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  Hyperelastic susceptibility artifact correction of DTI in SPM

Ruthotto, L., Mohammadi, S., Heck, C., Modersitzki, J., & Weiskopf, N. (2013). Hyperelastic susceptibility artifact correction of DTI in SPM. In H.-P. Meinzer, T. M. Deserno, H. Handels, & T. Tolxdorff (Eds.), Bildverarbeitung für die Medizin 2013: Algorithmen - Systeme - Anwendungen. Proceedings des Workshops vom 3. bis 5. März 2013 in Heidelberg (pp. 344-349). Berlin: Springer. doi:10.1007/978-3-642-36480-8_60.

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 Creators:
Ruthotto, Lars1, Author
Mohammadi, Siawoosh1, Author
Heck, Constantin1, Author
Modersitzki, Jan1, Author
Weiskopf, Nikolaus1, Author              
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1External Organizations, ou_persistent22              

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 Abstract: Echo Planar Imaging (EPI) is a MRI acquisition technique that is the backbone of widely used investigation techniques in neuroscience like, e.g., Diffusion Tensor Imaging (DTI). While EPI offers considerable reduction of the acquisition time one major drawback is its high sensitivity to susceptibility artifacts. Susceptibility differences between soft tissue, bone and air cause geometrical distortions and intensity modulations of the EPI data. These susceptibility artifacts severely complicate the fusion of micro-structural information acquired with EPI and conventionally acquired structural information. In this paper, we introduce a new tool for hyperelastic susceptibility correction of DTI data (HySCO) that is integrated into the Statistical Parametric Mapping (SPM) software as a toolbox. Our new correction pipeline is based on two datasets acquired with reversed phase encoding gradients. For the correction, we integrated the variational image registration approach by Ruthotto et al. 2007 into the SPM batch mode. We briefly review the model, discuss involved parameter settings and exemplarily demonstrate the effectiveness of HySCO on a human brain DTI dataset.

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Language(s): eng - English
 Dates: 2013-02-202013-03-16
 Publication Status: Published in print
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 Identifiers: DOI: 10.1007/978-3-642-36480-8_60
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Title: Bildverarbeitung für die Medizin 2013: Algorithmen - Systeme - Anwendungen. Proceedings des Workshops vom 3. bis 5. März 2013 in Heidelberg
Source Genre: Proceedings
 Creator(s):
Meinzer, Hans-Peter1, Editor
Deserno, Thomas Martin1, Editor
Handels, Heinz1, Editor
Tolxdorff, Thomas1, Editor
Affiliations:
1 External Organizations, ou_persistent22            
Publ. Info: Berlin : Springer
Pages: XXI, 376 S. Volume / Issue: - Sequence Number: - Start / End Page: 344 - 349 Identifier: DOI: 10.1007/978-3-642-36480-8
ISBN: 978-3-642-36479-2
ISBN: 978-3-642-36480-8

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Title: Informatik aktuell
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