Tomy Varghese, Ph.D - Publications

Affiliations: 
1990-1995 Electrical & Computer Engineering University of Kentucky, Lexington 
 1995-2000 Radiology University of Texas Health Science Center at Houston, Houston, TX, United States 
 2000- Medical Physics University of Wisconsin, Madison, Madison, WI 
Area:
Ultrasound, Elastography, Radiology, Oncology

169 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2019 Mukaddim RA, Meshram NH, Mitchell CC, Varghese T. Hierarchical Motion Estimation with Bayesian Regularization in Cardiac Elastography: Simulation and in-vivo Validation. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. PMID 31329553 DOI: 10.1109/TUFFC.2019.2928546  1
2019 Varghese T, Meshram NH, Mitchell CC, Wilbrand SM, Hermann BP, Dempsey RJ. Lagrangian carotid strain imaging indices normalized to blood pressure for vulnerable plaque. Journal of Clinical Ultrasound : Jcu. PMID 31168787 DOI: 10.1002/jcu.22739  1
2019 Pohlman RM, Turney MR, Wu PH, Brace CL, Ziemlewicz TJ, Varghese T. 2D US-CT Image Registration for Monitoring Percutaneous Hepatic Intervention. Medical Physics. PMID 31009079 DOI: 10.1002/mp.13554  1
2018 Dempsey RJ, Jackson DC, Wilbrand SM, Mitchell CC, Berman SE, Johnson SC, Meshram NH, Varghese T, Hermann BP. In Reply: The Preservation of Cognition 1 Year After Carotid Endarterectomy in Patients With Prior Cognitive Decline. Neurosurgery. 83: E181. PMID 31222269 DOI: 10.1093/neuros/nyy325  1
2018 Ingle AN, Varghese T. A kernel smoothing algorithm for ablation visualization in ultrasound elastography. Ultrasonics. PMID 30723026 DOI: 10.1016/j.ultras.2018.12.006  1
2018 Pohlman RM, Varghese T, Jiang J, Ziemlewicz TJ, Alexander ML, Wergin KL, Hinshaw JL, Lubner MG, Wells SA, Lee FT. Comparison of Displacement Tracking Algorithms for in Vivo Electrode Displacement Elastography. Ultrasound in Medicine & Biology. PMID 30318122 DOI: 10.1016/j.ultrasmedbio.2018.09.001  1
2018 Pohlman RM, Varghese T. Dictionary Representations for Electrode Displacement Elastography. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. PMID 30296219 DOI: 10.1109/TUFFC.2018.2874181  0.52
2018 Mukaddim RA, Rodgers A, Hacker TA, Heinmiller A, Varghese T. Real-Time in Vivo Photoacoustic Imaging in the Assessment of Myocardial Dynamics in Murine Model of Myocardial Ischemia. Ultrasound in Medicine & Biology. PMID 30064849 DOI: 10.1016/j.ultrasmedbio.2018.05.021  0.68
2018 Steffel CN, Brown R, Korcarz CE, Varghese T, Stein JH, Wilbrand SM, Dempsey RJ, Mitchell CC. Influence of Ultrasound System and Gain on Grayscale Median Values. Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine. PMID 30027550 DOI: 10.1002/jum.14690  1
2018 Meshram NH, Varghese T. GPU Accelerated Multilevel Lagrangian Carotid Strain Imaging. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. PMID 29993716 DOI: 10.1109/TUFFC.2018.2841346  1
2017 Mitchell CC, Wilbrand SM, Kundu B, Steffel CN, Varghese T, Meshram NH, Li G, Cook TD, Salamat MS, Dempsey RJ. Transcranial Doppler and Microemboli Detection: Relationships to Symptomatic Status and Histopathology Findings. Ultrasound in Medicine & Biology. PMID 28645797 DOI: 10.1016/j.ultrasmedbio.2017.04.025  1
2017 Yang W, Varghese T, Ziemlewicz T, Alexander M, Lubner M, Hinshaw JL, Wells S, Lee FT. Delineation of Post-procedure Ablation Regions with Electrode Displacement Elastography with a Comparison to Acoustic Radiation Force Impulse Imaging. Ultrasound in Medicine & Biology. PMID 28595851 DOI: 10.1016/j.ultrasmedbio.2017.04.021  1
2017 Meshram N, Varghese T, Mitchell C, Jackson D, Wilbrand S, Hermann B, Dempsey R. Quantification of carotid artery plaque stability with multiple region of interest based ultrasound strain indices and relationship with cognition. Physics in Medicine and Biology. PMID 28594333 DOI: 10.1088/1361-6560/aa781f  1
2017 Dempsey RJ, Jackson DC, Wilbrand SM, Mitchell CC, Berman SE, Johnson SC, Meshram NH, Varghese T, Hermann BP. The Preservation of Cognition 1 Yr After Carotid Endarterectomy in Patients With Prior Cognitive Decline. Neurosurgery. PMID 28575478 DOI: 10.1093/neuros/nyx173  1
2017 Samimi K, White JK, Brace CL, Varghese T. Monitoring Microwave Ablation of Ex Vivo Bovine Liver Using Ultrasonic Attenuation Imaging. Ultrasound in Medicine & Biology. PMID 28454843 DOI: 10.1016/j.ultrasmedbio.2017.03.010  1
2017 Samimi K, Varghese T. Lower Bound on Estimation Variance of the Ultrasonic Attenuation Coefficient Using the Spectral-Difference Reference-phantom Method. Ultrasonic Imaging. 39: 151-171. PMID 28425388 DOI: 10.1177/0161734616674329  1
2017 Dempsey RJ, Varghese T, Jackson DC, Wang X, Meshram NH, Mitchell CC, Hermann BP, Johnson SC, Berman SE, Wilbrand SM. Carotid atherosclerotic plaque instability and cognition determined by ultrasound-measured plaque strain in asymptomatic patients with significant stenosis. Journal of Neurosurgery. 1-9. PMID 28298048 DOI: 10.3171/2016.10.JNS161299  1
