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Lista de obras de Tomy Varghese

A COMPARISON OF MODEL BASED AND DIRECT OPTIMIZATION BASED FILTERING ALGORITHMS FOR SHEARWAVE VELOCITY RECONSTRUCTION FOR ELECTRODE VIBRATION ELASTOGRAPHY.

artículo científico publicado en 2013

A deconvolution filter for improvement of time-delay estimation in elastography

artículo científico publicado en 1998

A general solution for catheter position effects for strain estimation in intravascular elastography

artículo científico publicado en 2005

A kernel smoothing algorithm for ablation visualization in ultrasound elastography

artículo científico publicado en 2018

A method for experimental characterization of the noise performance of elastographic systems

artículo científico publicado en 1999

A novel saline infusion sonohysterography-based strain imaging approach for evaluation of uterine abnormalities in vivo: preliminary results

artículo científico publicado en 2012

A review of carotid atherosclerosis and vascular cognitive decline: a new understanding of the keys to symptomology.

artículo científico publicado en 2010

A theoretical framework for performance characterization of elastography: the strain filter

scientific article published on 01 January 1997

Absolute backscatter coefficient estimates of tissue-mimicking phantoms in the 5-50 MHz frequency range

artículo científico publicado en 2011

Acoustic backscatter and effective scatterer size estimates using a 2D CMUT transducer

artículo científico publicado en 2008

Adaptive spectral strain estimators for elastography

artículo científico publicado en 2004

Alterations in Ultrasound Scattering Following Thermal Ablation in ex vivo Bovine Liver

artículo científico publicado en 2014

An analysis of elastographic contrast-to-noise ratio

artículo científico publicado en 1998

An approach to unbiased subsample interpolation for motion tracking.

artículo científico publicado en 2013

An optimized index of human cardiovascular adaptation to simulated weightlessness.

artículo científico

Analysis of 2-d ultrasound cardiac strain imaging using joint probability density functions

artículo científico publicado en 2014

Analysis of shear strain imaging for classifying breast masses: Finite element and phantom results ⬇️

artículo científico publicado el 1 de noviembre de 2011

Anthropomorphic breast phantoms for testing elastography systems

artículo científico publicado en 2006

Attenuation estimation using spectral cross-correlation.

artículo científico publicado en 2007

Axial-shear strain imaging for differentiating benign and malignant breast masses

artículo científico publicado en 2010

Bayesian regularization applied to ultrasound strain imaging

artículo científico publicado en 2011

C-plane Reconstructions from Sheaf Acquisition for Ultrasound Electrode Vibration Elastography

artículo científico publicado en 2014

Carotid Plaque Strain Indices Were Correlated With Cognitive Performance in a Cohort With Advanced Atherosclerosis, and Traditional Doppler Measures Showed no Association

artículo científico publicado en 2020

Carotid atherosclerotic plaque instability and cognition determined by ultrasound-measured plaque strain in asymptomatic patients with significant stenosis

artículo científico publicado en 2017

Characterization of elastographic noise using the envelope of echo signals

artículo científico publicado en 1998

Characterization of tissue microstructure scatterer distribution with spectral correlation

scientific article published on 01 July 1993

Characterizing the compression-dependent viscoelastic properties of human hepatic pathologies using dynamic compression testing

artículo científico publicado en 2012

Classification of Symptomatic and Asymptomatic Patients with and without Cognitive Decline Using Non-invasive Carotid Plaque Strain Indices as Biomarkers.

artículo científico publicado en 2016

Coherence of Ultrasound Radiofrequency Echoes from the Liver Estimated Using Multi-Taper Calculation

artículo científico publicado en 2013

Comparison of Displacement Tracking Algorithms for in Vivo Electrode Displacement Elastography

artículo científico publicado en 2018

Comparison of cardiac displacement and strain imaging using ultrasound radiofrequency and envelope signals.

