) n- b( ~+ D; |: `" B5 W+ _! o& ?
+ [9 o3 U8 \& |* i| ( M3 ^! H) f9 x1 `* H/ q: V! |
Pulse Sequence |
) j1 P$ c- B1 r' q& N: H+ m+ Q% |& ?
Siemens |
1 f7 P2 S' D! w1 _2 ^, f% q+ } d- s6 b& t. P ~3 s: {' {( T
GE |
# ]) s/ M0 [9 a0 l- F$ h J; e$ h
8 N/ F: Z H8 S5 @4 x/ k( }| ) W/ D/ F" J f, j" D5 f' Z
| " m# I/ j' R; }! T) P
) W/ J* t6 W2 h* n" e" g
|
' a3 G: d7 J% J
7 ~9 g! [6 D6 o& E/ E( B |
+ Q8 A i0 {: P: r) z6 h1 }" h! P8 o: ?+ a8 H
|
% a* C4 z$ l# Z( x Spin Echo |
. F+ X" k: e, [& f& I) I* k; @: O/ \8 d% ~/ J/ T
Spin Echo, SE |
0 T& z2 V1 {2 `- I/ x& g2 c: e1 N" C$ ]( H6 M$ M) V$ w3 v2 z
Spin Echo |
$ D0 ^# r" |# w, j6 b% w: w4 `* M
1 J1 Y# ^) T1 I3 d! r1 |
| 3 Y. d5 }1 ~% e# f+ Q) \& }
Gradient Echo | 0 C0 V; O, n2 A. Z
$ @5 k6 s, { I
Gradient Echo, GRE |
- l! T# S* z' V6 R2 P3 u( J/ C$ L t! M1 l s3 L
GRE, GRASS |
+ q+ h, k( L( I9 i
! w5 a+ L4 z5 i a* h9 `
|
# z% A- }. f- v! K; N, W Spoiled Gradient Echo | ! s' u2 @, `' m+ _) C: \- Y% [& C
7 T. G% a" Y2 d
FLASH | , B0 T8 C/ v1 P: `8 d" i; {
# A- w+ Z! C. D; p K SPGR |
, r7 L: n3 M `
' G, K6 @2 }4 q
|
6 b, o* M6 `) n r3 J; f Steady State Free Process |
$ }# a( u5 r. D. U5 ~
/ Z: Y' Q2 q7 \9 k/ B7 } TrueFISP | ' u0 [+ Q. W6 [: | O
) o" s. c! F% b* i FIESTA |
6 Y, g0 R1 B* K4 i, d y
/ D+ V" F6 m% V8 E8 |
| 1 G$ I7 h) I; X/ t5 I, A
Ultra Fast Gradient Echo |
! C6 ^! T. _1 W( t! i+ _$ N9 G! d) ^5 \4 y* u2 _
Turbo Flash | & i8 T& Z! G, Z
- c9 t" @) ]$ u4 T2 s- A9 K. }
Fast GRE, Fast SPGR |
) w. b% k6 ~( o9 {" U5 \8 v
4 Q- f+ V( T% }- s/ _9 L: H: k6 z+ l
|
% ~/ n2 \2 }6 B: O) F' q 3D Ultra Fast | ( |: A# O7 A% ?0 p8 g- @5 \
2 |' M' V: W! B+ P6 V4 F' J
MP Rage | & }! L. q+ }9 h$ `& `. b% \1 H- |0 X
# G0 d9 L$ |, R/ }& R 3DFGRE, 3D Fast SPGR |
) y3 J, x2 W" F1 C+ X9 h+ ?
