نتایج جستجو برای: shear wave elastography

تعداد نتایج: 283484  

Journal: :Current Directions in Biomedical Engineering 2021

Abstract Elasticity of soft tissue is a valuable information to physicians in treatment and diagnosis diseases. The elastic properties can be estimated with ultrasound (US) shear wave imaging (SWEI). In US-SWEI, force push applied inside the resulting detected by high-frequency imaging. such as velocity mapped elasticity. Commonly, features are extracted tracking peak wave, estimating phase or ...

2009
Kui Lin Joyce McLaughlin Ning Zhang

The goal of elastography is to image the shear stiffness of tissue for cancer diagnosis and the focus of this paper is on single frequency elastographic data. Assuming that the measured displacement of the propagating shear wave satisfies the acoustic wave equation, the shear modulus μ can be recovered by solving a first-order partial differential equation in the inverse problem. To capture pos...

Journal: :Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine 2010
Tanya Glozman Haim Azhari

OBJECTIVE The correlation between various diseases and the change in the local mechanical properties of soft tissues has been long known. Over the past 20 years, there have been increasing research efforts to characterize mechanical properties of biological tissues using ultrasonic elastography. However, most of these works were based on characterization of only 1 type of waves (longitudinal or...

Journal: :Medical physics 2013
Rui Cao Zhihong Huang Tomy Varghese Ghulam Nabi

PURPOSE Quantification of stiffness changes may provide important diagnostic information and aid in the early detection of cancers. Shear wave elastography is an imaging technique that assesses tissue stiffness using acoustic radiation force as an alternate to manual palpation reported previously with quasistatic elastography. In this study, the elastic properties of tissue mimicking materials,...

Journal: :Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine 2016
Fahrettin Kilic Mehmet Velidedeoglu Tulin Ozturk Sedat Giray Kandemirli Atilla Suleyman Dikici Mehmet Emin Er Fatih Aydogan Fatih Kantarci Mehmet Halit Yilmaz

OBJECTIVES Axillary lymph node status is one of the important prognostic factors in early-stage breast cancer. Despite the combined use of sonography, fine-needle aspiration, and sentinel lymph node (SLN) dissection, there is a gap between the potential effectiveness of those techniques and current success to determine the axillary lymph node status. The main aim of this study was to evaluate t...

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