Wrist: Improved MR imaging with optimized transmit-receive coil design

被引：13

作者：

Kocharian, A ^{[1
]}

Adkins, MC ^{[1
]}

Amrami, KK ^{[1
]}

McGee, KP ^{[1
]}

Rouleau, PA ^{[1
]}

Wenger, DE ^{[1
]}

Ehman, RL ^{[1
]}

Felmlee, JP ^{[1
]}

机构：

[1] Mayo Clin & Mayo Fdn, Magnet Resonance Imaging Res Lab, Rochester, MN 55905 USA

来源：

RADIOLOGY | 2002年 / 223卷 / 03期

关键词：

magnetic resonance (MR); coils; technology; wrist; MR;

D O I：

10.1148/radiol.2233010824

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 [临床医学]; 100207 [影像医学与核医学]; 1009 [特种医学];

摘要：

The optimized wrist coil was designed and built as a transmit-receive birdcage coil for 1.5-T magnetic resonance (MR) imaging. Phantom studies were conducted to compare the optimized design with custom-designed and commercially available phased-array wrist coils and showed 50%-90% improvement in signal-to-noise ratio (SNR). Blinded review of wrist images obtained in six volunteers showed that the optimized birdcage coil was preferred in 75% of the comparisons. An optimized birdcage coil designed for wrist imaging has improved both SNR and uniformity compared with those with a phased-array coil with the same geometry. (C) RSNA, 2002.

引用

页码：870 / 876

页数：7

共 14 条

[1]

Anderson M W, 1998, Curr Probl Diagn Radiol, V27, P187

[2]

Magnetic resonance imaging in the evaluation of ligament injuries [J].

Farooki, S ;

Seeger, LL .

SKELETAL RADIOLOGY, 1999, 28 (02) :61-74

[3]

VOLUME IMAGING WITH MR PHASED-ARRAYS [J].

HAYES, CE ;

HATTES, N ;

ROEMER, PB .

MAGNETIC RESONANCE IN MEDICINE, 1991, 18 (02) :309-319

[4]

AN EFFICIENT, HIGHLY HOMOGENEOUS RADIOFREQUENCY COIL FOR WHOLE-BODY NMR IMAGING AT 1.5-T [J].

HAYES, CE ;

EDELSTEIN, WA ;

SCHENCK, JF ;

MUELLER, OM ;

EASH, M .

JOURNAL OF MAGNETIC RESONANCE, 1985, 63 (03) :622-628

[5]

Jin J., 1999, BIOMED EN S

[6]

Quantitative MR imaging of carpal tunnel syndrome [J].

Monagle, K ;

Dai, GP ;

Chu, A ;

Burnham, RS ;

Snyder, RE .

AMERICAN JOURNAL OF ROENTGENOLOGY, 1999, 172 (06) :1581-1586

[7]

*NEMA, 2000, 61991 NEMA MS

[8]

Pretorius ES, 1997, RADIOL CLIN N AM, V35, P145

[9]

Carpal tunnel syndrome: Are the MR findings a result of population selection bias? [J].

Radack, DM ;

Schweitzer, ME ;

Taras, J .

AMERICAN JOURNAL OF ROENTGENOLOGY, 1997, 169 (06) :1649-1653

[10]

THE NMR PHASED-ARRAY [J].

ROEMER, PB ;

EDELSTEIN, WA ;

HAYES, CE ;

SOUZA, SP ;

MUELLER, OM .

MAGNETIC RESONANCE IN MEDICINE, 1990, 16 (02) :192-225

← 1 2 →