2016 Samimi K, Varghese T. Optimum Diffraction-Corrected Frequency-Shift Estimator of the Ultrasonic Attenuation Coefficient. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. PMID 28113460 DOI: 10.1109/TUFFC.2016.2538719  1
2016 Ingle A, Varghese T, Sethares W. Efficient 3D Reconstruction in Ultrasound Elastography via a Sparse Iteration based on Markov Random Fields. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. PMID 27913340 DOI: 10.1109/TUFFC.2016.2633429  1
2016 Mitchell CC, Stein JH, Cook TD, Salamat S, Wang X, Varghese T, Jackson DC, Sandoval Garcia C, Wilbrand SM, Dempsey RJ. Histopathologic Validation of Grayscale Carotid Plaque Characteristics Related to Plaque Vulnerability. Ultrasound in Medicine & Biology. PMID 27720278 DOI: 10.1016/j.ultrasmedbio.2016.08.011  1
2016 Yang W, Ziemlewicz TJ, Varghese T, Alexander ML, Rubert N, Ingle AN, Lubner MG, Hinshaw JL, Wells SA, Lee FT, Zagzebski JA. Post-procedure Evaluation of Microwave Ablations of Hepatocellular Carcinomas Using Electrode Displacement Elastography. Ultrasound in Medicine & Biology. PMID 27592561 DOI: 10.1016/j.ultrasmedbio.2016.07.015  1
2016 Peng B, Wang Y, Wang W, Varghese T, Jiang J. Elastic Modulus Imaging Using Sector Ultrasound Data for Abdominal Applications: An Evaluation of Strategies and Feasibility. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. PMID 27411219 DOI: 10.1109/TUFFC.2016.2589270  1
2016 Yang W, Ingle A, Varghese T. Comparison of three dimensional strain volume reconstructions using SOUPR and wobbler based acquisitions: A phantom study. Medical Physics. 43: 1615. PMID 27036561 DOI: 10.1118/1.4942814  1
2016 Samimi K, Varghese T. Optimum Diffraction-Corrected Frequency-Shift Estimator of the Ultrasonic Attenuation Coefficient. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. PMID 26960224 DOI: 10.1109/TUFFC.2016.2538719  1
2016 Wang X, Jackson DC, Mitchell CC, Varghese T, Wilbrand SM, Rocque BG, Hermann BP, Dempsey RJ. Classification of Symptomatic and Asymptomatic Patients with and without Cognitive Decline Using Non-invasive Carotid Plaque Strain Indices as Biomarkers. Ultrasound in Medicine & Biology. PMID 26778288 DOI: 10.1016/j.ultrasmedbio.2015.11.025  1
2015 Ma C, Wang X, Varghese T. Segmental Analysis of Cardiac Short-Axis Views Using Lagrangian Radial and Circumferential Strain. Ultrasonic Imaging. PMID 26578642 DOI: 10.1177/0161734615613322  1
2015 Ingle AN, Ma C, Varghese T. Ultrasonic tracking of shear waves using a particle filter. Medical Physics. 42: 6711. PMID 26520761 DOI: 10.1118/1.4934372  1
2015 Berman SE, Wang X, Mitchell CC, Kundu B, Jackson DC, Wilbrand SM, Varghese T, Hermann BP, Rowley HA, Johnson SC, Dempsey RJ. The relationship between carotid artery plaque stability and white matter ischemic injury. Neuroimage. Clinical. 9: 216-22. PMID 26448914 DOI: 10.1016/j.nicl.2015.08.011  1
2015 Omari EA, Varghese T, Kliewer MA, Harter J, Hartenbach EM. Dynamic and quasi-static mechanical testing for characterization of the viscoelastic properties of human uterine tissue. Journal of Biomechanics. 48: 1730-6. PMID 26072212 DOI: 10.1016/j.jbiomech.2015.05.013  1
2015 Samimi K, Varghese T. Performance evaluation of the spectral centroid downshift method for attenuation estimation. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. 62: 871-80. PMID 25965681 DOI: 10.1109/TUFFC.2014.006945  1
2015 Ingle A, Bucklew J, Sethares W, Varghese T. Slope Estimation in Noisy Piecewise Linear Functions. Signal Processing. 108: 576-588. PMID 25419020 DOI: 10.1016/j.sigpro.2014.10.003  1
2014 Rubert N, Varghese T. Alterations in Ultrasound Scattering Following Thermal Ablation in ex vivo Bovine Liver. Ieee International Ultrasonics Symposium : [Proceedings]. Ieee International Ultrasonics Symposium. 2014: 1904-1907. PMID 26185596 DOI: 10.1109/ULTSYM.2014.0473  1
2014 Ingle A, Varghese T, Sethares W, Bucklew J. Stochastic piecewise linear function fitting with application to ultrasound shear wave imaging. Conference Proceedings : ... Annual International Conference of the Ieee Engineering in Medicine and Biology Society. Ieee Engineering in Medicine and Biology Society. Annual Conference. 2014: 2861-4. PMID 25570588 DOI: 10.1109/EMBC.2014.6944220  1
2014 Ingle A, Varghese T. Three dimensional shear wave elastographic reconstruction of ablations. Conference Proceedings : ... Annual International Conference of the Ieee Engineering in Medicine and Biology Society. Ieee Engineering in Medicine and Biology Society. Annual Conference. 2014: 2857-60. PMID 25570587 DOI: 10.1109/EMBC.2014.6944219  1
2014 Ingle A, Varghese T. C-plane Reconstructions from Sheaf Acquisition for Ultrasound Electrode Vibration Elastography. Proceedings / Ieee ... Ultrasonics Symposium. Ieee Ultrasonics Symposium. 2014: 1826-1829. PMID 25530690 DOI: 10.1109/ULTSYM.2014.0453  1