* R8 Y/ o4 ^3 z- {% \| , g$ h) ~" S) ^. y4 H! [" r+ z
Inversion Recovery | ( u# L, c, s& Y- Y0 q$ a
0 d- {; D8 t9 T: _4 U" j7 T1 ^ i4 r
IR, TurboIR, TIR | + f% [; U. f5 q' U# \
& B( p2 l" n J: Z2 W
IR, MPIR |
; C7 L, _* C" w7 ^
y) T/ ~3 s. z. |( c! j: m- u| L6 ? u+ B7 v
Short tau IR | - [% r7 A' S9 p/ P5 o4 O
* Z% ]& Q F. A5 p$ w& T! X# ? STIR | & `. o. h- L7 O: w5 N! C
9 J, e! u' a X7 X) `% `* F STIR |
e- ]: N; H: N, L* {7 ~8 n3 ]
- w H1 f/ z9 q. I( x
|
6 K! b' I# Q: ?; }; |& l RARE Sequence Rapid Acquisition Relaxation Enhancement | 3 x$ I0 b& z+ ^& @
$ @9 i: s ], B- ]- V0 Y8 k
Turbo Spin Echo, TSE | 9 k5 u' n+ u2 n' @) u& }# ~
( s. v! N0 E& u2 R Fast Spin Echo |
7 H$ W0 d( |& D# ^5 I4 J$ Y( k2 \& k0 h* q% I; [
| . i( E4 G; B" o: w& i
Gradient and Spin echo |
6 j4 C- m( ^: ~# ?
% Q2 J5 T- M( o. C Turbo GSE, TGSE | $ n5 t0 ?6 J* \- y
$ p2 }0 r( O3 `% v. D6 K' Y
GRASE |
5 C I+ T2 x8 J6 R
' a, d; L e2 r5 l& ^) O|
, i- Q/ b# k, C5 P( k Parallel Imaging | % o+ T' L8 f* n9 z9 |" s4 n- o% T
1 i% A. `. W1 i ^5 I IPAT |
1 e& p( O2 W2 t# I& ?: o1 r8 U
& Z* _% n+ N) u/ M2 ] ASSET |
" E5 J3 }$ h% {; Y; `
7 T1 z3 e* |0 r4 I4 W8 L6 _|
. o6 s5 p/ m% m$ w) k Flow Velocity Encoding |
4 H1 {# \# _0 K6 ]* U; W' }; }$ V( l8 r3 u' ]
Phase Contrast | & \1 e- P! t5 L) ]4 n
: Y2 }) t+ U) N1 ~ Phase Contrast |
% R% _2 [+ u# L2 y8 u2 j- L1 g6 o7 P! n, f8 r
|
+ d! L7 m J+ | |- }* C: @ Half Fourier Single Shot Turbo (Fast) Spin Echo |
/ r6 R4 L# M; D( f* w J; }- ?6 M0 F y9 I; I2 u
HASTE | 7 k( o$ G g* F
3 y1 w0 `2 I; N: z6 }
SSFSE |
2 A8 t( k8 ]/ I. I4 |: B0 } L+ F" e5 x! }! {9 z
| 9 E2 ]* [: o0 v# C9 {5 M2 D
Cine Study (cardiac) | + a# V2 u+ b! W% S- \
. Q6 O: d0 u0 c
CINE FLASH | % Z- K8 W2 a" Q6 J3 m a
, d: p; ]1 p) D, ?/ f0 y6 c \: Z
Cine, FASTCARD |
l4 n) L# b# E2 d: m
+ k% F- q% W. i' X {* O| ! n+ S+ U! ]9 o) p
Spin echo black blood (cardiac) |
. {6 V1 _# z7 r& R' o6 @
& ~6 \9 \. U9 R dark-blood prepared TSE, HASTE, FLASH | 0 N6 j8 g8 |! p5 f S
( ]9 c( Q& V9 ?' f2 I6 n# }
Double IR FSE, FSE-XL with Blood suppression |
' Z n7 y* |: C1 x3 k# l Z$ I2 N7 S. G% i$ @, o9 u i. Q. s( {
| ' }# U8 c9 v0 M @# w
Spin echo black blood null fat (cardiac) |
* l+ w9 y% y' b5 _" T' H5 b) Y& |0 [6 |) v
TRIM | ( F! i6 N% c; E2 A9 g
2 h: @. Y' I5 Z$ {+ U Triple IR FSE, FSE-XL IR with blood suppression |
: H) n2 V( t% `7 e, y( k
$ A1 J& j$ @" V! L) x: C3 L# Y
|
* d% l" w1 ^' ?( @# s; e# k Viability imaging (cardiac) |
' I+ Q! l( R/ \, J) B0 Y5 x h M( U3 c$ @$ h* h$ s! P! Z5 q2 x m& R8 ?
