|
|
8 t0 m: G/ U9 X) r3 ^( g" o, w
5 D6 ?3 W5 u, q% p4 j% {- Q5 v! d' l0 X3 N' l# \! {* Y# d
| 8 g+ ~4 r) Q: ~7 L
Sequence Type | 8 K. D' c7 T4 {& d5 e( Z5 ]
* p$ Q" { V H0 A) U
Siemens |
# a; ] q) d" \! r0 p/ t. U! m$ \: k
GE |
2 q' d7 Q4 ^9 }0 N! r6 b, V( R2 ~9 k# B5 K. P. c3 N1 L) h
Philips |
9 W) t6 Y9 C" U5 X8 T7 R; F$ }9 V& p. W* }
| ( ]! W4 ] p' i' A0 H2 j6 k
Spin Echo | , C% ~& B$ |& F1 j
& m/ y: i8 ]) m* R( Z# N SE |
9 K4 d, i% h- O/ e! ^& u% s# H& Y) ?7 T& w& Y" Z3 y
SE | " @9 D+ q. Q# x! o( h+ ]6 h* Y/ T
. k8 f1 n- a4 X6 E- I$ x% E& B; b SE |
, ^4 i) b# {5 f P: v
2 p5 J! y2 ^8 K P2 k|
4 m7 ?! [% m# e9 `# n7 |& i2 B Gradient Echo | ( D5 ^; |9 h! X2 G M9 `
$ H! y \8 K; ~/ u( H6 X1 Q3 L
GRE | ! ~9 f# t+ m: T, O' i
1 r" [4 t X, K. X0 c. o GRE |
' w6 u, c# b7 q; H9 U: a
# g& S ~: X8 Y( F* } Fast Field Echo (FFE) | t; H; N5 H4 D* I! k" ^
7 e, K6 m3 z: }; {% c
|
! H4 E5 ^, l" f/ s+ Q Spoiled Gradient Echo |
3 R2 E' [$ \$ e" v* y5 Z2 c0 ]0 O6 g* |0 C. _7 ]. o
FLASH |
& B6 `8 U: l6 }, @ @8 M
- g5 K7 x( `' ]. ?1 J SPGR |
2 N% V. d" z3 L; Y! Z4 s, }( d2 |6 A
T1-FFE |
* d4 w" k: c3 D0 i) R) |
$ a9 Y/ Y- W# G' `8 B0 |# O# f1 e|
, T- P- F3 ]9 q# t2 r8 N: ^ Coherent Gradient Echo |
( B2 [3 z2 P$ ~5 Y9 R# y- D
1 f6 f7 X& M4 U- X. X9 c FISP |
6 i d* V/ I9 U$ ^4 y Y2 A3 U. \5 o4 X. `# o
GRASS |
! I0 c! L* o1 q6 `7 p7 F3 C8 q2 h* M0 J& M% K1 g4 `
FFE | " m% D0 l1 ]' O6 ^$ d" X
5 A( l5 G" B7 k N
|
: }: c5 `- k/ D" O$ A4 } Steady State Free Precesion |
, {/ [' s, g. V8 e; @ a6 }+ S! r0 _( U, z
PSIF |
7 l( s) P+ T4 }& Q7 Y. y" j
1 n/ T7 X6 _) \& s- y& F/ e SSFP |
% j1 B+ q. G5 R$ |2 N2 e1 P; o6 q( Q" w2 O2 L
T2-FFE | , r, r3 H7 y/ U5 H* Y6 d
9 A6 c4 o/ S8 B$ y5 B. N4 |
| - T ?2 `' t4 E# V6 E
True FISP |
7 b: m* e A# k8 p- A$ F9 a' a0 b6 B
" t6 r& W9 V: Y+ J. e TrueFISP | 9 _5 T6 b, U Q( k6 d2 [ P" {" N% [
5 j8 D! n0 o T" L1 l" D FIESTA | " u3 H# J& t s I" Y
" E: R+ s6 l5 f: z Q Balanced FFE |
& m, ~% E5 M/ W! U- S; w/ f# y& N6 H, X" W. O8 F
|
4 l3 T1 T! N9 @; H% q; C True FISP/Dual Excitation | ( E1 n0 y7 z# K% \- i m# q
