2016_Imaging for Physicists
Many reasons for artifacts
• Magnetic field errors – Gradient artifacts
– Susceptibility artifacts – Water-fat shift
• Geometrical artifacts show up in a particular direction
zyx B ) , ,(
G zyxB x x x ) , ,( ∆
∆ +=
+
0
1
G
G
x
x
G B y y y ∆ +=
1
G
y
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