نتایج جستجو برای: elasticity imaging techniques anemia
تعداد نتایج: 1109620 فیلتر نتایج به سال:
INTRODUCTION Characterization of muscle elasticity will improve the diagnosis and treatment of muscle disorders. The purpose is to compare the use of magnetic resonance elastography (MRE) and ultrasound elastography (USE) techniques to elucidate the MRE cartography of thigh muscles. METHODS Both elastography techniques were performed on 5 children and 7 adults. Quantitative (MRE) and qualitat...
Introduction: In conventional MR elastography, a vibrating mechanical device is used to induce an audio frequency wave motion in tissue. Synchronised with the vibration, an imaging experiment is conducted to investigate the propagation of the wave in the tissue so that its shear modulus can be deduced. We report here a method of estimating the brain tissue’s elasticity without use of an externa...
INTRODUCTION Although the role of viscoelasticity in muscle mechanics is well recognized, methods for measurement in situ are limited. Recent advances in elastography have made possible the imaging of viscoelastic moduli within individual muscles [1, 2]. We have investigated a new approach, supersonic shear imaging (SSI), which combines high frame-rate (5kHz) ultrasound with acoustic radiation ...
Many diseases markedly affect the mechanical properties of tissues. This accounts for the efficacy of palpation, a centuries-old technique of clinical medicine. MR Elastography (MRE) is an emerging diagnostic imaging technique for quantitatively assessing the mechanical properties of tissue [1]. It is a three-step process, involving: (i) generating mechanical waves within the tissues of interes...
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The technical part of these Guidelines and Recommendations, produced under the auspices of EFSUMB, provides an introduction to the physical principles and technology on which all forms of current commercially available ultrasound elastography are based. A difference in shear modulus is the common underlying physical mechanism that provides tissue contrast in all elastograms. The relationship be...
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