نتایج جستجو برای: tissue harmonic imaging

تعداد نتایج: 1349927  

2006
Dong Zhang Xiu-fen Gong

Acoustic nonlinear imaging has brought about significant improvements in image quality by taking advantage of the nonlinear components. This paper reviews works on acoustic nonlinear imaging for biological tissues in our Laboratory, including acoustic nonlinearity parameter B/A imaging, tissue harmonic imaging by using the multi-phase-coded-pulse technique and super harmonic imaging. Theoretica...

Journal: :European journal of echocardiography : the journal of the Working Group on Echocardiography of the European Society of Cardiology 2006
Stuart P Turner Mark J Monaghan

Tissue harmonic imaging (THI) is a B mode imaging technique that improves echocardiographic image quality by reducing superficial artefact. The modality increases image signal-to-noise ratio at the expense of reduced axial resolution. While the qualitative improvements of harmonic echocardiographic imaging are widely accepted, the degree to which this is translated into improved quantitative me...

Journal: :Journal of Evolution of Medical and Dental Sciences 2015

Journal: :Ultrasound in Obstetrics and Gynecology 2004

Journal: :The Journal of the Acoustical Society of America 2011

Journal: :DEStech Transactions on Computer Science and Engineering 2017

Journal: :Ultrasound in medicine & biology 2004
Jacinta E Browne Amanda J Watson Nicholas M Gibson Nicholas J Dudley Alex T Elliott

Tissue harmonic imaging (THI) and compound imaging have been reported clinically to improve contrast resolution, tissue differentiation and overall image quality. However, there have been limited studies to date to quantify objectively the improvements in image quality achieved with these new imaging techniques. The aim of this study was to quantify differences in image quality that exist betwe...

Journal: :Physics in medicine and biology 2015
Libertario Demi Ruud J G van Sloun Hessel Wijkstra Massimo Mischi

Standard dynamic-contrast enhanced ultrasound (DCE-US) imaging detects and estimates ultrasound-contrast-agent (UCA) concentration based on the amplitude of the nonlinear (harmonic) components generated during ultrasound (US) propagation through UCAs. However, harmonic components generation is not specific to UCAs, as it also occurs for US propagating through tissue. Moreover, nonlinear artifac...

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