3 _/ b+ L. M3 ]% O" P CISS | " A% @8 o& x8 A( h( }6 q
/ e. `0 o( p1 m$ e& R/ g FIESTA-C | 5 \! j% T8 x1 \5 |- K
# o& M/ `3 p4 P- ~( a; k6 Q
- |
+ P# X+ P* @/ e, ~8 i$ o1 Z# |& f! V, S9 I
|
. i8 {& `7 k- m8 L6 v1 F. M Double Echo Steady State |
3 D5 O0 W; ?9 |8 W4 l5 F- e
6 h {& e/ R G6 \$ P& {; C DESS | $ f/ ], v7 o+ J
, Z/ x- P. a7 [! T% S8 X
- |
7 }3 b- @) l, ?8 @( P z
' Z+ A# `/ P* R( \' Y* U - |
7 C k/ U2 U7 b* b0 Z4 x9 d! S+ \+ g2 D; e
| 4 C7 n0 G2 A% w+ g G' T5 h7 S
Multi-Echo Data Image Combination | 8 x' H7 i5 V5 F1 D7 P9 M0 s& y, z- `/ M
# ^6 K) Z/ J% h9 C+ ~1 d
MEDIC |
+ _! c( z" K& J1 {* a: V. W$ |' i
- |
( x* r1 `9 O1 T! I& U5 {- f
4 ~) p$ q$ S$ Z: s4 c - |
' ~. y) C' o' ^$ c
: C& n$ I" x$ k+ m" M/ U|
/ K, N) Y9 j) d; v Ultrafast Gradient Echo |
3 z8 g9 x/ t0 T n9 g# J# M6 f t/ j* q- r6 q( M; Y) V
TurboFLASH | ( X9 v4 ]% l% p/ _1 G' y- N
) c2 Q3 j* k4 ]. Y+ H/ g Fast GRE, Fast SPGR |
; C3 e( X( e) O7 B
+ W% N0 J9 C; M* u) ]3 P4 f6 B& J, \ TFE |
8 c" j* P. ?- N: T+ U5 k! F
8 v; P( g3 O$ [6 j: D|
9 j$ j2 }9 k. ?0 B- S; ~$ s) g Ultrafast Gradient Echo 3D |
# }4 e+ r# i+ F5 A4 L) u, S
, h5 a; b& B; x: M MPRAGE |
1 W, P- v4 _3 A) m" m5 } E3 M4 w. E" ^% M
3-D FGRE, 3-D Fast SPGR |
: A, Q2 h* L4 `0 N' z$ J% |% O0 R7 J* x$ I$ g
3D TFE | # }' G; W! s* d* Y; w
9 V$ V( o2 L9 D6 k$ J- v
| 4 x' I. o% a, h2 m* }
Volume Interpolated GRE |
6 O1 X& [8 k- L; h+ a- K, M# Z" l7 C' T0 S5 Q2 z
VIBE | & j' ~; ]! H* o" K0 b; Y0 W8 I
5 ?% Q9 d7 S$ `( v- l1 j
FAME | / G2 M5 y( y# u$ C
2 _. s: }% z1 @ THRIVE | 6 N# l: d7 G6 R) a: z6 f4 [, `
1 J& }: D& d9 D$ d0 l2 M|
: K3 _9 C7 s: u- P1 {# s1 Q# z8 Q4 g Inversion Recovery | 2 l% |+ p; o4 X( w/ Q9 v) ?+ h
, D' d$ p g$ p
IR, TurboIR (TIR) | % A+ \& {! a$ i9 F/ {
, f. E& Q: H* P0 e
IR, MPIR, FastIR | ! J, d4 u6 u; @+ y
2 d, \/ i7 k3 d$ w" o, w
IR-TSE |
1 C$ ~( F% `6 X! x6 j. H F+ t3 S4 K) n/ Q$ z# S2 A6 s* A, c
| 2 _" n0 P1 \3 I& {6 T
Short Tau IR |
( B% u: x; u1 J% [8 |/ y+ \7 X" [3 g" a
STIR | ' u- ]! @- D7 F* V' S! M
6 ], C3 b) G4 p4 K1 q
