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Imaging Gradients
•
3 orthogonal or in
combination
Spatially encode image
•
Higher amplitudes
mean:
Better resolution
greater diffusion
weighting
•
Faster switching rates
mean:
Faster scans
isocentre
G
z
= dB
0
/dz
RF
G
z
G
y
G
x
90
°
180
°
B
0