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MAGNETIC RESONANCE ELASTOGRAPHY [1 record]

Record 1 2010-12-15

English

Subject field(s)
  • Diagnostic Procedures (Medicine)
  • Magnetic Resonance Imaging
DEF

[A] medical imaging technique that images propagating mechanical waves using MRI [magnetic resonance imaging] [to] non-invasively measure... the stiffness of biological tissues.

CONT

Magnetic Resonance Elastography (MRE) uses MRI [magnetic resonance imaging] combined with harmonic mechanical excitation to the tissue to determine how quickly a wave propagates through the organ. ... 3 main steps ...: send mechanical waves to the region of interest; use modified MRI imaging techniques to image the propagating mechanical waves throughout the organ (wave image); process the wave image into an elastogram (mapping of local elasticity).

French

Domaine(s)
  • Méthodes diagnostiques (Médecine)
  • Imagerie par résonance magnétique
CONT

[...] élastographie par résonance magnétique [...] La technique consiste à utiliser un appareil d’imagerie par résonance magnétique (IRM) afin de mesurer les déplacements induits dans les tissus par un vibreur sollicitant le milieu de manière monochromatique (50 à 1000 Hz). [...] Bien que l’élastographie par résonance magnétique permette de reconstituer des cartes d’élasticité en trois dimensions, elle possède deux inconvénients majeurs : le temps d’acquisition et l’immobilité forcée des sujets [...]

Spanish

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