Vendor MR Acronyms Conversion

MRI Acronyms

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 Vendor MRI Acronyms Siemens

GE

SE

SE

GRE

GRE

FLASH

SPGR

Coherent Gradient Echo

FISP

GRASS

Steady State Free Precesion

PSIF

SSFP

TrueFISP

FIESTA

True FISP / Dual Excitation

CISS

FIESTA-C

Double Echo Steady State

DESS

Sequence Type Spin Echo Gradient Echo Spoiled Gradient Echo

True FISP

Multi-Echo Data Image Combination Ultrafast Gradient Echo Ultrafast Gradient Echo 3D Volume Interpolated GRE Body Diffusion Susceptibility-Weighted Imaging

MEDIC

MERGE

TurboFLASH

Fast GRE, Fast SPGR

MPRAGE

3D FGRE, 3D Fast SPGR

VIBE

FAME, LAVA-XV

REVEAL SWI

Dynamic MRA with k-space Manipulation

TWIST

TRICKS-XV

High Resolution Bilateral Breast Imaging

VIEWS

VIBRANT-XV

IR, Turbo IR (TIR)

IR, MPIR, FastIR

Short Tau IR

STIR

STIR

Long Tau IR

Turbo Dark Fluid

FLAIR

Inversion Recovery

True IR Turbo Spin Echo / Fast Spin Echo Single-Shot TSE / FSE FSE / TSE with 90° Flip-Back Pulse Hyper Echoes 3D TSE with variable Flip Angle

True IR TSE (Turbo Spin Echo)

FSE (Fast Spin Echo)

HASTE

Single-Shot FSE

RESTORE

Fast Recovery FSE (FRFSE)

Hyperecho SPACE

Number of Echoes

Turbo Factor

Echo Train Length (ETL)

Time Between Echoes

Echo Spacing

Echo Spacing

EPI

EPI

EPI Factor

ETL

Echo Planar Imaging (EPI) Number of Echoes Turbo Gradient Spin Echo (GRASE)

TurboGSE, TGSE

Motion Correction 1D Navigators for Cardiac Imaging

1D PACE

2D Navigators for Abdominal Imaging

D PACE

3D Prospective Motion Correction for fMRI

3D PACE

3D Retrospective Motion Correction for fMRI

3D ART

Motion Correction with Radial Blades

BLADE

Soft-Tissue Motion Correction

BRACE

Parallel Acquisition Techniques

PROPELLER

iPAT

PAT: Image-based Algorithm

mSENSE

ASSET

PAT: k-space-based Algorithm

GRAPPA

GEM

Integrated Calibration

Auto-Calibration

Self-Calibration (with GEM)

Separate Calibration

Turbo-Calibration

(Calibration for ASSET)

Multiple datasets calibrate each other 

Navigators

Self-Calibration

P h i l i ps

Hit achi

Toshiba

SE

SE

SE

Fast Field Echo (FFE)

GE

Field Echo

T1-FFE

RF Spoiled SARGE, RSSG

Field Echo

F FE

Rephased SARGE

Field Echo

T2-FFE

Time-Reversed SARGE

B a l a n ce d F F E

Balanced SARGE

Tr ue SSFP

TFE

RG E

Fast FE

3D TFE

MPRAGE

3D Fast FE

THRIVE DW I B S

B ody V isio n

(Venous BOLD) Keyhole (4D-TRAK) BLISS IR-TSE

IR

IR

ST I R

ST I R

STIR

F L AI R

Fast FL AIR

Real IR T SE (Tur bo Spin Echo)

FSE (Fast Spin Echo)

FSE (Fast Spin Echo)

Single-Shot T SE

Single-Shot FSE

FASE

DRIVE

Driven Equill ibrium FSE

T2 Puls FSE

Turbo Factor

Shot Factor

Ech o Train Length (ET L)

Echo Spacing

Interecho T ime (IT E)

E c h o S pa c i n g

EPI

EPI

EPI

EPI Facto r

Shot Factor

Echo Train Length (ET L)

VISTA

G R AS E

Hy b r i d E P I

Navigators

S E NS E

R AP I D

SP E E D E R

(Calibr atio n for SENSE) / CLEAR

(Cali br ation for RAPID)

(Calibration for SPEEDER)

3

 Vendor MRI Acronyms Siemens

GE

Prostate Spectroscopy

3D CSI

PROSE

Breast Spectroscopy

GRACE

BREASE

TR, TE

TR, TE

TI

TI

Average

NEX

Simultaneous Excitation

Simultaneous Excitation

POMP (Phase Offset Multiplanar)