Segmented 2D TurboFLASH |
7 `: o$ {/ W: o+ {6 J! O' G
" a$ E) N6 W6 M8 ^ ^, m Myocardial Delayed enhancment (MDE) IR Prep Gated FGRE |
1 b5 i$ n8 K" K
; [+ Q/ D7 {: r v9 n0 l
| ; I6 j- n8 A9 u8 W7 K
Myocardial perfusion (cardiac) | 7 B: y1 Z; Q# x' T+ M% \; L- B1 ^
% i: W" j& n" Y3 o" \7 H. K
2D TurboFLASH, SS TrueFisp sat or Ir, gre-epi |
# [+ ?$ j$ z3 U# t+ D, L: q8 [+ r$ F+ ^2 V$ ]4 p- Q
FGR-ET multiphase |
2 d0 j$ O( q* u6 ]: o, O$ j. E: `0 K" W* M/ m7 D
| 9 E. q% e/ M W$ b
Scan Parameters |
2 }% ]6 J; k a: t8 G
' `6 _, s( k2 ~- { t6 G1 L1 G |
: ?2 b% Z4 g4 E7 o. q1 h0 v0 m: N, d5 W! I' L
|
( A; p* g/ m9 B7 K+ K: }, k e3 A5 ]
8 @1 v. T' S2 ~1 { R1 _% J|
+ X1 _8 h& w7 K/ Q9 F+ b+ M Echo Time, Repitition Time | 3 I# U+ Z8 I! i; ~3 m# Y+ V
, @8 g# y0 g' P) j. ?
TE, TR in msec |
, h3 t2 W6 W& e$ s5 m; W* T
' Y& H! f5 g# E- a) w8 |. }* E" m8 p TE, TR in msec |
) b+ x( p' j/ w+ F5 M
7 R8 y% B. D! I! v' M
|
( L6 B# l7 M3 u9 j8 R% P) U Inversion Time |
: \* ]& b4 m, I6 @0 y) r" z2 J; b7 s+ y! Z- y
TI in msec | 0 n, |# k2 Z0 Q& ^6 Q; n
9 {" ~6 P7 \+ [3 P/ a
TI in msec |
4 b) l; T" ^+ y: o
' C( I- j& o$ I H| 9 D! m7 K l" h& C' g8 D5 e
# of echos per TR |
0 d7 J. X6 ~, W
" E5 I. I; H, z3 s Echo Train Length, ETL, Turbo Factor | + X8 Z3 w2 v- S- Y
5 A* T8 T, j7 k9 R2 ~+ Y& B ETL |
$ D Z! a4 _% `2 g% F
9 H9 u" M+ x3 k- Q
| . S' S- V9 c X! `) K* \5 Z
Time between echos |
% s0 n7 U" k6 T5 R$ c v# h- F
: G" A4 L" q ? b3 p4 ^ Echo Spacing | 5 k: b9 {4 _( x$ D% i
+ J, u+ @& O' I" w2 e' i
Echo Spacing |
! M- j ]( m. K( _9 w
# J' A) @! _+ u; ~|
+ b1 \% I! t' r0 Y( O1 ` Repeated Measurements |
, X- E0 V: R4 Z
: s7 p" n4 m0 H% W Acquisitions, Number of Averages | % @ b$ ~7 M& T' j
0 O4 n! S/ [: s, i- G5 M3 @% W6 g NEX |
# p, y' O, {" X R ?! J4 g
4 ?' t" B* H+ ]1 l
| ( p h1 {5 D+ b: z4 |
RF Pulse in Gradient Echo |
! H# w+ M( ?! f5 L/ p9 N% @
% ~) t- X, P8 W, {; h d Flip Angle | 2 a9 R8 B8 u# ~8 K: J; s! X2 R/ l
b7 L* a# v$ Q; p/ {6 v
Flip Angle |
3 c# Y: l0 t; @" y' P3 k' \3 ?) `" D4 X
|
- n; O8 @9 h6 f7 E d8 n% p Scan Measurement Time |
$ ^0 U7 E6 J) A% ?3 q- T0 d8 q7 d9 J
Acquisition Time, TA |
9 b! ?3 b8 ?2 X) ~$ _6 |/ K/ j8 ?5 E' ^0 G7 x2 C
Aquistition Time |
. e( e6 u+ n/ a5 ?$ v0 c, L, Q: f
, G. _) y& k/ A2 D$ L1 M| 2 ]% r2 q$ b' I8 V* v
