Cover Imaging for Physicists

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Impact on geometrical accuracy
Group y-terms for distortions in fase-encoding direction:
and solve for y 1
y y y G y y TGmy Tzyx Bm TG ym
y
∆ −= ∆ − ∆ −∆ 1 ) , ,( γ γ γ
y
G
G
B
y y y
∆
∆
+=∆
1
y
G
G
B
y y y
∆
+=
1
Assuming that the errors in the gradient are independent of the gradient
step, this is equal to