artículo científico publicado en 2012

Comparison of three dimensional strain volume reconstructions using SOUPR and wobbler based acquisitions: A phantom study

artículo científico publicado en 2016

Compression-dependent viscoelastic behavior of human cervix tissue

artículo científico publicado en 2010

Contrast-transfer improvement for electrode displacement elastography

artículo científico publicado en 2006

Correction for simultaneous catheter eccentricity and tilt in intravascular elastography

artículo científico publicado en 2003

Correlation analysis for angular compounding in strain imaging.

artículo científico publicado en 2007

Correlation analysis of three-dimensional strain imaging using ultrasound two-dimensional array transducers

artículo científico publicado en 2008

Correlation of RF signals during angular compounding

artículo científico publicado en 2005

Correlation of cognitive function with ultrasound strain indices in carotid plaque

artículo científico publicado en 2013

Correlation of ultrasonic scatterer size estimates for the statistical analysis and optimization of angular compounding

artículo científico publicado en 2004

Deep Learning for Carotid Plaque Segmentation using a Dilated U-Net Architecture

scientific article published on 01 July 2020

Delineation of Post-Procedure Ablation Regions with Electrode Displacement Elastography with a Comparison to Acoustic Radiation Force Impulse Imaging

artículo científico publicado en 2017

Dictionary Representations for Electrode Displacement Elastography

article

Direct strain estimation in elastography using spectral cross-correlation

artículo científico publicado en 2000

Displacement and strain estimation for evaluation of arterial wall stiffness using a familial hypercholesterolemia swine model of atherosclerosis

artículo científico publicado en 2012

Dynamic and quasi-static mechanical testing for characterization of the viscoelastic properties of human uterine tissue.

artículo científico publicado en 2015

Dynamic frame selection for in vivo ultrasound temperature estimation during radiofrequency ablation

artículo científico publicado en 2010

Efficient 3-D Reconstruction in Ultrasound Elastography via a Sparse Iteration Based on Markov Random Fields

artículo científico publicado en 2016

Elastographic axial resolution criteria: an experimental study

scientific article published on 01 January 2000

Elastographic dynamic range expansion using variable applied strains

artículo científico publicado en 1997

Elastographic imaging

scientific article published on 01 May 2000

Elastographic imaging of thermal lesions in liver in-vivo using diaphragmatic stimuli

artículo científico publicado en 2004

Elastographic imaging of thermal lesions in the liver in vivo following radiofrequency ablation: preliminary results

artículo científico publicado en 2002

Elastographic imaging using a handheld compressor

scientific article published on 01 January 2002

Elastographic measurement of the area and volume of thermal lesions resulting from radiofrequency ablation: pathologic correlation.

artículo científico publicado en 2003

Elastographic measurements of in-vivo radiofrequency ablation lesions of the kidney

artículo científico publicado en 2006

Elastographic versus x-ray CT imaging of radio frequency ablation coagulations: an in vitro study

artículo científico publicado en 2004

Elastography: Imaging the elastic properties of soft tissues with ultrasound.

artículo científico publicado en 2002

Enhancement of echo-signal correlation in elastography using temporal stretching

scientific article published on 01 January 1997

Estimating tissue strain from signal decorrelation using the correlation coefficient

artículo científico publicado en 1996

Estimation of displacement vectors and strain tensors in elastography using angular insonifications

artículo científico publicado en 2004

Estimation of the optimal maximum beam angle and angular increment for normal and shear strain estimation

artículo científico publicado en 2008

Estimation of ultrasound attenuation from broadband echo-signals using bandpass filtering

artículo científico publicado en 2008

Estimation of ultrasound strain indices in carotid plaque and correlation to cognitive dysfunction.

artículo científico publicado en 2014

Evaluation of acoustic wave propagation velocities in the ocular lens and vitreous tissues of pigs, dogs, and rabbits

scientific article published on 01 February 2006

Evaluation of the impact of backscatter intensity variations on ultrasound attenuation estimation.

