Literature DB >> 7500889

Correction of motional artifacts in diffusion-weighted images using a reference phase map.

A M Uluğ1, P B Barker, P C van Zijl.   

Abstract

A method of correcting motional artifacts in diffusion-weighted images is described. Motion causes changes in the phase of the k-space NMR signal and thereby introduces positional shifts (or ghosts) in the spatial domain. By correcting the phase of the NMR signal before Fourier transformation, the image sharpness is greatly enhanced. The new method measures the phases of the NMR signal once and stores this phase information in a phase map. Subsequent images with motional artifacts are corrected during postprocessing using this reference phase map.

Mesh：

Year:  1995        PMID： 7500889     DOI： 10.1002/mrm.1910340327

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


  11 in total

1.  Heterochronicity of white matter development and aging explains regional patient control differences in schizophrenia.

Authors:  Peter Kochunov; Habib Ganjgahi; Anderson Winkler; Sinead Kelly; Dinesh K Shukla; Xiaoming Du; Neda Jahanshad; Laura Rowland; Hemalatha Sampath; Binish Patel; Patricio O'Donnell; Zhiyong Xie; Sara A Paciga; Christian R Schubert; Jian Chen; Guohao Zhang; Paul M Thompson; Thomas E Nichols; L Elliot Hong
Journal:  Hum Brain Mapp       Date:  2016-08-01       Impact factor: 5.038

2.  Assessment of whole brain white matter integrity in youths and young adults with a family history of substance-use disorders.

Authors:  Ashley Acheson; S Andrea Wijtenburg; Laura M Rowland; Anderson M Winkler; Frank Gaston; Charles W Mathias; Peter T Fox; William R Lovallo; Susan N Wright; L Elliot Hong; Donald M Dougherty; Peter Kochunov
Journal:  Hum Brain Mapp       Date:  2014-05-27       Impact factor: 5.038

3.  Genetics of microstructure of cerebral white matter using diffusion tensor imaging.

Authors:  P Kochunov; D C Glahn; J L Lancaster; A M Winkler; S Smith; P M Thompson; L Almasy; R Duggirala; P T Fox; J Blangero
Journal:  Neuroimage       Date:  2010-01-29       Impact factor: 6.556

4.  Combining diffusion tensor imaging and magnetic resonance spectroscopy to study reduced frontal white matter integrity in youths with family histories of substance use disorders.

Authors:  Ashley Acheson; S Andrea Wijtenburg; Laura M Rowland; Bethany C Bray; Frank Gaston; Charles W Mathias; Peter T Fox; William R Lovallo; Susan N Wright; L Elliot Hong; Stephen McGuire; Peter Kochunov; Donald M Dougherty
Journal:  Hum Brain Mapp       Date:  2014-07-21       Impact factor: 5.038

5.  Multi-shot sensitivity-encoded diffusion data recovery using structured low-rank matrix completion (MUSSELS).

Authors:  Merry Mani; Mathews Jacob; Douglas Kelley; Vincent Magnotta
Journal:  Magn Reson Med       Date:  2016-08-23       Impact factor: 4.668

6.  Fractional anisotropy of water diffusion in cerebral white matter across the lifespan.

Authors:  P Kochunov; D E Williamson; J Lancaster; P Fox; J Cornell; J Blangero; D C Glahn
Journal:  Neurobiol Aging       Date:  2010-02-01       Impact factor: 4.673

7.  Relationship between fractional anisotropy of cerebral white matter and metabolite concentrations measured using (1)H magnetic resonance spectroscopy in healthy adults.

Authors:  S A Wijtenburg; S A McGuire; L M Rowland; P M Sherman; J L Lancaster; D F Tate; L J Hardies; B Patel; D C Glahn; L E Hong; P T Fox; P Kochunov
Journal:  Neuroimage       Date:  2012-10-13       Impact factor: 6.556

8.  Loss of cerebral white matter structural integrity tracks the gray matter metabolic decline in normal aging.

Authors:  P Kochunov; A E Ramage; J L Lancaster; D A Robin; S Narayana; T Coyle; D R Royall; P Fox
Journal:  Neuroimage       Date:  2008-11-25       Impact factor: 6.556

9.  Processing speed is correlated with cerebral health markers in the frontal lobes as quantified by neuroimaging.

Authors:  P Kochunov; T Coyle; J Lancaster; D A Robin; J Hardies; V Kochunov; G Bartzokis; J Stanley; D Royall; A E Schlosser; M Null; P T Fox
Journal:  Neuroimage       Date:  2009-09-28       Impact factor: 6.556

10.  The common genetic influence over processing speed and white matter microstructure: Evidence from the Old Order Amish and Human Connectome Projects.

Authors:  Peter Kochunov; Paul M Thompson; Anderson Winkler; Mary Morrissey; Mao Fu; Thomas R Coyle; Xiaoming Du; Florian Muellerklein; Anya Savransky; Christopher Gaudiot; Hemalatha Sampath; George Eskandar; Neda Jahanshad; Binish Patel; Laura Rowland; Thomas E Nichols; Jeffrey R O'Connell; Alan R Shuldiner; Braxton D Mitchell; L Elliot Hong
Journal:  Neuroimage       Date:  2015-10-21       Impact factor: 6.556
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