Correction: Quantifying the Elastic Property of Nine Thigh Muscles Using Magnetic Resonance Elastography
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Quantifying the Elastic Property of Nine Thigh Muscles Using Magnetic Resonance Elastography
BACKGROUND Pathologies of the muscles can manifest different physiological and functional changes. To adapt treatment, it is necessary to characterize the elastic property (shear modulus) of single muscles. Previous studies have used magnetic resonance elastography (MRE), a technique based on MRI technology, to analyze the mechanical behavior of healthy and pathological muscles. The purpose of ...
متن کاملDetermination of thigh muscle stiffness using magnetic resonance elastography.
PURPOSE To measure the elastic properties of the vastus lateralis (VL), vastus medialis (VM), and sartorius (Sr) muscles using magnetic resonance elastography (MRE). MATERIALS AND METHODS To obtain a normative database of the aforementioned muscles, oblique scan directions were prescribed passing through each muscle. Shear waves were induced into the muscles using pneumatic and mechanical dri...
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PURPOSE To measure the stiffness of the vastus medialis (VM) in hyperthyroid patients before and after treatment. MATERIALS AND METHODS A total of five healthy euthyroid patients and five hyperthyroid patients were tested using magnetic resonance elastography (MRE), which involves the induction of shear waves in the thigh muscles using a pneumatic driver at 90 Hz. RESULTS Among the pretreat...
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Introduction Obstructive sleep apnoea (OSA) is a respiratory disorder characterized by the repetitive collapse of the upper airway during sleep. It affects ~ 7 % of the population and is a major risk factor for fatigue related accidents and cardiovascular disease. The pathophysiological mechanisms of OSA are unclear and the change in mechanical properties of soft tissues and tongue muscles surr...
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PURPOSE Recently, the attenuating behavior of soft tissue has been addressed in magnetic resonance elastography by the inclusion of a damping mechanism in the methods used to reconstruct the resulting mechanical property image. To date, this mechanism has been based on a viscoelastic model for material behavior. Rayleigh, or proportional, damping provides a more generalized model for elastic en...
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