artículo científico publicado en 2013

Experimental corroboration of the nonstationary strain estimation errors in elastography

artículo científico publicado en 2001

Exvivo ultrasound attenuation coefficient for human cervical and uterine tissue from 5 to 10 MHz

artículo científico publicado en 2010

Finite element analysis of tissue deformation with a radiofrequency ablation electrode for strain imaging

artículo científico publicado en 2007

GPU Accelerated Multilevel Lagrangian Carotid Strain Imaging

artículo científico publicado en 2018

Hierarchical Motion Estimation With Bayesian Regularization in Cardiac Elastography: Simulation and In Vivo Validation

scientific article published on 12 July 2019

Histopathologic Validation of Grayscale Carotid Plaque Characteristics Related to Plaque Vulnerability.

artículo científico

Hybrid spectral domain method for attenuation slope estimation

artículo científico publicado en 2008

Impact of gas bubbles generated during interstitial ablation on elastographic depiction of in vitro thermal lesions

artículo científico publicado en 2004

Impaired cognitive function in patients with atherosclerotic carotid stenosis and correlation with ultrasound strain measurements

artículo científico publicado en 2012

Improved Correlation of Strain Indices with Cognitive Dysfunction with Inclusion of Adventitial Layer with Carotid Plaque

artículo científico publicado en 2015

Improved parametric imaging of scatterer size estimates using angular compounding.

artículo científico publicado en 2004

Improvement of elastographic displacement estimation using a two-step cross-correlation method

artículo científico publicado en 2007

Improvements in elastographic contrast-to-noise ratio using spatial-angular compounding

artículo científico publicado en 2005

Improving thermal ablation delineation with electrode vibration elastography using a bidirectional wave propagation assumption.

artículo científico publicado en 2012

In Vivo Classification of Breast Masses Using Features Derived From Axial-Strain and Axial-Shear Images ⬇️

artículo científico publicado el 1 de octubre de 2012

In vitro uterine strain imaging: preliminary results

artículo científico publicado en 2007

In vivo carotid strain imaging using principal strains in longitudinal view

scientific article published on 17 April 2019

Initial clinical experience imaging scatterer size and strain in thyroid nodules.

artículo científico publicado en 2006

Interstitial diffuse optical probe with spectral fitting to measure dynamic tumor hypoxia

artículo científico publicado en 2020

Investigation of temperature-dependent viscoelastic properties of thermal lesions in ex vivo animal liver tissue

artículo científico publicado en 2009

Lagrangian carotid strain imaging indices normalized to blood pressure for vulnerable plaque

artículo científico publicado en 2019

Lagrangian displacement tracking using a polar grid between endocardial and epicardial contours for cardiac strain imaging

artículo científico publicado en 2012

Locally optimized correlation-guided Bayesian adaptive regularization for ultrasound strain imaging

scientific article published on 19 March 2020

Lower Bound on Estimation Variance of the Ultrasonic Attenuation Coefficient Using the Spectral-Difference Reference-phantom Method

artículo científico publicado en 2016

Mean scatterer spacing estimation in normal and thermally coagulated ex vivo bovine liver

artículo científico publicado en 2014

Mean scatterer spacing estimation using multi-taper coherence

artículo científico publicado en 2013

Mean-scatterer spacing estimates with spectral correlation

scientific article published on 01 December 1994

Measurement of tendon strain during muscle twitch contractions using ultrasound elastography.

artículo científico publicado en 2009

Methods for robust in vivo strain estimation in the carotid artery.

artículo científico publicado en 2012

Monitoring Microwave Ablation of Ex Vivo Bovine Liver Using Ultrasonic Attenuation Imaging

artículo científico publicado en 2017

Monitoring stiffness changes in lesions after radiofrequency ablation at different temperatures and durations of ablation

artículo científico publicado en 2005

Multilevel hybrid 2D strain imaging algorithm for ultrasound sector/phased arrays.

