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  Human imaging at 9.4 T using T2*-, phase-, and susceptibility-weighted contrast

Budde, J., Shajan, G., Hoffmann, J., Ugurbil, K., & Pohmann, R. (2011). Human imaging at 9.4 T using T2*-, phase-, and susceptibility-weighted contrast. Magnetic Resonance in Medicine, 65(2), 544-550. doi:10.1002/mrm.22632.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-BC8C-C Version Permalink: http://hdl.handle.net/21.11116/0000-0001-BC95-3
Genre: Journal Article

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Budde, J1, 2, Author              
Shajan, G1, 2, Author              
Hoffmann, J1, 2, Author              
Ugurbil, K, Author
Pohmann, R1, 2, Author              
Affiliations:
1Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497796              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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 Abstract: The effect of susceptibility differences on an MR image is known to increase with field strength. Magnetic field inhomogeneities within the voxels influence the apparent transverse relaxation time T2*, while effects due to different precession frequencies between voxels caused by local field variations are evident in the image phase, and susceptibility-weighted imaging highlights the veins and deep brain structures. Here, these three contrast mechanisms are examined at a field strength of 9.4 T. The T2* maps generated allow the identification of white matter structures not visible in conventional images. Phase images with in-plane resolutions down to 130 amp;amp;956;m were obtained, showing high gray/white matter contrast and allowing the identification of internal cortical structures. The susceptibility-weighted images yield excellent visibility of small venous structures and attain an in-plane resolution of 175 mikro-m.

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 Dates: 2011-02
 Publication Status: Published in print
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 Rev. Method: -
 Identifiers: DOI: 10.1002/mrm.22632
BibTex Citekey: 6720
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Title: Magnetic Resonance in Medicine
Source Genre: Journal
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Publ. Info: New York : Wiley-Liss
Pages: - Volume / Issue: 65 (2) Sequence Number: - Start / End Page: 544 - 550 Identifier: ISSN: 0740-3194
CoNE: https://pure.mpg.de/cone/journals/resource/954925538149