2014 Ingle A, Varghese T. Three-dimensional sheaf of ultrasound planes reconstruction (SOUPR) of ablated volumes. Ieee Transactions On Medical Imaging. 33: 1677-88. PMID 24808405 DOI: 10.1109/TMI.2014.2321285  1
2014 Rubert N, Varghese T. Scatterer number density considerations in reference phantom-based attenuation estimation. Ultrasound in Medicine & Biology. 40: 1680-96. PMID 24726800 DOI: 10.1016/j.ultrasmedbio.2014.01.022  1
2014 Ma C, Varghese T. Analysis of 2-d ultrasound cardiac strain imaging using joint probability density functions. Ultrasound in Medicine & Biology. 40: 1118-32. PMID 24613642 DOI: 10.1016/j.ultrasmedbio.2013.12.028  1
2014 Omari EA, Varghese T. Signal to noise ratio comparisons for ultrasound attenuation slope estimation algorithms. Medical Physics. 41: 032902. PMID 24593741 DOI: 10.1118/1.4865781  1
2014 Rubert N, Varghese T. Mean scatterer spacing estimation in normal and thermally coagulated ex vivo bovine liver. Ultrasonic Imaging. 36: 79-97. PMID 24554290 DOI: 10.1177/0161734613511232  1
2014 Wang X, Jackson DC, Varghese T, Mitchell CC, Hermann BP, Kliewer MA, Dempsey RJ. Correlation of cognitive function with ultrasound strain indices in carotid plaque. Ultrasound in Medicine & Biology. 40: 78-89. PMID 24120415 DOI: 10.1016/j.ultrasmedbio.2013.08.001  1
2014 Rubert N, Varghese T. The effect of low scatterer number density on ultrasound attenuation estimation Ieee International Ultrasonics Symposium, Ius. 2418-2421. DOI: 10.1109/ULTSYM.2014.0603  1
2013 Rubert N, Varghese T. Coherence of Ultrasound Radiofrequency Echoes from the Liver Estimated Using Multi-Taper Calculation. Proceedings / Ieee International Symposium On Biomedical Imaging: From Nano to Macro. Ieee International Symposium On Biomedical Imaging. 2013: 724-727. PMID 25404995 DOI: 10.1109/ISBI.2013.6556577  1
2013 Ingle A, Varghese T. A COMPARISON OF MODEL BASED AND DIRECT OPTIMIZATION BASED FILTERING ALGORITHMS FOR SHEARWAVE VELOCITY RECONSTRUCTION FOR ELECTRODE VIBRATION ELASTOGRAPHY. Proceedings / Ieee International Symposium On Biomedical Imaging: From Nano to Macro. Ieee International Symposium On Biomedical Imaging. 2013: 760-763. PMID 25285187 DOI: 10.1109/ISBI.2013.6556586  1
2013 Rubert N, Varghese T. Mean scatterer spacing estimation using multi-taper coherence. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. 60: 1061-73. PMID 25004470 DOI: 10.1109/TUFFC.2013.2670  1
2013 Omari EA, Varghese T, Madsen EL, Frank G. Evaluation of the impact of backscatter intensity variations on ultrasound attenuation estimation. Medical Physics. 40: 082904. PMID 23927359 DOI: 10.1118/1.4816305  1
2013 Ahmad S, Cao R, Varghese T, Bidaut L, Nabi G. Transrectal quantitative shear wave elastography in the detection and characterisation of prostate cancer. Surgical Endoscopy. 27: 3280-7. PMID 23525883 DOI: 10.1007/s00464-013-2906-7  1
2013 McCormick MM, Varghese T. An approach to unbiased subsample interpolation for motion tracking. Ultrasonic Imaging. 35: 76-87. PMID 23493609 DOI: 10.1177/0161734613476176  1
2013 Cao R, Huang Z, Varghese T, Nabi G. Tissue mimicking materials for the detection of prostate cancer using shear wave elastography: a validation study. Medical Physics. 40: 022903. PMID 23387774 DOI: 10.1118/1.4773315  1
2013 Xu H, Varghese T. Normal and shear strain imaging using 2D deformation tracking on beam steered linear array datasets. Medical Physics. 40: 012902. PMID 23298118 DOI: 10.1118/1.4770272  1
2013 Ma C, Varghese T. Comparison of cardiac displacement and strain imaging using ultrasound radiofrequency and envelope signals. Ultrasonics. 53: 782-92. PMID 23259981 DOI: 10.1016/j.ultras.2012.11.005  1
2012 Ge W, Krueger CG, Weichmann A, Shanmuganayagam D, Varghese T. Displacement and strain estimation for evaluation of arterial wall stiffness using a familial hypercholesterolemia swine model of atherosclerosis. Medical Physics. 39: 4483-4492. PMID 28516609 DOI: 10.1118/1.4722746  1
2012 Xu H, Varghese T, Jiang J, Zagzebski JA. In vivo classification of breast masses using features derived from axial-strain and axial-shear images. Ultrasonic Imaging. 34: 222-36. PMID 23160475 DOI: 10.1177/0161734612465520  1
2012 Dewall RJ, Varghese T, Brace CL. Visualizing ex vivo radiofrequency and microwave ablation zones using electrode vibration elastography. Medical Physics. 39: 6692-700. PMID 23127063 DOI: 10.1118/1.4758061  1
2012 Ge W, Krueger CG, Weichmann A, Shanmuganayagam D, Varghese T. Displacement and strain estimation for evaluation of arterial wall stiffness using a familial hypercholesterolemia swine model of atherosclerosis. Medical Physics. 39: 4483-92. PMID 22830780 DOI: 10.1118/1.4722746  1
2012 Rocque BG, Jackson D, Varghese T, Hermann B, McCormick M, Kliewer M, Mitchell C, Dempsey RJ. Impaired cognitive function in patients with atherosclerotic carotid stenosis and correlation with ultrasound strain measurements. Journal of the Neurological Sciences. 322: 20-4. PMID 22658531 DOI: 10.1016/j.jns.2012.05.020  1