STIR | ! w% I) Y$ i1 q( z: m+ A9 i+ \7 i
e. w" l& }( J6 {8 @
STIR | ; u0 S; R: t" Z) B- D" f
. g3 w# V1 ?/ C4 O2 g' N, p
| / C$ u1 m% |" c! _$ Z* s
Long Tau IR | & P; G( C8 Z8 E' b7 ^8 y
4 m: F1 e7 }5 x7 V
Turbo Dark Fluid | , t( W2 Y; ]* @1 I
% r6 |' K$ K7 L) |" v8 }/ R9 U! u: \
FLAIR | * y' B2 ~/ O' b* Z" E; u
) z" F) T5 E- s6 b3 p
FLAIR |
& K3 |" U+ i2 g" H0 B% F! Q j8 t$ {9 I" v T0 ]
| 4 D4 k# W, k {4 C/ H0 V
True IR |
: c5 g$ _9 k. e+ K' j0 C+ v' r& D, [( L F0 [2 v
True IR |
5 S- J5 z3 O- a. s: u! r! V$ ~
9 c: c5 y, p" Y7 g8 g9 @3 t - |
6 ]2 r) ~. u' M/ I
) z6 y- _" r% I( }& s Real IR |
2 C9 j& f6 R+ Q: b2 H
% M' G" V0 n9 ~$ B| + \! V: e% i2 w
Turbo Spin Echo/Fast Spin Echo | + w8 Y) f' K! I) \
& e- w1 J# U& [
TSE (Turbo Spin Echo) | " u0 ~/ n, t0 g, i
# h2 w/ E4 P. p FSE (Fast Spin Echo) |
2 ^7 {- ^ R, ^ K O
9 u. L" N( M/ h" z) d" n( l8 s: N TSE (Turbo Spin Echo) |
' o2 Z! }# H0 t; o. |' S" H- Y7 o
| ( E3 h0 \/ f# V5 A
Single-Shot TSE/FSE | + R; \5 `+ O K0 H
8 ?% }; L- F- a3 O! W$ A HASTE |
" o, `7 r/ k, h( w# D! X5 o3 @9 D$ L
! m2 i+ G* t1 |5 ?3 | Single-Shot FSE | + i7 b. e; [4 C2 b& R5 q' y; J N
7 z' z8 q* H$ B9 R) D
Single-Shot TSE |
- O* V! v& L5 T# B9 W
) }; i8 q$ t, s) m- D|
+ Y0 z& ^( i, j) u3 W7 C0 Z FSE/TSE with 90° Flip-Back Pulse |
+ L4 K8 S4 V' h$ ]% e$ C8 f( k( c* i7 X6 P+ {# w! F7 w
RESTORE | / s. L( J. Q3 j$ a" m3 K, r! d
# W- t2 Q2 V4 q8 b9 v Fast Recovery FSE, FRFSE | % R& u, B6 a+ _) s; l9 ~; l6 P9 U4 Q: O
, m# Q, `3 T* U9 o, k
DRIVE |
$ ~; P7 s" ~7 q. W7 { T# M/ k3 g' n9 m2 I
| : x K8 N3 K! i
Number of Echoes |
; b! x1 [% `4 p8 w. q7 d9 S+ {- W. Y2 v. T
Turbo Factor | 2 v0 G3 K, H) g" ^* V
$ H, p& w% ^' |" f3 ? Echo Train Length (ETL) |
, A* `; O6 v8 ]( k1 s2 @
3 P3 I8 {+ T' @, Z l Turbo Factor | ' {& A8 H8 T7 b3 ~: Z- N
! A& \$ \5 _. h T* n|
+ ]. }4 }2 E) X" [& T" K' r: A! ^7 s Time Between Echoes |
9 J D; C. o9 ~, _) b! O
, b7 [9 q% k/ E7 T; q0 C) h" @( h6 l Echo Spacing |
& x- g: [: Z, h$ ]5 G0 a' i7 q" e
% u/ z. R# d6 J8 j! P Echo Spacing | + f" I7 i" O+ p0 ]" ?
