An annular array with fiber composite microstructure for far field NDT imaging applications [PDF]
, 2010 This paper describes the design and fabrication of a reduced element count annular array for far field NDT imaging applications, built with a random fiber piezoelectric composite microstructure.
Dziewierz, J. +5 more
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Correction of concentrated and distributed aberrations in medical ultrasound imaging [PDF]
, 1996 A method is presented for iterative correction of wave fields aberrated in a plane located at an arbitrary distance from an array transducer. The signals received from the transducer are processed by an inverse extrapolator in such a way that the output ...
Berkhoff, A.P., Thijssen, J.M.
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Three-Dimensional Contouring Control: A Task Polar Coordinate Frame Approach
IEEE Access, 2019 In order to characterize the surface quality of machined parts, researchers have proposed a family of coordinate transformation-based approaches to deal with the contour following problem, which alleviate the computational consumption of calculating the ...
Ran Shi, Yunjiang Lou
doaj +1 more source
FEA-Based Ultrasonic Focusing Method in Anisotropic Media for Phased Array Systems
Applied Sciences, 2021 Traditional ultrasonic imaging methods have a low accuracy in the localization of defects in austenitic welds because the anisotropy and inhomogeneity of the welds cause distortion of the ultrasonic wave propagation paths in anisotropic media.
Seongin Moon +7 more
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Performance of periodic piezoelectric composite arrays incorporating a passive phase exhibiting anisotropic properties [PDF]
, 2005 This paper explores the minimisation of interelement cross talk in 1-D and 2-D periodic composite array structures through the incorporation of a passive phase exhibiting anisotropic elastic properties.
Hayward, G. +4 more
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Rotational-invariant speckle-scanning ultrasonography through thick bones
Scientific Reports, 2021 Ultrasonography is a major medical imaging technique that has been broadly applied in many disease diagnoses. However, due to strong aberration and scattering in the human skull, high-resolution transcranial ultrasonic imaging remains a grand challenge ...
Siyi Liang, Lidai Wang
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Synthetic vascular ultrasound imaging through coupled fluid-structure interaction and ultrasound simulations [PDF]
, 2010 Although ultrasonic imaging is commonly applied in cardiovascular research and clinical practice, current blood flow and vessel wall imaging methods are still hampered by several limitations.
Degroote, Joris +4 more
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The Leap from Digitalization to Intelligentization of Medical Digital Ultrasonic Imaging Workstations [PDF]
Advanced Ultrasound in Diagnosis and Therapy, 2023 This paper begins with the medical digital ultrasonic imaging workstations' development history and stages of PACS (Picture Archiving and Communication Systems).
Yande Zhang, DBA, Yanjun Cheng, MBME, Yingxin Li, MCS, Shengli Li, MM
doaj
Transthoracic Ultrasound Evaluation of Pulmonary Changes in COVID-19 Patients During Treatment Using Modified Protocols [PDF]
Advanced Ultrasound in Diagnosis and Therapy, 2020 Objective: To investigate the feasibility of evaluating imaging changes pre-and post-treatment in Corona Virus Disease 2019 (COVID-19) patients by transthoracic pulmonary ultrasound.Methods: A total of 8 patients diagnosed with severe or critical COVID ...
Guorong Lyu, MD, Ying Zhang, MD, Guoliang Tan, MD
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A match coefficient approach for damage imaging in structural components by ultrasonic synthetic aperture focus [PDF]
, 2017 Ultrasonic Synthetic Aperture Focus (SAF) techniques are commonly used to image structural defects. In this paper, a variation of SAF based on ideas borrowed from Matched Field Processing (MFP) is evaluated to reduce artifacts and sidelobes of the ...
Lanza di Scalea, F. +4 more
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