2012 Ma C, Varghese T. Lagrangian displacement tracking using a polar grid between endocardial and epicardial contours for cardiac strain imaging. Medical Physics. 39: 1779-92. PMID 22482601 DOI: 10.1118/1.3691905  1
2012 DeWall RJ, Bharat S, Varghese T, Hanson ME, Agni RM, Kliewer MA. Characterizing the compression-dependent viscoelastic properties of human hepatic pathologies using dynamic compression testing. Physics in Medicine and Biology. 57: 2273-86. PMID 22459948 DOI: 10.1088/0031-9155/57/8/2273  1
2012 Omari EA, Varghese T, Kliewer MA. A novel saline infusion sonohysterography-based strain imaging approach for evaluation of uterine abnormalities in vivo: preliminary results. Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine. 31: 609-15. PMID 22441918  1
2012 DeWall RJ, Varghese T. Improving thermal ablation delineation with electrode vibration elastography using a bidirectional wave propagation assumption. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. 59: 168-73. PMID 22293748 DOI: 10.1109/TUFFC.2012.2169  1
2012 DeWall RJ, Varghese T, Brace CL. Quantifying local stiffness variations in radiofrequency ablations with dynamic indentation. Ieee Transactions On Bio-Medical Engineering. 59: 728-35. PMID 22167553 DOI: 10.1109/TBME.2011.2178848  1
2011 Xu H, Varghese T, Madsen EL. Analysis of shear strain imaging for classifying breast masses: finite element and phantom results. Medical Physics. 38: 6119-27. PMID 22047376 DOI: 10.1118/1.3651461  1
2011 McCormick MM, Madsen EL, Deaner ME, Varghese T. Absolute backscatter coefficient estimates of tissue-mimicking phantoms in the 5-50 MHz frequency range. The Journal of the Acoustical Society of America. 130: 737-43. PMID 21877789 DOI: 10.1121/1.3605669  1
2011 Omari E, Lee H, Varghese T. Theoretical and phantom based investigation of the impact of sound speed and backscatter variations on attenuation slope estimation. Ultrasonics. 51: 758-67. PMID 21477832 DOI: 10.1016/j.ultras.2011.03.004  1
2011 McCormick M, Rubert N, Varghese T. Bayesian regularization applied to ultrasound strain imaging. Ieee Transactions On Bio-Medical Engineering. 58: 1612-20. PMID 21245002 DOI: 10.1109/TBME.2011.2106500  1
2011 Kiss MZ, Varghese T, Kliewer MA. Exvivo ultrasound attenuation coefficient for human cervical and uterine tissue from 5 to 10 MHz. Ultrasonics. 51: 467-71. PMID 21163508 DOI: 10.1016/j.ultras.2010.11.012  1
2011 DeWall RJ, Varghese T, Madsen EL. Shear wave velocity imaging using transient electrode perturbation: phantom and ex vivo validation. Ieee Transactions On Medical Imaging. 30: 666-78. PMID 21075719 DOI: 10.1109/TMI.2010.2091412  1
2011 Samimi K, Varghese T. Ultrasonic attenuation imaging using spectral cross-correlation and the reference phantom method Ieee International Ultrasonics Symposium, Ius. 53-55. DOI: 10.1109/ULTSYM.2011.0014  1
2010 DeWall RJ, Varghese T, Kliewer MA, Harter JM, Hartenbach EM. Compression-dependent viscoelastic behavior of human cervix tissue. Ultrasonic Imaging. 32: 214-28. PMID 21213567  1
2010 Chen H, Varghese T. Three-dimensional canine heart model for cardiac elastography. Medical Physics. 37: 5876-86. PMID 21158300 DOI: 10.1118/1.3496326  1
2010 Bharat S, Varghese T. Radiofrequency electrode vibration-induced shear wave imaging for tissue modulus estimation: a simulation study. The Journal of the Acoustical Society of America. 128: 1582-5. PMID 20968329 DOI: 10.1121/1.3466880  1
2010 Xu H, Rao M, Varghese T, Sommer A, Baker S, Hall TJ, Sisney GA, Burnside ES. Axial-shear strain imaging for differentiating benign and malignant breast masses. Ultrasound in Medicine & Biology. 36: 1813-24. PMID 20800948 DOI: 10.1016/j.ultrasmedbio.2010.07.008  1
2010 Daniels MJ, Varghese T. Dynamic frame selection for in vivo ultrasound temperature estimation during radiofrequency ablation. Physics in Medicine and Biology. 55: 4735-53. PMID 20671353 DOI: 10.1088/0031-9155/55/16/008  1
2010 Dempsey RJ, Vemuganti R, Varghese T, Hermann BP. A review of carotid atherosclerosis and vascular cognitive decline: a new understanding of the keys to symptomology. Neurosurgery. 67: 484-93; discussion 4. PMID 20644437 DOI: 10.1227/01.NEU.0000371730.11404.36  1
2010 Rubert N, Bharat S, DeWall RJ, Andreano A, Brace C, Jiang J, Sampson L, Varghese T. Electrode displacement strain imaging of thermally-ablated liver tissue in an in vivo animal model. Medical Physics. 37: 1075-82. PMID 20384243 DOI: 10.1118/1.3301603  1
2010 Jiang J, Brace C, Andreano A, DeWall RJ, Rubert N, Fisher TG, Varghese T, Lee F, Hall TJ. Ultrasound-based relative elastic modulus imaging for visualizing thermal ablation zones in a porcine model. Physics in Medicine and Biology. 55: 2281-306. PMID 20354279 DOI: 10.1088/0031-9155/55/8/011  1
