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1396-04-11 |
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sound touch elastography
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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 =3 cs2
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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مشاهده جزئیات
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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 =3 cs2
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 =3 cs2
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
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