In-room imaging and MR planning
Longitudinal steady-state & Ernst angle Haacke Ch18.1.1 / Bernstein Ch14.1
T
Longitudinal magnetization
R
1 − − /
+ (0) − /
(t) =
M
1
1
0
z
C
A B
− /
1 − − /
=
+
M
1
1
0
zC
[
=
]
=
+
(1 −
)
1
1
0
[
= =
]
Setting M zC
equal to M zA
(1 −
)
0
1
=
(1 −
)
1
Ernst angle: maximum signal
−1
=
1
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