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  Qualitative Comparison between In Vivo J-Resolved Semi-LASER at 3 T and 9.4 T

Murali Manohar, S., Giapitzakis, I., Borbáth, T., Gaertner, M., & Henning, A. (2017). Qualitative Comparison between In Vivo J-Resolved Semi-LASER at 3 T and 9.4 T. Poster presented at 25th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2017), Honolulu, HI, USA.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0000-C49D-2 Version Permalink: https://hdl.handle.net/21.11116/0000-0001-2159-6
Genre: Poster

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Murali Manohar, SV1, 2, Author           
Giapitzakis, IA1, 2, Author           
Borbáth, T1, 2, Author           
Gaertner, M, Author
Henning, A1, 2, Author           
Affiliations:
1Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              
2Research Group MR Spectroscopy and Ultra-High Field Methodology, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_2528692              

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 Abstract: J-resolved semi-LASER with maximum-echo sampling is optimized at 9.4T and compared with the same implementation at 3T in terms of SNR and spectral resolution. SODA scheme is appreciated for the sequence rather than the MC scheme. SNR at 9.4T (t1 steps: 85) was approximately 5.8 times greater than at 3T (t1 steps: 100) and strongly coupled peaks are well-resolved. However, the trade-off between SNR and spectral resolution is explained as lactate (1.32 ppm), a weakly-coupled metabolite, is better resolved at 3T. Higher band-width AFP pulses helped in almost vanishing the J-refocused peaks which made the J-resolved peaks clearly distinguishable. A few interesting downfield peaks and the doublet of NAA (7.82ppm) are observed.

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 Dates: 2017-04-27
 Publication Status: Issued
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 Identifiers: BibTex Citekey: MuraliManoharGBGH2017
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Title: 25th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2017)
Place of Event: Honolulu, HI, USA
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Title: 25th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2017)
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 3015 Start / End Page: - Identifier: -