Ultrasound elastography
Real-time shear wave ultrasound elastography: a new tool for the evaluation of diaphragm and limb muscle stiffness in critically ill patients
... wave ultrasound elastography: a new tool for the evaluation of diaphragm and limb muscle stiffness in critically ill patients Aurelien Flattres, Yassir Aarab, Stéphanie Nougaret, Fanny Garnier, ...
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Displacement Reconstructions in Ultrasound Elastography
... Introduction Elastography has established itself as an important imaging modality to quantify the elastic proper- ties of biological tissues [ 8 , 9 , 16 , 18 , 19 , 20 , 21 ...of elastography, the first ...
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Characterization of carotid artery plaques using noninvasive vascular ultrasound elastography
... An alternative way is to globally estimate pixel-wise motions in a region of interest (ROI) instead of using overlapping windows. To our knowledge, no pixel-based algorithms were proposed for vascular ultrasound ...
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Automatic palpation for quantitative ultrasound elastography by visual servoing and force control
... quantitative ultrasound elastography by visual servoing and force control Pedro ...the elastography process and improve the resulting ...the elastography modality directly as input of the ...
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Investigation of PVC plastisol tissue-mimicking phantoms for MR-and ultrasound-elastography
... for methods that require simultaneously both MR imaging and US attenuation for internally-generated displacements, such as MR-ARFI (Szabo and Wu, 2000; Souchon et al., 2008; Vappou et al., 2018). The stability of the ...
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Non-invasive biomechanical characterization of intervertebral discs by shear wave ultrasound elastography: a feasibility study
... More in-depth characterization of disc’s mechanical properties could be obtained by performing ex vivo tests where all relevant variables and possible sources of artefact can be controlled (e.g., disc thickness, degree ...
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3D Ultrasound Elastography for Early Detection of Lesions. Evaluation on a Pressure Ulcer Mimicking Phantom.
... Since static elastography has appeared in the early 90s [3], mainly 1D methods were developed. A few 2D methods have also been worked out [4]-[10]. These techniques are adapted to current clinical equipment since ...
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en fr Motion estimation in ultrasound image sequences: application to ultrasound elastography of the thyroid Estimation du mouvement dans des séquences d'images échographiques : application à l'élastographie ultrasonore de la thyroïde
... Pour cette raison, nous montrons sur la Figure 4-17 trois cartes : les deux premières correspondent aux rapports des déplacements estimés en triant la séquence et en utilisant la métho[r] ...
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NUMERICAL SIMULATION OF WAVE PROPAGATION IN SOFT SOLID FOR ULTRASOUND ELASTOGRAPHY
... 2 INSERM LabTAU Unit 1032, France, stefan.catheline@inserm.fr 3 ANSYS, France, michel.rochette@ansys.com SUMMARY Transient elastography is a non-invasive method to determine the stiffness of soft tissues based on ...
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Comparison between 3D Supersonic Shear Wave Elastography and Magnetic Resonance Elastography: a preliminary experimental study
... Imaging, Ultrasound, Elastography ...approaches, Ultrasound Su- personic Shear Wave Elastography (SSWE) and Magnet- ic Resonance Elastography (MRE) have particular attrac- tive ...
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Shear Wave Elastography can evaluate Annulus Fibrosus Alteration in Adolescent Scoliosis
... wave elastography to characterize the mechanical properties of lumbar disc in scoliotic ...MRI elastography has allowed to quantify the mechanical properties of IVD in vitro [32][33] and in vivo [16] , ...
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Quantitative stress imaging by combining static and dynamic elastography
... of ultrasound elastography have been developed such as remote sensing technique for imaging the elastic properties of biological tissues in vivo: the so-called static elastography [1] and dynamic ...
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Measurement of viscoelastic properties of condensed matter using magnetic resonance elastography
... Keywords: MRI; non-invasive; brain; food products; shear stress; elasticity; acoustic waves. 1. I NTRODUCTION B OTH CONVENTIONAL MAGNETIC RESONANCE imaging (MRI) and computed tomography (CT) of condensed matter usually ...
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Lithium niobate ultrasound transducers for high-resolution focused ultrasound surgery
... Focused ultrasound surgery (FUS) is based on the application of high intensity focused ultrasound (HIFU) to heat tissue to a temperature that causes protein denaturation and coagulative necrosis ...of ...
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Cervical HI-RTE elastography and pregnancy outcome: a prospective study
... Several studies have already demonstrated reproducibility of elastography measurements [17,19] . Nonetheless, standardization of the settings for the elastography devices is necessary, especially for the ...
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Real time ultrasound image denoising
... intraoperative ultrasound images acquired during a neurosurgical ...context, ultrasound images are acquired to be registered toward pre-operative MR images to update the surgical ...
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Recent Advances on Ultrasound Contrast Agents for Blood-Brain Barrier Opening with Focused Ultrasound
... 2. Recent Advances on Sono-Sensitive Agents for Ultrasound-Assisted Blood-Brain Barrier Opening 2.1. Method of Literature Search We searched on PubMed in October 2020 for all studies on BBB disruption induced by ...
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Convertible pneumatic actuator for magnetic resonance elastography of the brain
... electromagnetic, piezoelectric and pneumatic. The most frequently used is the electromagnetic principle as it generally allows a simple and relatively low-cost design. However, various problems with electromagnetic ...
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Diagnostic accuracy of ShearWave Elastography compared to Transient Elastography for the non-invasive assessment of liver fibrosis in chronic hepatitis B or C
... intercostal spaces. The SWE box was placed guided by real-time B-mode ultrasound image, at least 2 cm deeper than the Glisson’s capsule and in an area free of large vessels. Patients were asked to breath slowly ...
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Quantitative and qualitative approach for shearwave elastography in superficial lymph nodes
... Diagnostic Ultrasound; Shear Wave Elastography; Lymph nodes; Lymphomas; Performance analysis.. Introduction.[r] ...
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