artículo científico publicado en 2009

Multiresolution imaging in elastography

scientific article published on 01 January 1998

Noise analysis and improvement of displacement vector estimation from angular displacements

artículo científico publicado en 2008

Noise reduction in elastograms using temporal stretching with multicompression averaging

artículo científico publicado en 1996

Noise reduction using spatial-angular compounding for elastography

artículo científico publicado en 2004

Non-invasive ultrasound-based temperature imaging for monitoring radiofrequency heating-phantom results

artículo científico publicado en 2007

Nonlinear stress-strain relationships in tissue and their effect on the contrast-to-noise ratio in elastograms

scientific article published on 01 June 2000

Normal and shear strain estimation using beam steering on linear-array transducers

artículo científico publicado en 2007

Normal and shear strain imaging using 2D deformation tracking on beam steered linear array datasets.

artículo científico publicado en 2013

Optimum Diffraction-Corrected Frequency-Shift Estimator of the Ultrasonic Attenuation Coefficient.

artículo científico publicado en 2016

Performance evaluation of the spectral centroid downshift method for attenuation estimation.

artículo científico publicado en 2015

Performance optimization in elastography: multicompression with temporal stretching

scientific article published on 01 July 1996

Phase aberration effects in elastography

scientific article published on 01 June 2001

Piecewise Linear Slope Estimation

artículo científico publicado en 2014

Post-Procedure Evaluation of Microwave Ablations of Hepatocellular Carcinomas Using Electrode Displacement Elastography

artículo científico publicado en 2016

Power spectral strain estimators in elastography

scientific article published on 01 September 1999

Preliminary in vivo atherosclerotic carotid plaque characterization using the accumulated axial strain and relative lateral shift strain indices

artículo científico publicado en 2008

Principal component analysis of shear strain effects

artículo científico publicado en 2009

Quantification of carotid artery plaque stability with multiple region of interest based ultrasound strain indices and relationship with cognition

artículo científico publicado en 2017

Quantifying local stiffness variations in radiofrequency ablations with dynamic indentation

artículo científico publicado en 2011

Quasi-Static Ultrasound Elastography

artículo científico publicado en 2009

Radio-frequency ablation electrode displacement elastography: a phantom study

artículo científico publicado en 2008

Radiofrequency electrode vibration-induced shear wave imaging for tissue modulus estimation: a simulation study

artículo científico publicado en 2010

Real-Time in Vivo Photoacoustic Imaging in the Assessment of Myocardial Dynamics in Murine Model of Myocardial Ischemia

scientific article published on 29 July 2018

Real-time calibration of temperature estimates during radiofrequency ablation

artículo científico publicado en 2004

Relationship between ultrasonic attenuation, size and axial strain parameters for ex vivo atherosclerotic carotid plaque

artículo científico publicado en 2008

Relative Elastic Modulus Imaging Using Sector Ultrasound Data for Abdominal Applications: An Evaluation of Strategies and Feasibility

artículo científico publicado en 2016

Scatterer number density considerations in reference phantom-based attenuation estimation

artículo científico publicado en 2014

Segmental Analysis of Cardiac Short-Axis Views Using Lagrangian Radial and Circumferential Strain

artículo científico publicado en 2015

Semiautomated thermal lesion segmentation for three-dimensional elastographic imaging.

artículo científico publicado en 2004

Shear strain imaging using shear deformations.

artículo científico publicado en 2008

Shear wave velocity imaging using transient electrode perturbation: phantom and ex vivo validation

artículo científico publicado en 2010

Signal to noise ratio comparisons for ultrasound attenuation slope estimation algorithms

artículo científico publicado en 2014

Simulation of ultrasound two-dimensional array transducers using a frequency domain model

artículo científico publicado en 2008

Spatial-angular compounding for elastography using beam steering on linear array transducers

artículo científico publicado en 2006

Spectral and scatterer-size correlation during angular compounding: simulations and experimental studies

artículo científico publicado en 2006

Spectral correlation in ultrasonic pulse echo signal processing.