2010 Omari EA, Varghese T, Kliewer MA. Ultrasound saline infused sonohysterography based in-vivo strain imaging for the evaluation of uterine abnormalities Proceedings - Ieee Ultrasonics Symposium. 1368-1371. DOI: 10.1109/ULTSYM.2010.5935809  1
2009 Varghese T. Quasi-Static Ultrasound Elastography. Ultrasound Clinics. 4: 323-338. PMID 20798841 DOI: 10.1016/j.cult.2009.10.009  1
2009 Shi H, Varghese T, Mitchell CC, McCormick M, Dempsey RJ, Kliewer MA. In vivo attenuation and equivalent scatterer size parameters for atherosclerotic carotid plaque: preliminary results. Ultrasonics. 49: 779-85. PMID 19640556 DOI: 10.1016/j.ultras.2009.06.004  1
2009 Chen H, Varghese T. Multilevel hybrid 2D strain imaging algorithm for ultrasound sector/phased arrays. Medical Physics. 36: 2098-106. PMID 19610299 DOI: 10.1118/1.3121426  1
2009 Kiss MZ, Daniels MJ, Varghese T. Investigation of temperature-dependent viscoelastic properties of thermal lesions in ex vivo animal liver tissue. Journal of Biomechanics. 42: 959-66. PMID 19362313 DOI: 10.1016/j.jbiomech.2009.03.002  1
2009 Rao M, Varghese T. Estimation of the optimal maximum beam angle and angular increment for normal and shear strain estimation. Ieee Transactions On Bio-Medical Engineering. 56: 760-9. PMID 19272930 DOI: 10.1109/TBME.2008.2005907  1
2009 Jiang J, Varghese T, Brace CL, Madsen EL, Hall TJ, Bharat S, Hobson MA, Zagzebski JA, Lee FT. Young's modulus reconstruction for radio-frequency ablation electrode-induced displacement fields: a feasibility study. Ieee Transactions On Medical Imaging. 28: 1325-34. PMID 19258195 DOI: 10.1109/TMI.2009.2015355  1
2009 Farron J, Varghese T, Thelen DG. Measurement of tendon strain during muscle twitch contractions using ultrasound elastography. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. 56: 27-35. PMID 19213629 DOI: 10.1109/TUFFC.2009.1002  1
2009 Chen H, Varghese T. Principal component analysis of shear strain effects. Ultrasonics. 49: 472-83. PMID 19201435 DOI: 10.1016/j.ultras.2008.12.003  1
2009 Chen H, Varghese T, Rahko PS, Zagzebski JA. Ultrasound frame rate requirements for cardiac elastography: experimental and in vivo results. Ultrasonics. 49: 98-111. PMID 18657839 DOI: 10.1016/j.ultras.2008.05.007  1
2008 Rao M, Varghese T, Zagzebski JA. Simulation of ultrasound two-dimensional array transducers using a frequency domain model. Medical Physics. 35: 3162-3169. PMID 28513017 DOI: 10.1118/1.2940158  1
2008 Rao M, Varghese T. Correlation analysis of three-dimensional strain imaging using ultrasound two-dimensional array transducers. The Journal of the Acoustical Society of America. 124: 1858-65. PMID 19045676 DOI: 10.1121/1.2953310  1
2008 Shi H, Mitchell CC, McCormick M, Kliewer MA, Dempsey RJ, Varghese T. Preliminary in vivo atherosclerotic carotid plaque characterization using the accumulated axial strain and relative lateral shift strain indices. Physics in Medicine and Biology. 53: 6377-94. PMID 18941278 DOI: 10.1088/0031-9155/53/22/008  1
2008 Rao M, Varghese T, Zagzebski JA. Simulation of ultrasound two-dimensional array transducers using a frequency domain model. Medical Physics. 35: 3162-9. PMID 18697541 DOI: 10.1118/1.2940158  1
2008 Bharat S, Varghese T, Madsen EL, Zagzebski JA. Radio-frequency ablation electrode displacement elastography: a phantom study. Medical Physics. 35: 2432-42. PMID 18649476 DOI: 10.1118/1.2919763  1
2008 Kim H, Varghese T. Hybrid spectral domain method for attenuation slope estimation. Ultrasound in Medicine & Biology. 34: 1808-19. PMID 18621468 DOI: 10.1016/j.ultrasmedbio.2008.04.011  1
2008 Chen H, Varghese T. Noise analysis and improvement of displacement vector estimation from angular displacements. Medical Physics. 35: 2007-17. PMID 18561677 DOI: 10.1118/1.2905024  1
2008 Kim H, Zagzebski JA, Varghese T. Estimation of ultrasound attenuation from broadband echo-signals using bandpass filtering. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. 55: 1153-9. PMID 18519224 DOI: 10.1109/TUFFC.2008.768  1
2008 Hobson MA, Madsen EL, Frank GR, Jiang J, Shi H, Hall TJ, Varghese T. Anthropomorphic phantoms for assessment of strain imaging methods involving saline-infused sonohysterography. Ultrasound in Medicine & Biology. 34: 1622-37. PMID 18514999 DOI: 10.1016/j.ultrasmedbio.2008.02.013  1
2008 Shi H, Varghese T, Dempsey RJ, Salamat MS, Zagzebski JA. Relationship between ultrasonic attenuation, size and axial strain parameters for ex vivo atherosclerotic carotid plaque. Ultrasound in Medicine & Biology. 34: 1666-77. PMID 18490099 DOI: 10.1016/j.ultrasmedbio.2008.02.014  1
2008 Rao M, Varghese T, Madsen EL. Shear strain imaging using shear deformations. Medical Physics. 35: 412-23. PMID 18383661 DOI: 10.1118/1.2825621  1
2008 Bharat S, Fisher TG, Varghese T, Hall TJ, Jiang J, Madsen EL, Zagzebski JA, Lee FT. Three-dimensional electrode displacement elastography using the Siemens C7F2 fourSight four-dimensional ultrasound transducer. Ultrasound in Medicine & Biology. 34: 1307-16. PMID 18374467 DOI: 10.1016/j.ultrasmedbio.2008.01.007  1
