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  Sinogram-based coil selection for streak artifact reduction in undersampled radial real-time magnetic resonance imaging.

Holme, H. C. M., & Frahm, J. (2016). Sinogram-based coil selection for streak artifact reduction in undersampled radial real-time magnetic resonance imaging. Quantitative Imaging in Medicine and Surgery, 6(5), 552-556. doi:10.21037/qims.2016.10.02.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-1F0D-F Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-E19D-7
Genre: Journal Article

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 Creators:
Holme, H. C. M.1, Author              
Frahm, J.1, Author              
Affiliations:
1Biomedical NMR Research GmbH, MPI for biophysical chemistry, Max Planck Society, ou_578634              

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Free keywords: Coil selection; streak artifacts; radial MRI; real-time MRI
 Abstract: Background: Streak artifacts are a common problem in radial magnetic resonance imaging (MRI). We therefore developed a method for automatically excluding receiver coil elements which lead to these artifacts. Methods: The proposed coil selection relates to real-time MRI data based on highly undersampled radial acquisitions. It exploits differences between high- and low-resolution sinograms reconstructed from datasetsacquired during preparatory scans. Apart from phantom validations, the performance was assessed for real-time MRI studies of different human organ systems in vivo. Results: The algorithm greatly reduces streak artifact strength without compromising image quality in other parts of the image. It is robust with respect to different experimental settings and fast to be included in the online reconstruction pipeline for real-time MRI. Conclusions: The proposed method enables a fast reduction of streak artifacts in radial real-time MRI.

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Language(s): eng - English
 Dates: 2016-09-152016-10
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.21037/qims.2016.10.02
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Title: Quantitative Imaging in Medicine and Surgery
Source Genre: Journal
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Pages: - Volume / Issue: 6 (5) Sequence Number: - Start / End Page: 552 - 556 Identifier: -