artículo científico publicado en 1993

Spectral estimators in elastography

artículo científico publicado en 2000

Spherical lesion phantoms for testing the performance of elastography systems

artículo científico publicado en 2005

Stability of heterogeneous elastography phantoms made from oil dispersions in aqueous gels

artículo científico publicado en 2006

Statistics of ultrasonic scatterer size estimation with a reference phantom

artículo científico publicado en 2003

Stochastic piecewise linear function fitting with application to ultrasound shear wave imaging

artículo científico publicado en 2014

Temperature dependence of ultrasonic propagation speed and attenuation in canine tissue

artículo científico publicado en 2002

Temperature dependence of ultrasonic propagation speed and attenuation in excised canine liver tissue measured using transmitted and reflected pulses

artículo científico publicado en 2004

The Preservation of Cognition 1 Year After Carotid Endarterectomy in Patients With Prior Cognitive Decline

artículo científico publicado en 2017

The Ultrasonix 500RP: a commercial ultrasound research interface.

artículo científico publicado en 2006

The nonstationary strain filter in elastography: Part I. Frequency dependent attenuation ⬇️

artículo científico publicado el 1 de enero de 1997

The nonstationary strain filter in elastography: Part II. Lateral and elevational decorrelation

artículo científico publicado en 1997

The relationship between carotid artery plaque stability and white matter ischemic injury

artículo científico publicado en 2015

Theoretical and phantom based investigation of the impact of sound speed and backscatter variations on attenuation slope estimation.

artículo científico publicado en 2011

Theoretical bounds on the estimation of transverse displacement, transverse strain and Poisson's ratio in elastography

artículo científico publicado en 2000

Three dimensional shear wave elastographic reconstruction of ablations

artículo científico publicado en 2014

Three-dimensional canine heart model for cardiac elastography

artículo científico publicado en 2010

Three-dimensional sheaf of ultrasound planes reconstruction (SOUPR) of ablated volumes

artículo científico publicado en 2014

Tissue mimicking materials for the detection of prostate cancer using shear wave elastography: a validation study

artículo científico publicado en 2013

Tissue-mimicking agar/gelatin materials for use in heterogeneous elastography phantoms

artículo científico publicado en 2005

Tissue-mimicking oil-in-gelatin dispersions for use in heterogeneous elastography phantoms

artículo científico publicado en 2003

Tradeoffs in elastographic imaging

artículo científico publicado en 2001

Transcranial Doppler and Microemboli Detection: Relationships to Symptomatic Status and Histopathology Findings.

artículo científico publicado en 2017

Transrectal quantitative shear wave elastography in the detection and characterisation of prostate cancer

artículo científico publicado en 2013

Two-dimensional multi-level strain estimation for discontinuous tissue

artículo científico publicado en 2006

Ultrasonic attenuation estimation in small plaque samples using a power difference method

artículo científico publicado en 2007

Ultrasonic imaging of myocardial strain using cardiac elastography

scientific article published on 01 January 2003

Ultrasonic noninvasive temperature estimation using echoshift gradient maps: simulation results

scientific article published on 01 July 2005

Ultrasonic tracking of shear waves using a particle filter

artículo científico publicado en 2015

Ultrasound attenuation imaging using compound acquisition and processing.

artículo científico publicado en 2003

Ultrasound frame rate requirements for cardiac elastography: experimental and in vivo results

artículo científico publicado en 2008

Ultrasound monitoring of temperature change during radiofrequency ablation: preliminary in-vivo results.

artículo científico publicado en 2002

Ultrasound simulation of real-time temperature estimation during radiofrequency ablation using finite element models.

artículo científico publicado en 2007

Viscoelastic characterization of in vitro canine tissue

artículo científico publicado en 2004

Visualizing ex vivo radiofrequency and microwave ablation zones using electrode vibration elastography

artículo científico publicado en 2012

Wavelet denoising of displacement estimates in elastography

artículo científico publicado en 2004

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