2008 Daniels MJ, Jiang J, Varghese T. Ultrasound simulation of real-time temperature estimation during radiofrequency ablation using finite element models. Ultrasonics. 48: 40-55. PMID 18082236 DOI: 10.1016/j.ultras.2007.10.005  1
2007 Rao M, Varghese T. Correlation analysis for angular compounding in strain imaging. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. 54: 1903-7. PMID 17941397 DOI: 10.1109/TUFFC.2007.475  1
2007 Daniels MJ, Varghese T, Madsen EL, Zagzebski JA. Non-invasive ultrasound-based temperature imaging for monitoring radiofrequency heating-phantom results. Physics in Medicine and Biology. 52: 4827-43. PMID 17671338 DOI: 10.1088/0031-9155/52/16/008  1
2007 Hobson MA, Kiss MZ, Varghese T, Sommer AM, Kliewer MA, Zagzebski JA, Hall TJ, Harter J, Hartenbach EM, Madsen EL. In vitro uterine strain imaging: preliminary results. Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine. 26: 899-908. PMID 17592053  1
2007 Shi H, Tu H, Dempsey RJ, Varghese T. Ultrasonic attenuation estimation in small plaque samples using a power difference method. Ultrasonic Imaging. 29: 15-30. PMID 17491296  1
2007 Kim H, Varghese T. Attenuation estimation using spectral cross-correlation. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. 54: 510-9. PMID 17375820 DOI: 10.1109/TUFFC.2007.274  1
2007 Jiang J, Varghese T, Chen Q, Hall TJ, Zagzebski JA. Finite element analysis of tissue deformation with a radiofrequency ablation electrode for strain imaging. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. 54: 281-9. PMID 17328325 DOI: 10.1109/TUFFC.2007.242  1
2007 Shi H, Varghese T. Two-dimensional multi-level strain estimation for discontinuous tissue. Physics in Medicine and Biology. 52: 389-401. PMID 17202622 DOI: 10.1088/0031-9155/52/2/006  1
2007 Rao M, Chen Q, Shi H, Varghese T, Madsen EL, Zagzebski JA, Wilson TA. Normal and shear strain estimation using beam steering on linear-array transducers. Ultrasound in Medicine & Biology. 33: 57-66. PMID 17189047 DOI: 10.1016/j.ultrasmedbio.2006.07.027  1
2007 Chen H, Shi H, Varghese T. Improvement of elastographic displacement estimation using a two-step cross-correlation method. Ultrasound in Medicine & Biology. 33: 48-56. PMID 17189046 DOI: 10.1016/j.ultrasmedbio.2006.07.022  1
2006 Bharat S, Varghese T. Contrast-transfer improvement for electrode displacement elastography. Physics in Medicine and Biology. 51: 6403-18. PMID 17148825 DOI: 10.1088/0031-9155/51/24/008  1
2006 Pareek G, Wilkinson ER, Bharat S, Varghese T, Laeseke PF, Lee FT, Warner TF, Zagzebski JA, Nakada SY. Elastographic measurements of in-vivo radiofrequency ablation lesions of the kidney. Journal of Endourology / Endourological Society. 20: 959-64. PMID 17144871 DOI: 10.1089/end.2006.20.959  1
2006 Wilson T, Zagzebski J, Varghese T, Chen Q, Rao M. The Ultrasonix 500RP: a commercial ultrasound research interface. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. 53: 1772-82. PMID 17036786  1
2006 Rao M, Chen Q, Shi H, Varghese T. Spatial-angular compounding for elastography using beam steering on linear array transducers. Medical Physics. 33: 618-26. PMID 16878565 DOI: 10.1118/1.2168429  1
2006 Wilson T, Chen Q, Zagzebski JA, Varghese T, VanMiddlesworth L. Initial clinical experience imaging scatterer size and strain in thyroid nodules. Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine. 25: 1021-9. PMID 16870895  1
2006 Kiss MZ, Hobson MA, Varghese T, Harter J, Kliewer MA, Hartenbach EM, Zagzebski JA. Frequency-dependent complex modulus of the uterus: preliminary results. Physics in Medicine and Biology. 51: 3683-95. PMID 16861774 DOI: 10.1088/0031-9155/51/15/006  1
2006 Rao M, Varghese T. Correlation analysis of the beam angle dependence for elastography. The Journal of the Acoustical Society of America. 119: 4093-101. PMID 16838551 DOI: 10.1109/ULTSYM.2006.315  1
2006 Madsen EL, Hobson MA, Frank GR, Shi H, Jiang J, Hall TJ, Varghese T, Doyley MM, Weaver JB. Anthropomorphic breast phantoms for testing elastography systems. Ultrasound in Medicine & Biology. 32: 857-74. PMID 16785008 DOI: 10.1016/j.ultrasmedbio.2006.02.1428  1
2006 Liu W, Zagzebski JA, Varghese T, Dyer CR, Techavipoo U, Hall TJ. Segmentation of elastographic images using a coarse-to-fine active contour model. Ultrasound in Medicine & Biology. 32: 397-408. PMID 16530098 DOI: 10.1016/j.ultrasmedbio.2005.11.011  1
2006 Madsen EL, Hobson MA, Shi H, Varghese T, Frank GR. Stability of heterogeneous elastography phantoms made from oil dispersions in aqueous gels. Ultrasound in Medicine & Biology. 32: 261-70. PMID 16464671 DOI: 10.1016/j.ultrasmedbio.2005.10.009  1
