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1396-04-11 sound touch elastography
In recent years there has been great interest in measuring the stiffness of tissue in vivo. Indeed, over the past 20 years, different elasticity imaging approaches have been developed around the world[1-4].Ultrasound elasticity imaging adds mechanical information to conventional diagnostic ultrasound and extends patient diagnostic information. Now more and more doctors have proven its value in many clinical applications, especially in cancer diagnosis[4-8].Strain elastography has been popular for a long time, providing 2D strain imaging of the ROI (region of interest).Under the same pressure, lower strain corresponds to a harder medium. However, under different pressure, the same tissue may show different strain imaging. Practitioners therefore need more experience to get more reliable images. Shear wave elastography has gained more attention in recent years, providing quantitative stiffness measurement by displaying the shear wave propagation speed or the tissue mechanical modulus, such as shear modulus, and Young's modulus, which is most often used to quantify the stiffness. A high Young's modulus indicates high stiffness. For a linear, elastic, isotropic medium, Young's modulus E can be estimated by E = 3G =3cs2 where G is the shear modulus that quantifies how the medium shape changes, is the density, and Cs is the speed of shear wave. So, when a shear wave propagates, a high speed indicates a stiff medium, and a low speed indicates a soft one.[8-10] Shear Wave elastography is a promising technique for non-invasive quantification of tissue stiffness on an absolute scale. However, there are still challenges to get better penetration under real time shear wave elastography. To improve the penetration and to minimize the influence of noise, Mindray has developed an innovative approach for better imaging results based on shear wave.. Acoustic Radiation Force and Shear Wave....
 
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1396-04-11 sound touch elastography
In recent years there has been great interest in measuring the stiffness of tissue in vivo. Indeed, over the past 20 years, different elasticity imaging approaches have been developed around the world[1-4].Ultrasound elasticity imaging adds mechanical information to conventional diagnostic ultrasound and extends patient diagnostic information. Now more and more doctors have proven its value in many clinical applications, especially in cancer diagnosis[4-8].Strain elastography has been popular for a long time, providing 2D strain imaging of the ROI (region of interest).Under the same pressure, lower strain corresponds to a harder medium. However, under different pressure, the same tissue may show different strain imaging. Practitioners therefore need more experience to get more reliable images. Shear wave elastography has gained more attention in recent years, providing quantitative stiffness measurement by displaying the shear wave propagation speed or the tissue mechanical modulus, such as shear modulus, and Young's modulus, which is most often used to quantify the stiffness. A high Young's modulus indicates high stiffness. For a linear, elastic, isotropic medium, Young's modulus E can be estimated by E = 3G =3cs2 where G is the shear modulus that quantifies how the medium shape changes, is the density, and Cs is the speed of shear wave. So, when a shear wave propagates, a high speed indicates a stiff medium, and a low speed indicates a soft one.[8-10] Shear Wave elastography is a promising technique for non-invasive quantification of tissue stiffness on an absolute scale. However, there are still challenges to get better penetration under real time shear wave elastography. To improve the penetration and to minimize the influence of noise, Mindray has developed an innovative approach for better imaging results based on shear wave.. Acoustic Radiation Force and Shear Wave....
 
مشاهده جزئیات
     
     
1396-04-11 sound touch elastography
In recent years there has been great interest in measuring the stiffness of tissue in vivo. Indeed, over the past 20 years, different elasticity imaging approaches have been developed around the world[1-4].Ultrasound elasticity imaging adds mechanical information to conventional diagnostic ultrasound and extends patient diagnostic information. Now more and more doctors have proven its value in many clinical applications, especially in cancer diagnosis[4-8].Strain elastography has been popular for a long time, providing 2D strain imaging of the ROI (region of interest).Under the same pressure, lower strain corresponds to a harder medium. However, under different pressure, the same tissue may show different strain imaging. Practitioners therefore need more experience to get more reliable images. Shear wave elastography has gained more attention in recent years, providing quantitative stiffness measurement by displaying the shear wave propagation speed or the tissue mechanical modulus, such as shear modulus, and Young's modulus, which is most often used to quantify the stiffness. A high Young's modulus indicates high stiffness. For a linear, elastic, isotropic medium, Young's modulus E can be estimated by E = 3G =3cs2 where G is the shear modulus that quantifies how the medium shape changes, is the density, and Cs is the speed of shear wave. So, when a shear wave propagates, a high speed indicates a stiff medium, and a low speed indicates a soft one.[8-10] Shear Wave elastography is a promising technique for non-invasive quantification of tissue stiffness on an absolute scale. However, there are still challenges to get better penetration under real time shear wave elastography. To improve the penetration and to minimize the influence of noise, Mindray has developed an innovative approach for better imaging results based on shear wave.. Acoustic Radiation Force and Shear Wave....
 
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