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Monday, April 25, 2011

MRI take home point (9)

  • “Fast STIR” imaging collects multiple phase-encoding views (or lines in k-space) for each
  • 180-TI-90-TE/2-180-TE/2-ADC pulse train, making it a practical alternative
  • to FSE for obtaining fat-suppressed T2-weighted images.
  • Noise is best measured as the standard deviation in the background of an MRI.
  • Image SNR increases approximately linearly with static magnetic field strength above 0.5 tesla.

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