Phase unwrapping of MR images using ΦUN - A fast and robust region growing algorithm

Witoszynskyj, Stephan, Rauscher, Alexander, Reichenbach, Jürgen R. and Barth, Markus (2009) Phase unwrapping of MR images using ΦUN - A fast and robust region growing algorithm. Medical Image Analysis, 13 2: 257-268. doi:10.1016/j.media.2008.10.004


Author Witoszynskyj, Stephan
Rauscher, Alexander
Reichenbach, Jürgen R.
Barth, Markus
Title Phase unwrapping of MR images using ΦUN - A fast and robust region growing algorithm
Journal name Medical Image Analysis   Check publisher's open access policy
ISSN 1361-8415
1361-8423
Publication date 2009
Sub-type Article (original research)
DOI 10.1016/j.media.2008.10.004
Open Access Status
Volume 13
Issue 2
Start page 257
End page 268
Total pages 12
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Language eng
Abstract We present a fully automated phase unwrapping algorithm (ΦUN) which is optimized for high-resolution magnetic resonance imaging data. The algorithm is a region growing method and uses separate quality maps for seed finding and unwrapping which are retrieved from the full complex information of the data. We compared our algorithm with an established method in various phantom and in vivo data and found a very good agreement between the results of both techniques. ΦUN, however, was significantly faster at low signal to noise ratio (SNR) and data with a more complex phase topography, making it particularly suitable for applications with low SNR and high spatial resolution. ΦUN is freely available to the scientific community.
Keyword Field maps
MRI
Phase imaging
SWI
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Centre for Advanced Imaging Publications
 
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