Motion Artifact Correction in MRI Using Generalized Projections

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)40-46
Journal / PublicationIEEE Transactions on Medical Imaging
Volume10
Issue number1
Publication statusPublished - Mar 1991
Externally publishedYes

Link(s)

DOI

DOI
Check@CityULib
Link to Scopus https://www.scopus.com/record/display.uri?eid=2-s2.0-0026117505&origin=recordpage
Permanent Link https://scholars.cityu.edu.hk/en/publications/publication(a52d4fad-bc8d-4e55-8581-d807f0af2db5).html

Abstract

Patient motion during a magnetic resonance imaging (MRI) examination causes a ghost artifact in the image, which can interfere with the diagnosis. A new method is presented to suppress the translational motion artifact using post processing on a standard spin-warp image. It is shown that translational motion causes an additional phase factor in the detected signal and that this phase error can be removed using an iterative algorithm of generalized projections. The method has been tested using computer simulations and successfully removed most of the artifact. The algorithm converges even in the presence of severe noise. © 1991 IEEE.

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Publication fingerprints text

100
Motion Artifact Engineering
100
Magnetic Resonance ... Neuroscience
50
Iterative Algorithm Engineering
50
Phase Factor Engineering
50
Phase Error Engineering
50
Patient Motion Engineering
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Citation Format(s)

[ RIS ] [ BibTeX ]
Motion Artifact Correction in MRI Using Generalized Projections. / Hedley, Mark; Yan, Hong; Rosenfeld, Dov.
In: IEEE Transactions on Medical Imaging, Vol. 10, No. 1, 03.1991, p. 40-46.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review