Topic Index

Study MRI physics using interactive questions and answers. Choose a topic.

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Topic Index - t

• T1 (spin-lattice / longitudinal relaxation time constant)
  • a time constant
  • vs. T2
  • caused by...
  • and T2 separate processes
  • and correlation times
  • longer at higher magnetic field strengths
  • effect of Gd-DTPA contrast agent
  • T1 contrast
  • time for "full" T1 recovery
• T1 weighting
  • TR, TE for
• T2 (spin-spin / transverse relaxation time constant)
  • a time constant
  • relationship to T2*
  • vs. T1
  • caused by...
  • and T1 separate processes
  • T2 contrast
• T2 weighting
  • TR, TE for
  • T2 contrast
• T2* (spin-spin / transverse relaxation time constant (inc. B₀ effects))
  • relationship to T2
  • reversible effects
• TE (echo time)
  • affects T2 contrast
  • decreasing, SNR effect
  • in PD-weighting
• TFE, see turbo gradient echo
• time constant
  • defined
  • value of
• time-of-flight (TOF) effects
  • black blood and bright blood
• TR (repetition time)
  • affects T1 contrast
  • increasing, SNR effect
  • in PD-weighting
• transverse magnetisation
  • QM description of
  • provides measurable signal
• truncation artefact
  • in phase encoding direction
  • vs. motion artefact
  • mimicking pathology
• turboFLASH, see turbo gradient echo
• turbo gradient echo (TGE)
  • fast scanning and steady states
• turbo spin echo (TSE)
  • differs from conventional SE
• tutorials
  • animated

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