COILS; SUPERCONDUCTORS;
D O I：
10.1002/mrm.1910320315
中图分类号：
R8 [特种医学]; R445 [影像诊断学];
学科分类号：
1002 ; 100207 ; 1009 ;
摘要：
We have built and tested a thin-film high temperature superconducting (HTS) surface coil for MRI at 0.064T. When placed as close as possible to a conductive sample, the 6.7-cm outer diameter HTS coil had a measured signal-to-noise ratio (SNR) 1.8 times higher than a room temperature copper coil of similar size and location. Our results predict that in some cases, SNR gains of about a factor of 2 can be attained in low-field MRI systems by substituting HTS surface coils for copper coils.
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收藏
页码：396 / 400
页数：5
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