Implementation and Application of PSF-Based EPI Distortion Correction to High Field Animal Imaging
The purpose of this work is to demonstrate the functionality and performance of a PSF-based geometric distortion correction for high-field functional animal EPI. The EPI method was extended to measure the PSF and a postprocessing chain was implemented in Matlab for offline distortion correction. The...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2009-01-01
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| Series: | International Journal of Biomedical Imaging |
| Online Access: | http://dx.doi.org/10.1155/2009/946271 |
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| _version_ | 1850237762075099136 |
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| author | Dominik Paul Maxim Zaitsev Laura Harsan Anja Kurutsch Daniel Nico Splitthoff Franciszek Hennel Morwan Choli Dominik von Elverfeldt |
| author_facet | Dominik Paul Maxim Zaitsev Laura Harsan Anja Kurutsch Daniel Nico Splitthoff Franciszek Hennel Morwan Choli Dominik von Elverfeldt |
| author_sort | Dominik Paul |
| collection | DOAJ |
| description | The purpose of this work is to demonstrate the functionality and performance of a PSF-based geometric distortion correction for high-field functional animal EPI. The EPI method was extended to measure the PSF and a postprocessing chain was implemented in Matlab for offline distortion correction. The correction procedure was applied to phantom and in vivo imaging of mice and rats at 9.4T using different SE-EPI and DWI-EPI protocols. Results show the significant improvement in image quality for single- and multishot EPI. Using a reduced FOV in the PSF encoding direction clearly reduced the acquisition time for PSF data by an acceleration factor of 2 or 4, without affecting the correction quality. |
| format | Article |
| id | doaj-art-0e97c21195b04d359364cbae31fe2ef3 |
| institution | OA Journals |
| issn | 1687-4188 1687-4196 |
| language | English |
| publishDate | 2009-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Biomedical Imaging |
| spelling | doaj-art-0e97c21195b04d359364cbae31fe2ef32025-08-20T02:01:40ZengWileyInternational Journal of Biomedical Imaging1687-41881687-41962009-01-01200910.1155/2009/946271946271Implementation and Application of PSF-Based EPI Distortion Correction to High Field Animal ImagingDominik Paul0Maxim Zaitsev1Laura Harsan2Anja Kurutsch3Daniel Nico Splitthoff4Franciszek Hennel5Morwan Choli6Dominik von Elverfeldt7Department of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, 79106 Freiburg, GermanyDepartment of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, 79106 Freiburg, GermanyDepartment of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, 79106 Freiburg, GermanyInstitute of Pharmaceutical Sciences, Albert-Ludwigs-University Freiburg, 79104 Freiburg, GermanyDepartment of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, 79106 Freiburg, GermanyBruker Biospin, Ettlingen, GermanyResearch Center Magnetic Resonance Bavaria e.V (MRB), 97074 Würzburg, GermanyDepartment of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, 79106 Freiburg, GermanyThe purpose of this work is to demonstrate the functionality and performance of a PSF-based geometric distortion correction for high-field functional animal EPI. The EPI method was extended to measure the PSF and a postprocessing chain was implemented in Matlab for offline distortion correction. The correction procedure was applied to phantom and in vivo imaging of mice and rats at 9.4T using different SE-EPI and DWI-EPI protocols. Results show the significant improvement in image quality for single- and multishot EPI. Using a reduced FOV in the PSF encoding direction clearly reduced the acquisition time for PSF data by an acceleration factor of 2 or 4, without affecting the correction quality.http://dx.doi.org/10.1155/2009/946271 |
| spellingShingle | Dominik Paul Maxim Zaitsev Laura Harsan Anja Kurutsch Daniel Nico Splitthoff Franciszek Hennel Morwan Choli Dominik von Elverfeldt Implementation and Application of PSF-Based EPI Distortion Correction to High Field Animal Imaging International Journal of Biomedical Imaging |
| title | Implementation and Application of PSF-Based EPI Distortion Correction to High Field Animal Imaging |
| title_full | Implementation and Application of PSF-Based EPI Distortion Correction to High Field Animal Imaging |
| title_fullStr | Implementation and Application of PSF-Based EPI Distortion Correction to High Field Animal Imaging |
| title_full_unstemmed | Implementation and Application of PSF-Based EPI Distortion Correction to High Field Animal Imaging |
| title_short | Implementation and Application of PSF-Based EPI Distortion Correction to High Field Animal Imaging |
| title_sort | implementation and application of psf based epi distortion correction to high field animal imaging |
| url | http://dx.doi.org/10.1155/2009/946271 |
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