MRT-Physics

  1. RF Puls + Slice Selection Gradient
  2. Phase Encoding
  3. Frequency Encoding
  4. Sequence Repetition
number of phase encoding steps determines the number of lines in k-space and, hence, the resolution (e.g. 512 phase encoding steps gives a resolution of 512 in the y-axis)

The scan time = TR x number of phase encoding steps x NEX

(NEX = number of signal averages)

Diskussion