d* I3 C5 y) U* {
Echo Spacing | ! B" F# M5 v& ~6 |
- @4 c( ]* }( O; P$ {
| $ b( S" F; J5 C6 p- \$ f% a/ c
Echo Planar Imaging (EPI) |
7 {8 X) O5 I7 p+ i2 D5 |% E* s& `
# N1 r# {) d" l- w; i7 } EPI | $ N( D. ]2 Q7 C2 N' W3 v
n0 M8 L+ c4 K EPI |
( p9 n# a. a' x- z. e, \9 R3 p. ~+ ^+ _- ]! H4 n
EPI |
1 u8 |+ p5 x: F `- u" l6 y, H2 i' K7 M& \
|
, l' ?. |: H7 J" ? Number of Echoes |
$ S" C$ ]) G$ l; M! C# [9 Q2 G: B ~- c( Q3 m' {
EPI Factor |
9 @# u1 v% A& P1 |( b2 x. M# a: W: m) F Z
ETL |
/ G6 C' }4 c' L# l5 N# X
, M# s# }3 R3 c! F4 h3 C EPI Factor | 5 v Q( E8 A7 z- M8 F
" n4 ?' e7 {% W2 l; i3 a
|
6 l2 @ I! |! T8 c" X Time Between Echoes | ( _# L( c5 ^/ |# C
$ J8 I7 M* Z2 T. s( X" B' K$ o Echo Spacing |
/ ]/ d$ J7 e: r. T g
5 _& n: K& X) J Echo Spacing | ' d, M. b+ D2 d* z! ^/ L2 t( P
. x% E: ~' N8 z( R6 e( T! Z Echo Spacing |
- F) J# |* n' B/ F
, w( W' _! |2 b# e| . m& g& c- E# O- q! ]2 c
Turbo Gradient Spin Echo (GRASE) Sequence | % H6 v4 w' Y2 w7 O% S" k
5 z* \ N G; f9 W% e TurboGSE, TGSE | ( |+ e u; F# f$ T
2 P! I" P% z$ S3 h - |
! N/ ?7 p# f' K! c) ^
" G+ `9 d# S7 X! [ GRASE |
- ~5 z$ Q+ A) F2 S) z$ G. [) d$ H
- [9 L: \2 m! o. C% Z; M& t|
, e6 @ [& h0 B. Z! o; F% C! H Parallel Acquisition Techniques | : n( B+ X' F6 J$ ?( Q$ s
7 ~' J9 @, C% i8 ^
iPAT |
1 V9 W- U# Q, c2 }
" |4 S. d# T3 P9 w2 ^ ASSET |
0 @ `5 h' I7 u' T
/ ^; k$ l% W+ L4 b4 ` \ SENSE | # ?5 P' E! d4 I1 O* ?# i
! O# K# r% X! B/ U; T% }& x
| ! Z7 {- H! p9 ?. D' A5 C; B
PAT: image-based algorithm |
7 A6 l) r, D7 z1 P& F( f2 v2 r
% ?2 z5 b; v( c mSENSE | 1 ^# @( N) H' j& S
0 u) {' m3 `2 i0 j9 D Z4 w1 A0 r
SENSE |
3 w; b% B, F9 H5 ?) K/ d% u
3 S8 k! i5 H9 F% R+ P; S SENSE |
* O4 W* |; _5 e6 g/ k
- c5 q: i- r0 j. ?) q| & x. ~9 h: y; U) v2 R" ?/ P
PAT: k-space-based algorithm | . S3 _# T4 U5 P4 [+ A, N7 @/ a7 `8 l
$ s4 p7 y( C! s$ y$ S1 O1 [7 A
GRAPPA |
2 k0 e$ c: }' F1 h% f
- O, B& N+ m' ~! q+ @2 t - | T2 J( d' A% n8 e# A& D
0 r# \$ f& R( A1 q - | + G- i2 U/ b) m+ n9 s$ D
8 V- [% R9 H1 [
) ~# A# K$ V/ K( W8 M& a5 u4 J. z) n* `
|
; p+ h& k. ?7 J# H' T# b, s Sequence Parameters |
( a& V5 L& d* y2 t2 K8 t0 m
q1 ]. x1 V$ H+ H4 C|
+ I4 {9 a0 I6 {. O, h Repetition Time, Echo Time (in msec) | 6 u& n( R3 K* V/ {( t$ ^5 l
