Topic Index

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

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Topic Index - r

• radio waves
  • not used in MRI
• RARE, see turbo spin echo
• raw data space
  • and k-space
• real and imaginary signals
  • quad hybrid
  • quadrature demodulator
• receiver bandwidth
  • in SNR equation
  • smaller receiver BW affecting SNR
  • animated tutorial about
• receive chain
  • System Architecture
• reconstructor
  • performs the FFT
• recovery curves
  • construction of
  • T1
  • time for "full" recovery
• rectangular field-of-view
  • and missing k-space lines
• resistive magnet
  • vs. other types, pros / cons
• resolution of the system
  • modulation transfer function (MTF)
  • measuring the MTF
  • voxel size calculation
• resonance
  • the resonance of magnetic resonance
  • not rotation of nuclei
• respiratory compensation
  • reducing motion artefact
• RF coils
  • transmit and receive
  • surface receive coils
  • design features
  • decoupling of
  • phased array / multi element array
  • quadrature coil efficiency
• RF field, see magnetic field, oscillating at radiofrequency
• RF modulator
  • RF pulse shape
• RF noise spikes
  • corduroy artefact
  • herringbone pattern
  • humidity of scanning room
  • small central spike
  • small peripheral spike
  • large central spike
  • large peripheral spike
• RFOV, see rectangular field-of-view
• RF pulses
  • defined
  • excitation
• RF pulse shape
  • truncated sinc
  • 90° vs. 180°
• RF screen
  • Faraday cage
  • waveguides
• RF transmitter path
  • System Architecture
• rotation
  • is different from "spin"

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