2006 Görig C, Varghese T, Stiles T, van den Broek J, Zagzebski JA, Murphy CJ. Evaluation of acoustic wave propagation velocities in the ocular lens and vitreous tissues of pigs, dogs, and rabbits. American Journal of Veterinary Research. 67: 288-95. PMID 16454635 DOI: 10.2460/ajvr.67.2.288  1
2006 Kim H, Zagzebski JA, Varghese T. Attenuation estimations from B-mode image data derived using bandpass filtering Proceedings - Ieee Ultrasonics Symposium. 1: 2076-2079. DOI: 10.1109/ULTSYM.2006.526  1
2006 Kim H, Varghese T. Performance comparison of attenuation estimation techniques Proceedings - Ieee Ultrasonics Symposium. 1: 1722-1725. DOI: 10.1109/ULTSYM.2006.434  1
2006 Rao M, Madsen EL, Varghese T. Shear strain imaging with shear deformation Proceedings - Ieee Ultrasonics Symposium. 1: 1274-1277. DOI: 10.1109/ULTSYM.2006.326  1
2005 Rao M, Varghese T. Spatial angular compounding for elastography without the incompressibility assumption. Ultrasonic Imaging. 27: 256-70. PMID 16761786  1
2005 Techavipoo U, Chen Q, Varghese T. Ultrasonic noninvasive temperature estimation using echoshift gradient maps: simulation results. Ultrasonic Imaging. 27: 166-80. PMID 16550706  1
2005 Madsen EL, Frank GR, Hobson MA, Shi H, Jiang J, Varghese T, Hall TJ. Spherical lesion phantoms for testing the performance of elastography systems. Physics in Medicine and Biology. 50: 5983-95. PMID 16333168 DOI: 10.1088/0031-9155/50/24/015  1
2005 Madsen EL, Hobson MA, Shi H, Varghese T, Frank GR. Tissue-mimicking agar/gelatin materials for use in heterogeneous elastography phantoms. Physics in Medicine and Biology. 50: 5597-618. PMID 16306655 DOI: 10.1088/0031-9155/50/23/013  1
2005 Shi H, Chen Q, Varghese T. A general solution for catheter position effects for strain estimation in intravascular elastography. Ultrasound in Medicine & Biology. 31: 1509-26. PMID 16286029 DOI: 10.1016/j.ultrasmedbio.2005.07.004  1
2005 Chen Q, Gerig AL, Techavipoo U, Zagzebski JA, Varghese T. Correlation of RF signals during angular compounding. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. 52: 961-70. PMID 16118977  1
2005 Techavipoo U, Varghese T. Improvements in elastographic contrast-to-noise ratio using spatial-angular compounding. Ultrasound in Medicine & Biology. 31: 529-36. PMID 15831331 DOI: 10.1016/j.ultrasmedbio.2005.01.006  1
2005 Bharat S, Techavipoo U, Kiss MZ, Liu W, Varghese T. Monitoring stiffness changes in lesions after radiofrequency ablation at different temperatures and durations of ablation. Ultrasound in Medicine & Biology. 31: 415-22. PMID 15749565 DOI: 10.1016/j.ultrasmedbio.2004.12.020  1
2004 Varghese T, Daniels MJ. Real-time calibration of temperature estimates during radiofrequency ablation. Ultrasonic Imaging. 26: 185-200. PMID 15754799  1
2004 Alam SK, Lizzi FL, Varghese T, Feleppa EJ, Ramachandran S. Adaptive spectral strain estimators for elastography. Ultrasonic Imaging. 26: 131-49. PMID 15754795  1
2004 Kiss MZ, Varghese T, Hall TJ. Viscoelastic characterization of in vitro canine tissue. Physics in Medicine and Biology. 49: 4207-18. PMID 15509061 DOI: 10.1088/0031-9155/49/18/002  1
2004 Gerig A, Chen Q, Zagzebski J, Varghese T. Correlation of ultrasonic scatterer size estimates for the statistical analysis and optimization of angular compounding. The Journal of the Acoustical Society of America. 116: 1832-41. PMID 15478451 DOI: 10.1121/1.1756615  1
2004 Liu W, Techavipoo U, Varghese T, Zagzebski JA, Chen Q, Lee FT. Elastographic versus x-ray CT imaging of radio frequency ablation coagulations: an in vitro study. Medical Physics. 31: 1322-32. PMID 15259635 DOI: 10.1118/1.1738963  1
2004 Gerig AL, Varghese T, Zagzebski JA. Improved parametric imaging of scatterer size estimates using angular compounding. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. 51: 708-15. PMID 15244284  1
2004 Techavipoo U, Chen Q, Varghese T, Zagzebski JA, Madsen EL. Noise reduction using spatial-angular compounding for elastography. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. 51: 510-20. PMID 15217229 DOI: 10.1109/TUFFC.2004.1302760  1
2004 Varghese T, Shi H. Elastographic imaging of thermal lesions in liver in-vivo using diaphragmatic stimuli. Ultrasonic Imaging. 26: 18-28. PMID 15134391  1
2004 Techavipoo U, Varghese T. Wavelet denoising of displacement estimates in elastography. Ultrasound in Medicine & Biology. 30: 477-91. PMID 15121250 DOI: 10.1016/j.ultrasmedbio.2003.11.010  1
2004 Varghese T, Techavipoo U, Zagzebski JA, Lee FT. Impact of gas bubbles generated during interstitial ablation on elastographic depiction of in vitro thermal lesions. Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine. 23: 535-44; quiz 545-6. PMID 15098873  1
2004 Kiss MZ, Varghese T. Viscoelastic characterization of in-vitro canine liver tissue Proceedings - Ieee Ultrasonics Symposium. 3: 2086-2089. DOI: 10.1109/ULTSYM.2004.1418247  1
2003 Shi H, Varghese T, Chen Q, Gimelli G. Correction for simultaneous catheter eccentricity and tilt in intravascular elastography. Ultrasonic Imaging. 25: 262-83. PMID 15074513  1