9 o/ i4 U4 ~+ Q; i TR, TE |
; _% d' C1 G4 `+ ~" T# O% M
: |5 r' S3 a7 Y3 P& Q TR, TE |
( o+ ~) b# F/ Q( c/ ~& [/ @" `1 d
" h# p `% u I TR, TE | ! ^& A* p, i5 x$ B7 X8 S' e( A
' V/ W8 I. ?# Q4 }# D S) x( e|
6 W7 M, X3 M+ [+ @2 k# T& t" ^ Inversion Time (in msec) | 7 l( v; `9 t s! B F8 E$ @" n. ?
9 e' t$ T6 J$ V* B
TI | - k' e, h0 z1 u8 j
# |( V& T4 x' x2 J. Y! z: k8 P9 e G
TI | " X1 r- l" @/ @4 t x
+ u ?6 C8 V1 c% e/ i9 Y% O TI | 4 x$ G) a( G* M* Z {/ W
. s. ?0 q- J5 n! @ s| 5 n, @# t; M2 x8 n
Averages | / Y { q3 T% v% A( x# H( L3 U
* }, d+ L, O& p" m1 z
ACQ (Acquisitions) | / D, P6 Z9 ]! g4 ~% f
; c: Y) S2 f4 O8 o! T4 A/ c( d1 d NEX |
& N& i* ?% G, v( n6 J" b" W8 i1 C5 }" b B
NSA | 9 _0 e$ }# V ?( v6 H Y7 P- n
; G) t' k% O/ y, ~( w$ c|
* T7 A) z; |2 F1 o; r. C8 b$ J Simultaneous Excitation |
O' h T$ o9 ~6 H. m S2 Q# W( K- ?6 B- A8 L( `
Simultaneous Excitation | ; g5 a2 B6 S' n0 n6 r
7 a) t6 a4 d' D+ Z$ V( I( B, X
POMP
; ?" E* ?6 ^3 ~: F+ u(Phase Offset MultiPlanar) | ; J8 h. T4 r9 r( a! {9 Q* @
8 W: [* K' H4 y% v2 p" u/ Q: P - | I& a* \3 E$ A8 Q) i6 Q4 S* S v) e
9 @/ `/ ]; x" R5 d- r+ N; Y# g
| / u5 L% p0 V+ ]- h% Y6 i$ W8 Y$ W
RF Pulse in Gradient Echo | 5 b4 l& ?% _3 l# r0 r
$ U3 _% U; W9 |, i6 N Flip Angle |
- u6 X, W0 I/ ~, F. h. f! M( c; B1 V0 A4 w$ v- |# k* ] K9 q
Flip Angle |
# A4 Y0 p& d7 g7 \2 W9 D- H# P% v
% ] X4 t' D/ O ~6 J Flip Angle | ! d& N* s' F- Z1 g% n+ Q3 V
* ?# f! S; H2 F
| ~# |* R/ a, h- G5 O! l
Scan Measurement Time | 9 Z/ f/ A8 s8 b0 j9 |
: j8 k. X+ C# P7 }4 y# \: a
Acquisition Time, TA |
4 S$ U7 Q3 B7 I# e1 Q
! x1 o4 O7 y! `$ P Acquisition Time | 4 I* B2 h- A( ~1 q1 y. b
, m9 ] F$ u3 E7 |6 e: p! S/ P Acquisition Time |
* Y1 U: R: {, f9 q. E/ \
+ p" @" P( N* R- O3 p|
7 D! V& @# j! U, R7 H o Distance Between Slices | ( A& k+ k; j: n- C4 d! E) e2 T' }
2 ?9 g- ?9 b+ `. q, i1 U Distance Factor
4 n4 M {+ v9 I5 ^2 r& c(% of slice thickness) | ! |! n# A2 z1 X
! S- v5 [: j/ G" P' r# w! t Gap |
% W6 W8 o" ?) E. o% i
+ z! g) E" P6 L1 s; g Gap | % i0 c. \; `! b2 J+ O- W
: c" q6 [6 F5 I4 V6 U| ) A6 u4 X6 \* C8 m: d- V
Shifting Slices Off Center |
9 d5 Q3 m. U5 T" ]7 i. E1 q C
: b1 \$ E7 B2 g& ^ Off Center Shift |
" J( D; ^# v* H7 l1 V+ b( H# u
1 ^/ } z& A8 Q, P Off Center FOV | & ^: o9 Z$ {' B9 ?9 t+ n8 s
/ [, P6 O& T8 L/ _. w$ v
Off Center FOV | 1 F$ E& H3 l* g( m* l' \' [8 G
E/ q0 Z+ F! \5 h' Z0 L( [8 m
|
' f1 s d2 G% z4 ]% T3 m# H5 N Field Of View | / k, @5 Y5 m8 _& C6 E9 N
& a& ^6 v( V# x' `( F FOV [mm] | * s: T% k2 ^% ?
