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GRADIENT ECHO [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2008-01-09

English

Subject field(s)
  • Magnetic Resonance Imaging
DEF

[A sequence] characterized by a series of rapidly applied 180° rephasing pulses and multiple echoes, changing the phase encoding gradient for each echo.

French

Domaine(s)
  • Imagerie par résonance magnétique

Spanish

Save record 1

Record 2 2007-04-25

English

Subject field(s)
  • Magnetic Resonance Imaging
DEF

A gradient echo sequence.

CONT

The FLASH gradient echo sequence uses the equilibrium of longitudinal magnetization. The remaining transverse magnetization is eliminated by a strong gradient(spoiler gradient).

OBS

The acronyms are often followed by the word "sequence" to make them transparent.

OBS

FLASH: term used by Siemens.

OBS

SPGR: term used by GE Healthcare.

OBS

FFE-T1: term used by Philips.

PHR

FFE-T1 sequence; FLASH sequence; SPGR sequence.

French

Domaine(s)
  • Imagerie par résonance magnétique
CONT

Les paramètres des séquences sont optimisés selon un critère défini pour une mesure efficace des variations de température avec des séquences écho de gradient (SPGR).

OBS

Les termes sont souvent précédés du mot «séquence», ce qui permet non seulement de les rendre transparents, mais aussi de lever l'ambiguïté de leur genre.

OBS

FLASH : terme utilisé par la société Siemens.

OBS

SPGR : terme utilisé par la société GE Healthcare.

OBS

FFE-T1 : terme utilisé par la société Philips.

PHR

séquence FFE-T1; séquence FLASH; séquence SPGR.

Spanish

Save record 2

Record 3 2007-04-25

English

Subject field(s)
  • Magnetic Resonance Imaging
DEF

A preselected set of defined RF [radio frequency] and gradient pulses, usually repeated many times during a scan, wherein the time interval between pulses and the amplitude and shape of the gradient waveforms will control NMR [nuclear magnetic resonance] signal reception and affect the characteristics of the MR [magnetic resonance] images.

OBS

Typical pulse sequences : spin echo, gradient echo, TurboSE, Inversion Recovery...

French

Domaine(s)
  • Imagerie par résonance magnétique
DEF

[...] succession d'impulsions et de temps morts utilisée pour exciter les moments magnétiques des protons [...]

Key term(s)
  • séquence d'impulsion

Spanish

Save record 3

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