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  Half-Fourier single-shot STEAM MRI

Finsterbusch, J., & Frahm, J. (2002). Half-Fourier single-shot STEAM MRI. Magnetic Resonance in Medicine, 47(3), 611-615. Retrieved from http://onlinelibrary.wiley.com/doi/10.1002/mrm.10090/pdf.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0012-F436-E Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-9BCE-1
Genre: Journal Article

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 Creators:
Finsterbusch, J.1, Author              
Frahm, J., Author
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1Biomedical NMR Research GmbH, MPI for biophysical chemistry, Max Planck Society, ou_578634              

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Free keywords: high-speed imaging; single-shot STEAM MRI; half-Fourier; human brain
 Abstract: As a high-speed imaging technique based on stimulated echoes single-shot STEAM MRI is insensitive to chemical shift artifacts and magnetic susceptibility differences. The achievable signal-to-noise ratio (SNR) is limited by the fact that high flip angles of the read-out excitation pulses cause a steep decay of the stimulated echo train and therefore degrade the point-spread function of the resulting image. The present work investigates the use of half-Fourier phase encoding which weakens the flip angle constraint by reducing the number of necessary excitations. Single-shot STEAM MRI of the normal human brain at 2.0 T demonstrates that half-Fourier versions either reduce the measurement time by almost a factor of two without sacrificing the SNR or increase the SNR by about 40% while keeping the measurement time constant. (C) 2002 Wiley- Liss, Inc.

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Language(s): eng - English
 Dates: 2002-03
 Publication Status: Published in print
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 Rev. Method: Peer
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Title: Magnetic Resonance in Medicine
Source Genre: Journal
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Pages: - Volume / Issue: 47 (3) Sequence Number: - Start / End Page: 611 - 615 Identifier: -