& W K$ V+ u) k; d
FOV [cm] |
) H) g/ [9 B7 L3 z& S1 q8 Z5 V0 u! K) A) L ^% n
FOV [mm] |
8 \. ?: X8 V: o1 T
' W( {1 h3 @$ V, n/ a6 O|
]8 @: e( r/ t+ z Rectangular FOV | " T! N* a+ L% O+ A8 f; ]& L* y3 F7 g4 X
5 Q- A, |9 {) G) x/ ^
FOV Phase/ 4 D7 \% f* ~, u) B8 @2 I
Rectangular FOV |
/ }- [) \# N' V3 X5 c) u* M. J# n$ Z
Partial FOV (PFOV) |
! O4 Q$ r8 X/ E$ [; K8 Y2 L w0 P. `+ y3 t" [6 |; g
Rectangular FOV |
* p3 F& Y5 P6 D J6 u$ f. a
. d L' S9 Z' R3 D3 z, F c3 v2 Y* \/ l|
; Y8 \1 X Z2 J. | Bandwidth |
" r! z& [, h% N0 J9 r) J+ R4 x- w
/ W, V& ^( V8 `; \0 H; t8 G9 W Bandwidth [Hz/Px] |
3 D$ n) K X5 X. Q( M7 _7 g5 p: M( F7 O, P8 u, y- P1 V9 G2 g4 ~
Receive Bandwidth [kHz] |
6 i! g* C# z" E/ Z
0 s5 e4 o/ r0 x3 J' I- g3 X$ I6 i% f Fat/Water Shift [Pixel] |
* H9 d5 Q5 ]% {+ @- I. i. v3 q6 C8 _- m
|
" `+ A4 z! M" j% p4 N( G& p Variable Bandwidth |
9 u' {" Z% z+ i. X( D5 n3 \" L7 \
Optimized Bandwidth |
3 h* ]9 j6 T% j0 M8 q
. _" |0 Y5 _; Z# H( b" F+ O Variable Bandwidth | $ N. n3 R9 V1 X+ @' Q
; h; ~! A! e9 G, z2 E+ v Optimized Bandwidth | G* W* L0 `3 B4 w- O
, Y1 L q! b, U- R. X| % \; l- i9 O% i$ I+ _
Frequency Oversampling |
- W3 d3 w E( a0 j3 }# u+ ^
. u+ z% M5 D' U$ E: D Oversampling |
U" w& |; l* M8 r( A0 `! i, u6 s0 X8 X3 ]
Anti-Aliasing | * D- Y3 | C8 r# T: `! x
. ?5 v `$ A! F' a+ [. W' I" \+ ?
Frequency Oversampling |
. b2 U) L2 l/ X5 H$ j8 Q
2 ^* q8 i4 i! @' R6 `1 ]9 u& t| " A, |/ L& t6 c4 r" z M+ l
Phase Oversampling | % v8 `+ |; ^1 R; P* B" N3 ^, d
8 `% h* d# v: T! \) [( B" k3 o; t Phase Oversampling |
* c) }% \3 }- x; v0 c4 x. K
; A6 R# q V1 X7 K7 E1 o( P No Phase Wrap |
# e4 h0 g( H7 ?- h
; P9 A! q/ {8 a% P, i5 [' Y Fold over Suppression |
+ G6 T4 b/ o1 e' t. b
, d( F9 e. K- t3 O4 E7 Y& t|
& e5 x7 j `! h. ^ Segmented K-space | : |: m. m- ^) }( p$ h1 r% P; P
/ N1 ~, `& {0 m; b
Lines/Segments |
% G5 ?5 U L, H% D1 s. f1 X P- R7 o8 u# D
Views per Segment | , m) Z! s4 m! k& f/ I, J$ O h
) z& Y8 ?3 V9 V$ u Views/Segment | ( D2 E+ k5 d5 m; @& r: m; O
5 F( F8 G. \* b
|
% e7 Q# A0 A j1 c9 C- R' u Time Delay/Block K-Space | M2 F3 D7 R- N2 C! K. U2 `