Spacing between Slices | 7 a5 X! t, d& T* a
5 N% v" \1 R2 v: `& ?0 c$ Z
Distance Factor, In% | ' i" _% ?7 P* ~( b& Z) G. n
w7 I/ F; ~/ D/ P& C6 B; s" D& i Spacing |
+ N0 H, _' L3 c. M9 w d
6 s* [5 `+ b1 p0 w! k| - E( V9 h& t# |3 j+ x! W( |+ b
Shifting Slices Off Center |
/ L' G8 [2 \$ N6 [/ a/ n
) J% Q F1 ^. O" U, a5 Z Off Center Shift | 6 |: R) E+ S0 Q3 w4 W! m/ P
% E6 Q, @$ E6 ]2 Y8 K! P Off center FOV |
8 F( R1 a R! T# ^" Q* a: u: }# l6 ~3 Y$ E. j$ N% e: B
|
; S% s; o8 d# @* t# F Field of View | 3 U0 \% f; F2 v, }3 Y
! a; D& ]0 y: B) l" p- N
FOV |
7 w) z# ]# D6 Y/ Q) `6 a2 a
5 @, ^; F: w0 { FOV |
& x- @7 l# O. Z6 o, G+ j% f$ R+ Z* }& | T
| ) D1 g- w/ g) g/ F/ D( H$ E
Non-square Field fo View |
u$ b5 u4 K( u7 e" U7 v# D1 ~; r% I; z. Q' I( }
Rec FOV |
/ ]. v! H" l! S1 b1 C# [
1 m# s5 X) ~1 G/ { Rectangular FOV PFOV |
1 M, Q2 v; u, U+ t8 P% |2 r% x' u' F0 F0 W+ a7 M+ s& ?3 m3 V/ C. \
|
2 D( C+ J0 m$ J! Z. X) U& V' J; { Bandwidth |
( X$ `) S& A5 J `0 h* C7 c- c, Z$ J) L$ k
|
$ k1 Q" h% h( W9 X
2 }- N; R: ^) ?" g& Z' y0 x* x Receive Bandwidth |
1 j# e6 i3 ]& X0 i$ R
' Y1 F/ e1 W: _
| / N9 m- D. D% i! {7 k, Z% r
Variable Bandwidth | 8 C H) O- }& A+ k
5 p" N6 l, L& Y
Optimized Bandwidth | & h, R5 @4 a" O" P
7 ?. i/ Z/ H! u& L5 S VB |
( I% r; V9 s: S; v4 h6 C$ B! _
5 F: x5 `& e- X |* u
|
1 F& r5 |) a) n' h4 r Oversampling in Frequency | 4 z7 Q7 |0 S' U
) w- h4 N2 m7 a: A: Z Oversampling |
( ]+ n0 ^9 Q% ?, n9 W
/ P) v$ P! a% Z( l" c" [ Always On |
- X/ |# K& `) }8 w
, f) L& ^& r" Q4 {5 m| 5 a6 B# J, f5 t% F U0 k& f5 g
Oversampling in Phase | ) R: _' U7 E2 K: A
+ I" O, |; F" ~- I Phase Oversampling |
( H: w( N3 @- m3 M% Z& f; i5 J
# J( A0 k' O' h: I# O+ h# u* J No Phase Wrap |
; O4 ]$ }1 J; m. Y( b% o
( ` y6 Z s0 S9 }| 9 i k3 i0 Z: z" X* v
Segmented K-space | + U' b) D) J! s
4 O! x" w) o) J9 e4 V+ R+ H
Lines, Segments | . L4 I+ r$ t9 y
2 F Y) z7 P# [$ B% j" l! Y/ h Views per segment |
# B+ o6 y7 L) |" X
# m3 _7 ], r' k7 H
|
, i- u5 P w" C4 I+ c, p" ^ Time Delay/Block K-space |
' j% R2 R6 D# H+ Z* j
3 B4 {" p: ?! z, X Time Delay, TD | 7 b+ Q: v3 X+ w) I
) _3 }3 D! Q: ?' J+ `% F8 Q Intersegment Delay |
! x) r0 _0 _8 q) K. u& g+ F- W
# ?3 D% y/ l- E( c7 {3 O| & N6 v' i( [% u( ]1 W+ a
Patient Orientation Scan | ; t1 S! D" k0 n) a/ I' V8 t0 j
