Literature DB >> 9951771

A method of RF inhomogeneity correction in MR imaging.

H Mihara1, N Iriguchi, S Ueno.   

Abstract

A direct postprocessing method for correcting RF inhomogeneity in MR imaging is proposed. First, two images with different flip-angles of theta and 2theta are obtained. Next, the spatial distribution maps of the sensitivity of the surface coil and the B1 field intensity are produced by employing those images. Finally, the correction of the MR image is achieved, dividing the original image by distribution maps of the coil sensitivity and the B1 field intensity. The method was applied to images obtained by a gradient echo sequence and the corrected image is presented.

Mesh:

Year:  1998        PMID: 9951771     DOI: 10.1007/BF02592235

Source DB:  PubMed          Journal:  MAGMA        ISSN: 0968-5243            Impact factor:   2.310


  10 in total

1.  Reduction of RF penetration effects in high field imaging.

Authors:  T K Foo; C E Hayes; Y W Kang
Journal:  Magn Reson Med       Date:  1992-02       Impact factor: 4.668

2.  The signal-to-noise ratio of the nuclear magnetic resonance experiment. 1976.

Authors:  D I Hoult; R E Richards
Journal:  J Magn Reson       Date:  2011-12       Impact factor: 2.229

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Authors:  C R Meyer; P H Bland; J Pipe
Journal:  IEEE Trans Med Imaging       Date:  1995       Impact factor: 10.048

4.  Correction of intensity variations in MR images for computer-aided tissue classification.

Authors:  B M Dawant; A P Zijdenbos; R A Margolin
Journal:  IEEE Trans Med Imaging       Date:  1993       Impact factor: 10.048

5.  Post-acquisition correction of MR inhomogeneities.

Authors:  S K Lee; M W Vannier
Journal:  Magn Reson Med       Date:  1996-08       Impact factor: 4.668

6.  A method for correctly setting the rf flip angle.

Authors:  W H Perman; M A Bernstein; J C Sandstrom
Journal:  Magn Reson Med       Date:  1989-01       Impact factor: 4.668

7.  Image non-uniformity in magnetic resonance imaging: its magnitude and methods for its correction.

Authors:  B R Condon; J Patterson; D Wyper; A Jenkins; D M Hadley
Journal:  Br J Radiol       Date:  1987-01       Impact factor: 3.039

8.  Correction for intensity falloff in surface coil magnetic resonance imaging.

Authors:  W W Brey; P A Narayana
Journal:  Med Phys       Date:  1988 Mar-Apr       Impact factor: 4.071

9.  Intensity correction in surface-coil MR imaging.

Authors:  L Axel; J Costantini; J Listerud
Journal:  AJR Am J Roentgenol       Date:  1987-02       Impact factor: 3.959

10.  Correction of intensity nonuniformity in MR images of any orientation.

Authors:  D A Wicks; G J Barker; P S Tofts
Journal:  Magn Reson Imaging       Date:  1993       Impact factor: 2.546

  10 in total
  11 in total

1.  Elucidation of accuracy in calibration of MR signal intensity based on transmission amplitude method.

Authors:  T Yamamoto; T Nambu; H Date; K Miyasaka
Journal:  MAGMA       Date:  2000-12       Impact factor: 2.310

2.  A wavelet-based approximation of surface coil sensitivity profiles for correction of image intensity inhomogeneity and parallel imaging reconstruction.

Authors:  Fa-Hsuan Lin; Ying-Jui Chen; John W Belliveau; Lawrence L Wald
Journal:  Hum Brain Mapp       Date:  2003-06       Impact factor: 5.038

3.  Intensity Inhomogeneity Correction of Magnetic Resonance Images using Patches.

Authors:  Snehashis Roy; Aaron Carass; Pierre-Louis Bazin; Jerry L Prince
Journal:  Proc SPIE Int Soc Opt Eng       Date:  2011-03-11

4.  COMPRESSED SENSING BASED INTENSITY NON-UNIFORMITY CORRECTION.

Authors:  Snehashis Roy; Aaron Carass; Jerry L Prince
Journal:  Proc IEEE Int Symp Biomed Imaging       Date:  2011-12-31

5.  Incorporating relaxivities to more accurately reconstruct MR images.

Authors:  Muge Karaman; Iain P Bruce; Daniel B Rowe
Journal:  Magn Reson Imaging       Date:  2015-01-15       Impact factor: 2.546

6.  Bias field correction in hyperpolarized 129 Xe ventilation MRI using templates derived by RF-depolarization mapping.

Authors:  Junlan Lu; Ziyi Wang; Elianna Bier; Suphachart Leewiwatwong; David Mummy; Bastiaan Driehuys
Journal:  Magn Reson Med       Date:  2022-05-04       Impact factor: 3.737

7.  3D non-contrast-enhanced ECG-gated MR angiography of the lower extremities with dual-source radiofrequency transmission at 3.0 T: Intraindividual comparison with contrast-enhanced MR angiography in PAOD patients.

Authors:  Michael Rasper; Moritz Wildgruber; Marcus Settles; Hans-Henning Eckstein; Alexander Zimmermann; Christian Reeps; Ernst J Rummeny; Armin M Huber
Journal:  Eur Radiol       Date:  2015-11-11       Impact factor: 5.315

8.  Impact of 3.0 T Cardiac MR Imaging Using Dual-Source Parallel Radiofrequency Transmission with Patient-Adaptive B1 Shimming.

Authors:  Haipeng Jia; Cuiyan Wang; Guangbin Wang; Lei Qu; Weibo Chen; Queenie Chan; Bin Zhao
Journal:  PLoS One       Date:  2013-06-18       Impact factor: 3.240

9.  Intensity Inhomogeneity Correction of Structural MR Images: A Data-Driven Approach to Define Input Algorithm Parameters.

Authors:  Marco Ganzetti; Nicole Wenderoth; Dante Mantini
Journal:  Front Neuroinform       Date:  2016-03-15       Impact factor: 4.081

10.  Quantitative Evaluation of Intensity Inhomogeneity Correction Methods for Structural MR Brain Images.

Authors:  Marco Ganzetti; Nicole Wenderoth; Dante Mantini
Journal:  Neuroinformatics       Date:  2016-01
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