# o9 C6 H; x4 ]# G6 `
Time Delay | 0 o8 H7 \' R; L* e, {! K" t; v
3 p) Q! x, G: d$ H# k
Intersegment Delay |
4 y& z. C) _$ i
# O1 _% M" n$ t, P H TD |
9 H7 F! g# [( v5 a1 X O1 f! J4 S
! v& f) z; R) D* g| ( F" S0 F3 S/ p9 V
Half Fourier Imaging | % y F, q$ _- V& {3 E1 q
2 x( U7 s3 f2 S$ @4 R
Half Fourier | / X7 M, L+ a6 h$ A) v2 n
# @. o; c V, b! r- L2 A 1/2 NEX, Fractional NEX |
3 V( Q7 W1 F7 ^' a' H3 l; o- P$ w H+ U! A* [' a- S
Half Scan | ( ]0 @% q2 ~( f2 q
# l1 T: `2 M& C- X. j% Z|
: W$ S8 [) F$ i+ H Partial Echo |
7 W+ p- i% I8 H$ O% Y8 j6 y6 w4 C+ B, F H3 j
Asymmetric Echo |
- m& ^. I+ [% o( p+ u' E q! ?% j8 @% l3 k5 }
Partial Echo |
6 N4 g! [1 l' c: M x
* M* y# A3 }! P Partial Echo |
$ M: W. @( \+ t [; w% Y- P5 L' M7 ]! b" q8 J
| . Y1 ]' U. J. k D. L" I# J* s
Gradient Moment Nulling | * K7 r0 d& H- w/ a3 m; N3 K6 v
4 K: }9 p @8 T! o Flow Comp/GMR | ( K. @5 U* M4 T0 m. R
( {5 J6 h* r) u Flow Comp | + w7 \4 D# r( y
4 l7 o( C, @ ]& _3 C$ x1 u) N6 _ n
Flow Comp, Flag | & x+ \' C$ {0 t! S
6 f2 N. G; P/ L/ A& [9 Z' x
| - d* I* t& p( J) n7 v# Z$ i5 f7 a
Ramped RF Pulse | : [/ b, e, B; d7 E8 ^ ^' i
8 T5 R+ E) Q/ R9 h+ d; k. N) X- O TONE | ! ^3 b' R2 [5 `9 W$ _
b9 g! v9 o4 h7 n5 r9 w5 k1 ]' i Ramped Pulse |
9 g# @# Q: h# D1 v3 ^
" n$ [$ p1 M" E7 i+ Q, s N. N TONE |
S$ g& g6 ~+ `/ E; d- h+ n& b/ V
|
8 S5 b- ?+ M& g5 S1 Y" e& f; V Magnetization Transfer Contrast |
6 Y( F: [3 a8 I! [8 N8 W. W+ V
- G( a* g1 ?! M9 B1 O MTC, MTS |
6 ?5 a/ Z- a% H& k' i
! ~3 y w5 N. n9 ]; p) B( F MTC |
/ y+ o0 i5 p4 L; `' Z% y8 a/ e6 J8 e+ W
MTC |
$ N5 [3 d8 V8 n6 ^; B& X+ k# O; C4 Y0 v! Y! s1 C3 ]! T% s' A$ k
|
4 r3 z- }$ a5 {3 J! q6 m Prep Pulse-Chemically |
/ i8 I L7 j5 ~
' d& O, a% K9 O' K1 G" p Fat Sat | 5 `9 [; R5 P; a: \2 ~( ]
5 d' f& \# |. E) s0 r. {+ X) B Fat Sat/Chem Sat | % f5 \$ v0 ^/ J9 X i- `
4 |/ e- I- e0 {0 e. h, N2 ?; h- E
SPIR |
* M! D" k- d" a7 o$ X- o! X
% B4 c0 O3 Q, z: R| ' J! A1 x% X; w. w/ h+ ^
Water Excitation |
9 u* N9 ~( c, o2 D# g( p0 G8 ]; R# ^& w3 ]3 X; c" S
Water Excitation | 6 D# }: ?2 R- O2 v! s: A# o$ ^
" C$ w# k4 u3 w* ? - |
; w* h# R" i/ ?& F2 J/ l" ?
