Literature DB >> 8015414

A novel eddy current compensation scheme for pulsed gradient systems.

R E Wysong1, D P Madio, I J Lowe.   

Abstract

We describe a modified pre-emphasis network that uses a number of fixed time constants, only whose amplitudes are adjustable. In comparison with variable time constant pre-emphasis networks we have used, the fixed time constant network is more effective and easier to set on the fly. We have further developed a method to set the fixed time constant network mathematically using a linear least squares technique.

Mesh:

Year:  1994        PMID: 8015414     DOI: 10.1002/mrm.1910310517

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


  8 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.  Correction of parallel transmission using concurrent RF and gradient field monitoring.

Authors:  Mustafa Çavuşoğlu; Benjamin Emanuel Dietrich; David Otto Brunner; Markus Weiger; Klaas Paul Pruessmann
Journal:  MAGMA       Date:  2017-04-25       Impact factor: 2.310

3.  Metabolite 1H relaxation in normal and hyponatremic brain.

Authors:  W D Rooney; T Ebisu; A Mancuso; S Graham; M W Weiner; A A Maudsley
Journal:  Magn Reson Med       Date:  1996-05       Impact factor: 4.668

4.  Rapid single scan ramped hybrid-encoding for bicomponent T2* mapping in a human knee joint: A feasibility study.

Authors:  Hyungseok Jang; Alan B McMillan; Yajun Ma; Saeed Jerban; Eric Y Chang; Jiang Du; Richard Kijowski
Journal:  NMR Biomed       Date:  2020-08-05       Impact factor: 4.044

5.  Parallel transmission RF pulse design for eddy current correction at ultra high field.

Authors:  Hai Zheng; Tiejun Zhao; Yongxian Qian; Tamer Ibrahim; Fernando Boada
Journal:  J Magn Reson       Date:  2012-03-28       Impact factor: 2.229

6.  A rapid and robust gradient measurement technique using dynamic single-point imaging.

Authors:  Hyungseok Jang; Alan B McMillan
Journal:  Magn Reson Med       Date:  2016-10-03       Impact factor: 4.668

7.  Field camera versus phantom-based measurement of the gradient system transfer function (GSTF) with dwell time compensation.

Authors:  M Stich; J A J Richter; T Wech; T A Bley; R Ringler; H Köstler; A E Campbell-Washburn
Journal:  Magn Reson Imaging       Date:  2020-06-10       Impact factor: 2.546

8.  Thermal variation in gradient response: measurement and modeling.

Authors:  Jennifer Nussbaum; Benjamin E Dietrich; Bertram J Wilm; Klaas P Pruessmann
Journal:  Magn Reson Med       Date:  2021-12-21       Impact factor: 3.737

  8 in total

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