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MEGA-PRESS MRS for GABA #8

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tsalo opened this issue Feb 26, 2020 · 1 comment
Open

MEGA-PRESS MRS for GABA #8

tsalo opened this issue Feb 26, 2020 · 1 comment
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low-priority Issues that are not urgent protocol-request Requests for protocols for specific purposes

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@tsalo
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tsalo commented Feb 26, 2020

Purpose

GABA detection

Source sequence (optional)

Unknown

Requesters

@tobiamj

Requested parameters

Parameters taken from Hu, Chen, Gu, & Yang (2013):

  • 2.4 x 3.2 x 3.6mm voxel
  • TE: 68 ms
  • TR: 5000 ms
  • Number of averages: 96
  • Editing pulse duration: 19.9 ms
  • Bandwidth: 45 Hz
  • Editing pulses and bandwidth applied alternatively at frequencies of 1.9 and 7.5 ppm
    • Not sure what this means
@tsalo tsalo added the protocol-request Requests for protocols for specific purposes label Feb 26, 2020
@tsalo tsalo added the low-priority Issues that are not urgent label Feb 26, 2020
@angielaird
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Matt and I acquired the CMRR MEGA PRESS sequence back in 2016, but we never got around to testing parameters. I had a couple of conversations with Eric Porges at UF a few years ago and I vaguely remember him saying they had a preferred sequence. If we do proceed with MEGA-PRESS, I'll want us to reach out to him first.

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@angielaird @tsalo