, u' O& _3 Y+ p Proset |
9 W( j# H: x5 a/ u" L A: ^: Y9 o; q7 [+ x3 G' P; I4 g$ a0 Y
| 2 A& n( Y2 q3 |$ v- B
Prep Pulse-Spatially | 4 X4 U( T! C( j$ t& O+ d$ W
$ K! L6 i- r& b3 _' R! \3 r
Presat | . A! g, i! o/ g! c
7 B+ M* t# Z: h7 u2 u3 f
SAT |
- n9 Y" T9 ~, {
4 e% c! x. Q4 ~. C2 w REST |
0 E: h2 }- d6 _6 e& @$ d% |% t) s5 e
| / o* u ? U3 f: o* m1 Y* T; B
Moving Sat Pulse |
% t6 G9 S' @) K* O5 N) V0 P \3 d: H! C
Travel Sat |
- O9 X- e# c: P
0 {( \) Q) S4 H; d/ l9 c$ m' v Walking Sat |
7 A) A( F' g7 ~1 M, S2 D
: r8 X/ B* L8 ?; O1 g Travel REST |
% a4 G. B- H5 J# E% z2 Y T
* u F; g# I8 W9 c' U: {6 Q|
# w. z4 W# j9 a2 A4 s& N5 `' k Image Sync with ECG |
}. d3 d* l: \( J7 }5 Z
# E3 ^- ~. x: q, y6 } ECG Triggered | 0 E1 L# B- Y; K3 u- u
# R C! x A1 v* \& M Cardiac Gated/Triggering |
8 h' @. M7 w; L* o$ l9 {% J8 o9 f F6 I+ s
ECG Triggered/VCG | & _# \" G- b; w' I5 L
: `) H. h4 b+ m6 g
|
$ A: d1 H7 ?/ V Delay after R Wave | ( I/ J: O' i: V; ^5 g- V0 X& k
, c, p5 l# N/ c) V1 K! r) i
Trigger Delay, TD |
( c" C5 ^ @4 N
4 u% a* a& d) S/ T Trigger Delay, TD |
2 G: w4 e( |! [5 O
8 |* W$ ?; C% D2 \1 e% u Trigger Delay, TD | " \! H: x) u1 i" _3 s6 L
+ K+ I$ _3 _- A. H|
2 n8 b% Y0 N: C% W; F- c: ?; P$ \$ ` Respiratory Gating |
7 R. Q' F3 {7 m
1 p/ M( P. c( q3 t9 v5 o8 v Respiratory Gated | g! [1 h: n2 N9 k
7 {! ~6 E- w& _# x* z
Respiratory Comp | 4 v% ]( M& ?: v! @& H6 z
0 A2 C7 ]8 l1 D: U, J* @ Trigger, PEAR |
# E+ C# _( Z" ]+ J, s+ O3 b/ P# t7 p: ~" J4 f# x" e
|
1 D) `* E+ S1 u' A0 C Patient Orientation Sequence | 7 G+ N/ Z( I% b. g, |9 i: C: ~
; W. P% B! ?9 u9 }" e+ I Localizer, Scout |
9 ]" |, [5 _( @; g. L; ~; U/ N" W7 X- s
Localizer |
3 K7 d0 {. a5 d& L) J I0 }5 B% H! }# [5 F" E# V$ ^) ]$ |
Plan Scan | " E; |5 j Y8 k3 ?3 m" F' C& c. u' r
& ^! C% C V8 Z
| 1 |1 s( S+ S0 q* K* x1 ^7 v8 j
Contrast Bolus Timing/Visualization |
' |( C6 @$ s2 k( f2 K. \# T; |4 g# V0 {( A
CARE Bolus | / u. n+ ]: b* G' d/ `
$ U, J+ `. b$ V1 D! ]9 @7 L4 l6 o Smart Prep " g4 I6 X% x1 C4 @
Fluoro-Triggered MRA |
! [) d1 \, \1 n
# J5 q. S, ?3 q' q3 L BolusTrak | 本转贴仅供本版学习交流。作者若有疑义，敬请告知！* R; l# \- g" G; Q/ T, I0 _5 t
[此贴子已经被作者于2008-6-5 9:37:51编辑过]
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发表于 2008-6-5 09:19:41
