Literature DB >> 2233222

Rapid radiofrequency calibration in MRI.

J W Carlson1, D M Kramer.   

Abstract

A collection of modified procedures for setting rf transmitter levels using a three-pulse sequence is described. Based on a geometrically weighted ratio of four signals, an estimate of the flip angle is calculated and used for an updating prescription. These techniques are designed to perform rapidly yet eschew systematic errors due to relaxation during the pulse sequence.

Mesh：

Year:  1990        PMID： 2233222     DOI： 10.1002/mrm.1910150309

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


  5 in total

1.  An in vivo comparison of the DREAM sequence with current RF shim technology.

Authors:  Kay Nehrke; Alois M Sprinkart; Peter Börnert
Journal:  MAGMA       Date:  2014-08-10       Impact factor: 2.310

2.  Practical considerations in T1 mapping of prostate for dynamic contrast enhancement pharmacokinetic analyses.

Authors:  Fiona M Fennessy; Andriy Fedorov; Sandeep N Gupta; Ehud J Schmidt; Clare M Tempany; Robert V Mulkern
Journal:  Magn Reson Imaging       Date:  2012-08-13       Impact factor: 2.546

3.  Across-vendor standardization of semi-LASER for single-voxel MRS at 3T.

Authors:  Dinesh K Deelchand; Adam Berrington; Ralph Noeske; James M Joers; Arvin Arani; Joseph Gillen; Michael Schär; Jon-Fredrik Nielsen; Scott Peltier; Navid Seraji-Bozorgzad; Karl Landheer; Christoph Juchem; Brian J Soher; Douglas C Noll; Kejal Kantarci; Eva M Ratai; Thomas H Mareci; Peter B Barker; Gülin Öz
Journal:  NMR Biomed       Date:  2019-12-18       Impact factor: 4.044

4.  Rapid radiofrequency field mapping in vivo using single-shot STEAM MRI.

Authors:  Gunther Helms; Jürgen Finsterbusch; Nikolaus Weiskopf; Peter Dechent
Journal:  Magn Reson Med       Date:  2008-09       Impact factor: 4.668

5.  Impact of number of channels on RF shimming at 3T.

Authors:  Alexander S Childs; Shaihan J Malik; Declan P O'Regan; Joseph V Hajnal
Journal:  MAGMA       Date:  2013-01-13       Impact factor: 2.310
  5 in total

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