Noninvasive assessment of the rheological behavior of human organs using multifrequency MR elastography: a study of brain and liver viscoelasticity

• Published in: Physics in medicine & biology Vol. 52; no. 24; pp. 7281 - 7294
• Main Authors: Klatt, Dieter, Hamhaber, Uwe, Asbach, Patrick, Braun, Jürgen, Sack, Ingolf
• Format: Journal Article
• Language: English
• Published: England IOP Publishing 21.12.2007
• Subjects: Adult; Brain - physiology; Elasticity - radiation effects; Elasticity Imaging Techniques - methods; Energy Transfer - physiology; Humans; Liver - physiology; Magnetic Resonance Imaging; Male; Middle Aged; Models, Biological; Physical Stimulation; Rheology - methods; Shear Strength; Stress, Mechanical; Viscosity - radiation effects

MR elastography (MRE) enables the noninvasive determination of the viscoelastic behavior of human internal organs based on their response to oscillatory shear stress. An experiment was developed that combines multifrequency shear wave actuation with broad-band motion sensitization to extend the dyna...