Literature DB >> 11979579

Detunable transverse electromagnetic (TEM) volume coil for high-field NMR.

J T Vaughan1, G Adriany, M Garwood, E Yacoub, T Duong, L DelaBarre, P Andersen, K Ugurbil.   

Abstract

Most high-field MRI systems do not have the actively detuned body coils that are integral to clinical systems operating at 1.5T and lower field strengths. Therefore, many clinical applications requiring homogeneous volume excitation in combination with local surface coil reception are not easily implemented at high fields. To solve this problem for neuroimaging applications, actively detunable transverse electromagnetic (TEM) head coils were developed to be used with receive-only surface coils for signal-to-noise ratio (SNR) gains and improved spatial coverage from homogeneously excited regions. These SNR and field of view (FOV) gains were achieved by application of a detunable TEM volume coil to human brain imaging at 4T. Copyright 2002 Wiley-Liss, Inc.

Entities:  

Mesh：

Year:  2002        PMID： 11979579     DOI： 10.1002/mrm.10141

Source DB:  PubMed          Journal:  Magn Reson Med        ISSN： 0740-3194            Impact factor:   4.668


  38 in total

1.  Dual optimization method of radiofrequency and quasistatic field simulations for reduction of eddy currents generated on 7T radiofrequency coil shielding.

Authors:  Yujuan Zhao; Tiejun Zhao; Shailesh B Raval; Narayanan Krishnamurthy; Hai Zheng; Chad T Harris; William B Handler; Blaine A Chronik; Tamer S Ibrahim
Journal:  Magn Reson Med       Date:  2014-11-03       Impact factor: 4.668

2.  Parallel-plate waveguide for volume radio frequency transmission in MRI.

Authors:  Hai Lu; Shuo Shang; Shumin Wang
Journal:  Magn Reson Med       Date:  2014-11-13       Impact factor: 4.668

3.  Small tip angle three-dimensional tailored radiofrequency slab-select pulse for reduced B1 inhomogeneity at 3 T.

Authors:  Suwit Saekho; Fernando E Boada; Douglas C Noll; V Andrew Stenger
Journal:  Magn Reson Med       Date:  2005-02       Impact factor: 4.668

4.  Reduction of transmitter B1 inhomogeneity with transmit SENSE slice-select pulses.

Authors:  Zhenghui Zhang; Chun-Yu Yip; William Grissom; Douglas C Noll; Fernando E Boada; V Andrew Stenger
Journal:  Magn Reson Med       Date:  2007-05       Impact factor: 4.668

5.  4T split TEM volume head and knee coils for improved sensitivity and patient accessibility.

Authors:  Nikolai I Avdievich; Ken Bradshaw; Jing-Huei Lee; Andrey M Kuznetsov; Hoby P Hetherington
Journal:  J Magn Reson       Date:  2007-05-16       Impact factor: 2.229

6.  Top-down influences on lexical selection during spoken word production: A 4T fMRI investigation of refractory effects in picture naming.

Authors:  Greig de Zubicaray; Katie McMahon; Mathew Eastburn; Alan Pringle
Journal:  Hum Brain Mapp       Date:  2006-11       Impact factor: 5.038

7.  Fast-kz three-dimensional tailored radiofrequency pulse for reduced B1 inhomogeneity.

Authors:  Suwit Saekho; Chun-yu Yip; Douglas C Noll; Fernando E Boada; V Andrew Stenger
Journal:  Magn Reson Med       Date:  2006-04       Impact factor: 4.668

8.  Comparison of three commercially available radio frequency coils for human brain imaging at 3 Tesla.

Authors:  Ralf Mekle; Wietske van der Zwaag; Andreas Joosten; Rolf Gruetter
Journal:  MAGMA       Date:  2008-01-10       Impact factor: 2.310

9.  L-dopa modulates functional connectivity in striatal cognitive and motor networks: a double-blind placebo-controlled study.

Authors:  Clare Kelly; Greig de Zubicaray; Adriana Di Martino; David A Copland; Philip T Reiss; Donald F Klein; F Xavier Castellanos; Michael P Milham; Katie McMahon
Journal:  J Neurosci       Date:  2009-06-03       Impact factor: 6.167

10.  MRI contrasts in high rank rotating frames.

Authors:  Timo Liimatainen; Hanne Hakkarainen; Silvia Mangia; Janne M J Huttunen; Christine Storino; Djaudat Idiyatullin; Dennis Sorce; Michael Garwood; Shalom Michaeli
Journal:  Magn Reson Med       Date:  2014-02-12       Impact factor: 4.668
View more

北京卡尤迪生物科技股份有限公司 © 2022-2023.