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  Hadamard Encoded 3D MRSI of Human Brain at 7T

Hetherington, H., Avdievich, N., Gonen, O., & Pan, J. (2011). Hadamard Encoded 3D MRSI of Human Brain at 7T. Poster presented at 19th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2011), Montréal, Canada.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0002-4F7A-E Version Permalink: https://hdl.handle.net/21.11116/0000-0002-4F7B-D
Genre: Poster

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https://www.ismrm.org/11/TPE1.htm (Abstract)
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 Creators:
Hetherington, HP, Author
Avdievich, N1, Author           
Gonen, O, Author
Pan, JW, Author
Affiliations:
1Neurosurgery, Yale University, New Haven, CT, ou_persistent22              

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 Abstract: At 7T in the human brain reduced RF amplitude and increased spectral dispersion result in chemical shift dispersion (CSD) artifacts that can distort metabolite ratios. However, for 3D acquisitions CSD artifacts during slab selection corrupts the most superior and inferior slices manifesting as artifactually large and small NAA/Cr ratios. Hadamard encoding in the slab direction minimizes this error by providing multiple thin slices with minimal CSD effects, increasing spatial overlap of the Cr and NAA volumes, thereby increasing the overlap of NAA and CR volumes from <40% (conventional 3D CSI) to 92.5%.

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 Dates: 2011-05
 Publication Status: Issued
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Title: 19th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2011)
Place of Event: Montréal, Canada
Start-/End Date: 2011-05-07 - 2011-05-13

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Title: 19th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2011)
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 1426 Start / End Page: - Identifier: -