RF Pulse in Gradient Echo

Flip Angle

Flip Angle

Scan Measurement Time

Acquisition Time, TA

Acquisition Time

Distance Between Slices

Distance Factor (% of slice thickness)

Gap

Shifting Slices Off Center

Off Center Shift

Off Center FoV

FoV [mm]

FoV [cm]

FoV Phase / Rectangular FoV

Partial FoV (PFoV)

Bandwidth [Hz/Px]

Receive Bandwidth [kHz]

Optimized Bandwidth

Variable Bandwidth

Oversampling

Anti-Aliasing

Phase Oversampling

Phase Oversampling

No Phase Wrap

Segmented k-space

Lines / Segments

Views per segment

Time Delay / Block k-space

Time Delay (TD)

Intersegment Delay

Half Fourier

1/2 NEX; Fractional NEX

Partial Echo

Asymmetric Echo

Partial Echo

Gradient Moment Nulling

GMR / Flow Comp

Flow Comp

TONE

Ramped pulse

MTC / MTS

MTC

Fat Sat

Fat Sat / Chem Sat

Spectroscopy

Sequence Parameters Repetition Time, Echo Time (in msec) Inversion Time (in msec) Averages

Field of View (FoV) Rectangular FoV Bandwidth Variable Bandwidth Frequency Oversampling

Half Fourier Imaging

Ramped RF Pulse Magnetization Transfer Contrast Fat Saturation - Chemically Water Excitation Prep Pulse - Spatially

Water Excitation Presat

SAT

Travel Sat / Tracking Sat

Walking Sat

ECG triggered

Cardiac Gated / Triggering

Delay after R-Wave

Trigger Delay; TD

Trigger Delay; TD

Respiratory Gating

Respiratory Gated

Respiratory Comp

Localizer, Scout

Localizer

Moving Sat Pulse Scan Synchronization with ECG

Patient Orientation Sequence Comprehensive Cardiac Tool Contrast Bolus Timing / Visualization

BEAT (D / 3D)

CARE Bolus

Smart Prep; FluoroTriggered MRA

Competition product descriptions, comparison and specifications contained in this document are based on interpretation of available data at the time this material was being prepared prepared and may require independent verification. verification. Specifications have been obtained from competition brochures, websites and other independent published sources.



P h i l i ps

Hit achi

Toshiba

TR, TE

T R, TE

TR, TE

TI

TI

TI

NSA

NSA

NS A

Du a l S l i c e

Q u a dS c a n

Fli p Angle

Flip Angle

Flip Angle

Acquisition T ime

Scan T ime

Acquisition Time

Gap

S l i c e I n te r v a l

Gap

O f f Ce n te r F o V

Of f Center Fo V

Phase & Frequency Shi f t

FoV [mm]

FoV

FoV

Rectan gular FoV

Rectang ular FoV

R e c t a n g u l a r Fo V

Fat / Water Shif t [pixel]

Bandwidth

B andwidth

Optimized Bandwidth

Var iable B andwidth

Matched Bandwi dth

Frequency Over sampling

Frequency Oversampling

Frequency Wr ap Suppression

Fold-over Suppression

Anti-Wr ap

Ph ase Wr ap Suppression

V iews / Segment

Se g m e n t s

TD

TD

Hal f Scan

Half Scan

AFI

Par tial Echo

Half Echo

Ma tched Bandwi dth

Flow Comp; Flag

GR

FC

TONE

S SP

ISCE

MTC

MTC

SORS-STC

SPIR

Fat Sat

MSOFT

Proset

PASTA

R E ST

Pre Sat

Pre Sat

Tr avel REST

Sequential Pre Sat

BFAST

ECG Triggered / VCG

ECG Triggered

C a r d i a c G a te d

Trigger Delay / TD

Delay Ti me

Trigger Delay / TD

Trigger; PEAR

MAR

Respir ator y Gated

Plan Scan

S c a n o gr a m

Locator

BolusTr ak

V i su a l P re p



On account of certain regional limitations of sales rights and servi ce availability, we cannot cannot guarantee that all products included in this brochure are available through the Siemens sales organization worldwide. Availability and packaging may vary by country and is subject to change without prior notice. Some/All of the features and products described herein may n ot be available in the United States. The information in this document contains general technical descriptions of specifications and options as well as standard and optional features which do not always have to be present in individual cases. Siemens reserves the right to modify the design, packaging, specifications and options described herein without prior notice. Please contact your local Siemens sales representative for the most current information. Note: Any technical data contained in this document may vary within defined tolerances. Original images always lose a certain amount of detail when reproduced. © 2007 Siemens Medical Solutions USA, Inc. Order No. A9143-7913-C1-4A00 Printed in USA 05-2007 All rights reserved

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