* }/ H' R( b+ K. Z8 @
Localizer, Scout | - O8 u# n/ ^! i, c; M+ m
! s- w1 o) @8 T* E, g) Q* q' X Localizer |
! I% N0 \6 ]3 a& ~9 C
- h/ z: E- i5 E|
& C3 d; P1 f { Half Fourier Imaging |
A& K, C0 ~, C3 S% s* k( j7 Q4 i B5 R3 E8 N
Half Fourier |
3 V' }2 O; a E/ V0 W' U' X- p/ |6 g0 t9 V- u
1/2 Nex, Fractional NEX |
; z' {1 u- f3 O3 {& A4 k G
. A+ H, F6 Y" x* x|
# P* X: v, j( L/ N. r. \. g: | Partial Echo |
1 N: { m/ p1 V4 Y& r- R
3 @' u7 E9 R% ?% u; P) N9 M6 { S Assymetric Echo | 6 R, K& a4 p+ _+ {
1 k% V% G# j8 X" j. K% c9 G Fractional Echo |
0 E. q2 P& X) i3 t
! Z9 S- p6 [3 b& ?- d- _|
" O( n9 T& w1 K7 R: a" S: ~" L Gradient moment nulling |
6 |" p7 R3 @! E. j `! ^8 E/ a+ e- G% J/ B; z( Y( K
GMR |
; ]1 S0 A8 {( P+ ]
$ U7 e4 @6 v2 [& _; H% y* K; V, N Flow Comp |
- p3 v+ a1 V" Q W% B
- e6 d9 a( I( X G6 X: ~
|
4 n9 u1 g; H; W) h" G2 K4 q Prep Pulse - Chemically |
# }; N9 y" O- g+ R$ |6 a! e4 M0 R
7 R( E" N9 \; a- N5 W FAT SAT |
# U- n) r' p8 D0 ?" u! Z; F4 A- F" B+ j
FAT SAT, CHEM SAT |
' m2 n( O' e, O& e w% W4 `, P
! G: A) r0 |! |1 w) f8 B
| ! ]1 ?1 L6 K3 l1 O
Prep Pulse - Spatially | 7 K* z7 h( Q: C/ v( b9 N
. A' R: Q0 U7 A, b. v* I, x Presat |
: s5 s; r5 a0 X3 i' H( F: K9 z3 f5 P, ?$ w' \
SAT |
, z& s# S$ _ k, U5 P) s
6 Q, S) w+ b/ S3 Q7 a! d3 N3 \& p|
6 a" R6 l- X0 p. V+ b$ f, u- I8 I Moving Sat Pulse | 6 V; M. Y( V6 V z* {( D3 d) A
$ N9 {6 n! U* Y, P
Travel Sat |
$ E. w$ k3 g/ Q* T5 F) |+ [7 Y7 k$ x
Walking Sat |
Q/ [' Z/ ]% b) k8 t) y' a2 n6 w1 W# [" m' Q5 e6 k
|
5 H% x, l7 K( t$ m7 f( K Image Sync. With ECG | 3 z1 F9 W: g) f# {, t- s
# X2 o) r5 ?+ o4 {0 i; p3 K8 v9 p- O! `- I ECG Triggered |
R0 P% q# O+ _2 U8 ^8 y7 @6 ]# g3 W O/ s7 j3 u' \4 e
Cardiac Gated, Triggering |
( n7 ~! }/ J3 {8 A
# D* s U* Z: X3 P/ _2 {3 j4 k|
" w, b* \! h9 z* X/ k Delay after R Wave | , ^6 k6 C9 ~" g% m, n& u
) ~, X. p) \ {2 T8 @' z9 ~, v Trigger Delay, TD | # }; L1 v$ l. l9 }' ~+ f; l
' M3 B. Q: @. q) E$ x$ x8 H# u
Trigger Delay, TD |
! Y/ ]5 y. p+ o$ O- F+ d
6 i; g X1 G4 i# c9 s" T6 s/ w|
3 M( o1 o7 S. a Respiratory Gating | . P2 E" V8 p* g+ v8 P* @( z" i
, Z3 `6 c. F7 M' }, U/ o
Respiratory Gated |
( E' H9 y+ ^4 s9 s5 ^& ~
4 E4 k2 {! I" |8 R K" p' A Respiratory Comp, RC, Respiratory Triggered |
发表于 2009-3-16 22:19:02
