T. OIDA, Y. KANG, T. MATSUDA, J. OKAMOTO, T. AZUMA, O. TAKIZAWA, A. AMANO, S. TSUTSUMI Graduate School of Informatics, Kyoto University, Kyoto, Japan, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan, Siemens-Asahi Medi cal Technologies Ltd., Tokyo, Japan Introduction In most magnetic resonance elastography (MRE) studies in vivo or ex vivo, a probe that contacted the targ...

Background: Physiological aging of the brain is accompanied by ubiquitous degeneration of neurons and oligodendrocytes [1]. An alteration of the cellular matrix of an organ impacts its macroscopic viscoelastic properties, which are characterized by mechanical parameters such as stiffness and internal friction. To date Magnetic Resonance Elastography (MRE) is the only non-invasive technique for ...

Elasticity is a sensitive measure of the microstructural constitution of soft biological tissues and increasingly used in diagnostic imaging. Magnetic resonance elastography (MRE) uniquely allows in vivo measurement of the shear elasticity of brain tissue. However, the spatial resolution of MRE is inherently limited as the transformation of shear wave patterns into elasticity maps requires the ...

Aims. To identify the prevalence of colonic and extraenteric incidental findings in magnetic resonance enterography (MRE) and their clinical significance. Methods. We retrospectively analysed 470 MRE studies carried out between March 2012 and 2014. Incidental findings were defined as those not expected from or made apparent on the referral. MRE reports were reviewed for colonic and extraenteric...

Volumetric structural magnetic resonance imaging (MRI) is commonly used to determine the extent of neuronal loss in aging, indicated by cerebral atrophy. The brain, however, exhibits other biophysical characteristics such as mechanical properties, which can be quantified with magnetic resonance elastography (MRE). MRE is an emerging noninvasive imaging technique for measuring viscoelastic tissu...

Crohn's disease treatment has improved significantly with the development of immunosuppressive and immunomodulatory agents, while surgery remains an important option in selected patients. However, a relative lag in diagnostics has become apparent with a growing need for the capacity to noninvasively and safely evaluate the tissue changes of Crohn's disease within the bowel wall and deeper tissu...

Magnetorheological elastomer (MRE) is a type of smart material which can vary its shear modulus rapidly, continuously and reversibly, by the external magnetic fi eld. MRE has attracted increasing attention and been widely used in various applications. Generally it has been created by dispersing magnetic fi ller particles in polymer matrices. Most current studies are focusing on the microstructu...

Introduction: Magnetic resonance elastography (MRE) [1] is a noninvasive phase-contrast technique for spatially resolving the shear modulus μ of tissue like materials. Current methods for calculating μ ignore geometric considerations by locally assuming a uniform, infinite medium [2]. The purpose of this work is to validate two new MRE-based methods for estimating μ in objects in which geometri...

AIM To assess the potential of cardiac magnetic resonance elastography (MRE) for elasticity-based detection of abnormal left ventricular (LV) relaxation. MATERIALS AND METHODS Cardiac MRE was performed in 3 groups: young volunteers (n = 11; mean age, 31.7 years), older volunteers (n = 5; mean age, 54.8 years), and a group with relaxation abnormalities (n = 11; mean age, 58 years) identified b...