Medical Ultrasonic Elasticity Imaging Techniques [PDF]
Journal of the Korean Society for Nondestructive Testing, 2012 Breast and prostate tumors or cancers tend to be stiffer than the surrounding normal tissue. However, the difference in echogenicity between cancerous and normal tissues is not clearly distinguishable in ultrasound B-mode imaging. Thus, imaging the stiffness contrast between the two different tissue types helps to diagnose lesions quantitatively, and ...
exaly +2 more sources
Improving Displacement Signal-to-Noise Ratio for Low-Signal Radiation Force Elasticity Imaging Using Bayesian Techniques [PDF]
Ultrasound in Medicine and Biology, 2016 Radiation force-based elasticity imaging is currently being investigated as a possible diagnostic modality for a number of clinical tasks, including liver fibrosis staging and the characterization of cardiovascular tissue. In this study, we evaluate the relationship between peak displacement magnitude and image quality and propose using a Bayesian ...
Brett Byram, Douglas M Dumont
exaly +3 more sources
A residual based A POSTERIORI error estimator for an augmented mixed finite element method in linear elasticity [PDF]
, 2005 In this paper we develop a residual based a posteriori error analysis for an augmented mixed finite element method applied to the problem of linear elasticity in the plane. More precisely, we derive a reliable and efficient a posteriori error estimator
Heuer, N +16 more
core +7 more sources
A Comparison of Shear Wave Elastography between Normal Myometrium, Uterine Fibroids, and Adenomyosis: A Cross-Sectional Study [PDF]
International Journal of Fertility and Sterility, 2022 Background: The differential diagnosis between uterine fibroid and adenomyosis is sometimes difficult; a precise diagnosis is required in women with infertility because of the different choice of treatments.
Sutee Pongpunprut +6 more
doaj +1 more source
Clinical applications of shear wave dispersion imaging for breast lesions: a pictorial essay [PDF]
Ultrasonography, 2023 Shear wave dispersion (SWD) imaging is a newly developed ultrasound technology designed to evaluate the dispersion slope of shear waves, which is related to tissue viscosity.
Min Sun Bae +3 more
doaj +1 more source
Speckle tracking techniques for ultrasound elasticity imaging.
, 1998 The fundamental goal of elasticity imaging is to detect changes in soft tissue elasticity which are related to pathological processes. To reconstruct images of elastic modulus deep within the body, mechanical displacement and strain fields must be ...
Lubinski, Mark Alexander
core +6 more sources
Elastic Downsampling: An Adaptive Downsampling Technique to Preserve Image Quality [PDF]
Electronics, 2021 This paper presents a new adaptive downsampling technique called elastic downsampling, which enables high compression rates while preserving the image quality. Adaptive downsampling techniques are based on the idea that image tiles can use different sampling rates depending on the amount of information conveyed by each block.
Jose J. García Aranda +4 more
openaire +1 more source
Assessment of liver fibrosis using 2-dimensional shear wave elastography: a prospective study of intra- and inter-observer repeatability and comparison with point shear wave elastography [PDF]
Ultrasonography, 2020 Purpose The purpose of this study was to prospectively investigate the intra- and inter-observer repeatability of a new 2-dimensional (2D) shear wave elastography (SWE) technique (S-Shearwave Imaging) for assessing liver fibrosis in chronic liver disease
Jeongin Yoo +3 more
doaj +1 more source
Shear wave elastography using ultrasound: effects of anisotropy and stretch stress on a tissue phantom and reactive lymph nodes in the neck [PDF]
Ultrasonography, 2017 Purpose The purpose of this study was to evaluate how the anisotropy and the static stretch stress of the cervical musculature influence the measured shear modulus in a tissue-mimicking phantom and in cervical lymph nodes in vivo by using shear wave ...
Ha Young Lee +7 more
doaj +1 more source
Correlation of the grade of hepatic steatosis between controlled attenuation parameter and ultrasound in patients with fatty liver: a multi-center retrospective cohort study [PDF]
The Korean Journal of Internal Medicine, 2020 Background/Aims The controlled attenuation parameter (CAP), based on transient elastography, is widely used for noninvasive assessment of the degree of hepatic steatosis (HS).
Jeong-Ju Yoo +18 more
doaj +1 more source