Patient-Activated Three-Dimensional Multifrequency Magnetic Resonance Elastography for High-Resolution Mechanical Imaging of the Liver and Spleen
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چکیده
منابع مشابه
High-resolution mechanical imaging of the human brain by three-dimensional multifrequency magnetic resonance elastography at 7T
Magnetic resonance elastography (MRE) is capable of measuring the viscoelastic properties of brain tissue in vivo. However, MRE is still limited in providing high-resolution maps of mechanical constants. We therefore introduce 3D multifrequency MRE (3DMMRE) at 7T magnetic field strength combined with enhanced multifrequency dual elasto-visco (MDEV) inversion in order to achieve high-resolution ...
متن کاملPatient-Activated Three-Dimensional Multifrequency Magnetic Resonance Elastography for High-Resolution Mechanical Imaging of the Liver and Spleen Patienten-aktivierte dreidimensionale Multifrequenz-Magnet- resonanzelastografie zur hochauflösenden mechanischen Bildgebung der Leber und Milz
Ziel: Entwicklung und Demonstration einer neuen dreidimensionalen Mehrfrequenz-Magnetresonanzelastografie-Mehode (3-D-MMRE) zur hochauflösenden mechanischen in vivo Bildgebung der Leber und Milz. Material und Methoden: Zehn gesunde Freiwillige wurden mittels abdominaler single-shot 3-DMMRE unter Anwendung eines neuartigen Patienten-aktivierten Atemtrigger-Systems untersucht. Zeitaufgelöste Well...
متن کاملHigh-Resolution Mechanical Imaging of Glioblastoma by Multifrequency Magnetic Resonance Elastography
OBJECTIVE To generate high-resolution maps of the viscoelastic properties of human brain parenchyma for presurgical quantitative assessment in glioblastoma (GB). METHODS Twenty-two GB patients underwent routine presurgical work-up supplemented by additional multifrequency magnetic resonance elastography. Two three-dimensional viscoelastic parameter maps, magnitude |G*|, and phase angle φ of t...
متن کاملMultifrequency inversion in magnetic resonance elastography.
Time-harmonic shear wave elastography is capable of measuring viscoelastic parameters in living tissue. However, finite tissue boundaries and waveguide effects give rise to wave interferences which are not accounted for by standard elasticity reconstruction methods. Furthermore, the viscoelasticity of tissue causes dispersion of the complex shear modulus, rendering the recovered moduli frequenc...
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ژورنال
عنوان ژورنال: RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren
سال: 2013
ISSN: 1438-9029,1438-9010
DOI: 10.1055/s-0033-1350510