-
!"#$%&'()'
*+&,-$.&/0$1234
!"$567&,)86$599:()&;(/,$!&,&-88&:;2)&
-
@!"$%&'()'
!"#$%"&'()&*!+
$AB$1+;$'+CD8);$(,$C(-$E&-,8;()$F(8:6$
$@B$?
-
I!"$%&'()'
!"#$"8)(98
P;89$AN$1+;$;28$9&;(8,;$(,;/$&$C(-$E&-,8;()$F(8:63$
?28$E&-,8;()$F(8:6$('$+'86$;/$&:(-,$G&;8
-
O!"$%&'()'
5$9+:'8$'8X+8,)8$('$+'86$;/$U8Y)(;8V$'8);(/,'
/F$'9(,'$+'(,-$
-
S!"$%&'()'
!"
$%&123)
,./
!"
Computer
After excitation, the magnetization precesses around the main
field (B0). Any RF coil nearby will pick up the signal or echo as
the magnetization spins around the main field
= =
!"#$"8)(98
P;89$IN$"8)8(78$
-
T!"$%&'()'
$%&123)
,./
!"
Computer
The MR signal, or echo, is acquired and stored in a k-space
matrix. Several echoes (e.g., 256) are collected to fill the
matrix....
Math(Fourier Transform)
Acquire
!"#$"8)(98
P;89$ON$P;/
-
[!"$%&'()'
,"#"--.)/&012$%3"45
!&-,8; *
-
\!"$%&'()'
!"#$PK';8E$./E9/,8,;'
?28$!&-,8;
?28$*
-
^!"$%&'()'
?28$!"$#E&-(,-$.2&(,
:;1AB9"+C4!1'+C%&!+$"C4;"+'9"+C4C'9
$?28$!&-,8;
?28$*
-
?28$!&-,8;
-
AA
!"$%&'()'
Z(8:6$';/E/-8,8(;K$$
P2(EE(,-
P(;(,-$8&'8
.
-
A@
!"$%&'()'
!&-,8;()$Z(8:6$P;
-
AI
!"$%&'()'
from 0.2T
to 9.4T0.35T
9.4T
3T94
1.5T
G3
7.0T
0.2T
0.7T
Research
Clinical
-
AO
!"$%&'()'
Effects of Increasing Field Strength
d/,-8
-
AS
!"$%&'()'
1.5 TExcite
3.0 TExcite
Effects of Increasing Field StrengthSNR
Images courtesy of Edison Imaging
-
AT
!"$%&'()'
3.0T
1.5T
Images courtesy of Stanford University
Effects of Increasing Field StrengthBOLD effect
fMRI
-
A[
!"$%&'()'
>/E/-8,8(;K$L$]2&;$('$(;_
>/E/-8,8(;K$('$68F(,86$&'$U9&
-
A\
!"$%&'()'
!"#$%#&'()"*+%,
= =
!"#$#%%&'()*
+"#,-#($.
/0123456
789:;(#?
+*@AB?"#(>?C
-
A^
!"$%&'()'
#,$&$2/E/-8,8/+'$7/:+E8$/F$
;(''+8$&::$'9(,'$H/F$;28$'&E8$
;K98B$2&78$;28$'&E8$!"$
F/E/-8,8(;K$L$]2K$4/8'$(;$!&;;8
-
@M
!"$%&'()'
#,$&,$(,2/E/-8,8/+'$7/:+E8$
/F$;(''+8$'9(,'$2&78$&$6(FF8/E/-8,8(;K$L$]2K$4/8'$(;$!&;;8
-
@A
!"$%&'()'
>/E/-8,8(;K$L$]2K$4/8'$(;$!&;;8
-
@@
!"$%&'()'
>/E/-8,8(;K$L$]2K$4/8'$(;$!&;;8
-
@I
!"$%&'()'
!P2(EE(,-$('$;28$9
D)>(#?
-
@O
!"$%&'()'
Z
- ?28$*
-
@T
!"$%&'()'
.+
-
@[
!"$%&'()'
!&D/
-
@\
!"$%&'()'
]2K$6/$*
-
@^
!"$%&'()'
=h.#?=
PE&
-
?28$4&;&$1(98:(,8
-
IA
!"$%&'()'
?28$4&;&$1(98:(,8$
H-")
+45")'.#"
!""#$#%&'(%
!"#"$I" A)(#"[email protected].
J.-"A(-5
A)(#"--$49K).4-3$5
=h.#?=$?8)2,/:/-K
?28$4&;&$1(98:(,8$('$&$E&;;8
-
I@
!"$%&'()'
P(,-:8J8:8E8,;$28&6$)/(:
T$':()8'
@MMA
M3O$!%m'8)
\J)2&,,8:$C
-
II
!"$%&'()'
1
- "Z$./(:$1/
-
IS
!"$%&'()'
>/G$6/8'$)/(:$-8/E8;
-
IT
!"$%&'()'
?28$"Z$./(:$1/
-
I[
!"$%&'()'
A)2$?m"$>8&6$./(:$7'$\)2$%
-
I\
!"$%&'()'
High Definition Spine Array
-
I^
!"$%&'()'
Transmit and Receive Knee and Foot Coil
- 599:()&;(/,'$1/
-
OA
!"$%&'()'
*//6$"Z$./(:$1/
-
O@
!"$%&'()'
>(-2$P9&;(&:$"8'/:+;(/,q
#E&-86$,/;$#,;8(-2$?8E9/
-
OI
!"$%&'()'
.&
-
Applications PROPELLER - #,'8,'(;(78$;/$1&;(8,;$!/;(/,
1-in-6 pediatric patients do not respond adequately to sedation;
1-in-14 fail to respond at all.
1(98:(,8
Oh$(E&-8'
Th$)&:)+:&;(/,'
!/;(/,$
)/
-
OS
!"$%&'()'
HD Applications PROPELLER
Motion artifact High resolutionAdditional
Challenges:#Uncooperative patients
1(98:(,8
Oh$(E&-8'
Th$)&:)+:&;(/,'
!/;(/,$
)/
-
F!"#$5)X+('(;(/,N$H!#4;2#I"$,B
-
F!"#$5,&:K'('N$H!#4;2#I"$J:
Activationover anatomy in three planes
axial coronal sagittal
3D viewer
-
?2&,RJK/+$s
P+EE&