2003 Tu H, Varghese T, Madsen EL, Chen Q, Zagzebski JA. Ultrasound attenuation imaging using compound acquisition and processing. Ultrasonic Imaging. 25: 245-61. PMID 15074512  1
2003 Varghese T, Techavipoo U, Liu W, Zagzebski JA, Chen Q, Frank G, Lee FT. Elastographic measurement of the area and volume of thermal lesions resulting from radiofrequency ablation: pathologic correlation. Ajr. American Journal of Roentgenology. 181: 701-7. PMID 12933463 DOI: 10.2214/ajr.181.3.1810701  1
2003 Gerig A, Zagzebski J, Varghese T. Statistics of ultrasonic scatterer size estimation with a reference phantom. The Journal of the Acoustical Society of America. 113: 3430-7. PMID 12822813 DOI: 10.1121/1.1568945  1
2003 Varghese T, Zagzebski JA, Rahko P, Breburda CS. Ultrasonic imaging of myocardial strain using cardiac elastography. Ultrasonic Imaging. 25: 1-16. PMID 12747424  1
2002 Ophir J, Alam SK, Garra BS, Kallel F, Konofagou EE, Krouskop T, Merritt CR, Righetti R, Souchon R, Srinivasan S, Varghese T. Elastography: Imaging the elastic properties of soft tissues with ultrasound. Journal of Medical Ultrasonics (2001). 29: 155. PMID 27277961 DOI: 10.1007/BF02480847  1
2002 Varghese T, Zagzebski JA, Lee FT. Elastographic imaging of thermal lesions in the liver in vivo following radiofrequency ablation: preliminary results. Ultrasound in Medicine & Biology. 28: 1467-73. PMID 12498942 DOI: 10.1016/S0301-5629(02)00656-7  1
2001 Varghese T, Ophir J. Experimental corroboration of the nonstationary strain estimation errors in elastography Ultrasound in Medicine and Biology. 27: 1677-1682. PMID 11839412 DOI: 10.1016/S0301-5629(01)00472-0  1
2000 Konofagou EE, Varghese T, Ophir J. Theoretical bounds on the estimation of transverse displacement, transverse strain and poisson's ratio in elastography Ultrasonic Imaging. 22: 153-177. PMID 11297149  1
2000 Varghese T, Ophir J, Krouskop TA. Nonlinear stress-strain relationships in tissue and their effect on the contrast-to-noise ratio in elastograms Ultrasound in Medicine and Biology. 26: 839-851. PMID 10942831 DOI: 10.1016/S0301-5629(00)00199-X  1
2000 Konofagou EE, Varghese T, Ophir J. Spectral estimators in elastography Ultrasonics. 38: 412-416. PMID 10829698 DOI: 10.1016/S0041-624X(99)00116-X  1
2000 Kaisar Alam S, Ophir J, Varghese T. Elastographic axial resolution criteria: An experimental study Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. 47: 304-309. DOI: 10.1109/58.818775  1
1999 Varghese T, Ophir J. A method for experimental characterization of the noise performance of elastographic systems Ultrasonic Imaging. 21: 17-30. PMID 10230007  1
1998 Varghese T, Bilgen M, Ophir J. Multiresolution imaging in elastography. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. 45: 65-75. PMID 18244159 DOI: 10.1109/58.646912  1
1998 Varghese T, Ophir J. An analysis of elastographic contrast-to-noise ratio Ultrasound in Medicine and Biology. 24: 915-924. PMID 9740393 DOI: 10.1016/S0301-5629(98)00047-7  1
1998 Varghese T, Ophir J. Characterization of elastographic noise using the envelope of echo signals Ultrasound in Medicine and Biology. 24: 543-555. PMID 9651964 DOI: 10.1016/S0301-5629(98)00008-8  1
1997 Varghese T, Ophir J. The nonstationary strain filter in elastography: Part I. Frequency dependent attenuation Ultrasound in Medicine and Biology. 23: 1343-1356. PMID 9428134 DOI: 10.1016/S0301-5629(97)00197-X  1
1997 Varghese T, Ophir J. Enhancement of echo-signal correlation in elastography using temporal stretching Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. 44: 173-180. DOI: 10.1109/58.585213  1
1997 Varghese T, Ophir J. A theoretical framework for performance characterization of elastography: The strain filter Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. 44: 164-172. DOI: 10.1109/58.585212  1
1997 Varghese T, Ophir J, Kallel F. Theoretical framework for elastographic imaging: The strain filter Ultrasound in Medicine and Biology. 23.  1
1997 Konofagou EE, Varghese T, Ophir J. Variable compressions with RF and baseband processing for dynamic range expansion of elastograms Journal of Medical Ultrasonics. 24: 3-10.  1
1996 Varghese T, Ophir J. Performance optimization in elastography: Multicompression with temporal stretching Ultrasonic Imaging. 18: 193-214. PMID 9123673 DOI: 10.1006/uimg.1996.0011  1
1996 Varghese T, Ophir J. Estimating tissue strain from signal decorrelation using the correlation coefficient Ultrasound in Medicine and Biology. 22: 1249-1254. PMID 9123649 DOI: 10.1016/S0301-5629(96)00166-4  1
1996 Varghese T, Ophir J, Céspedes I. Noise reduction in elastograms using temporal stretching with multicompression averaging Ultrasound in Medicine and Biology. 22: 1043-1052. PMID 9004428 DOI: 10.1016/S0301-5629(96)00128-7  1
1995 Varghese T, Donohue KD. Estimating Mean Scatterer Spacing with the Frequency-Smoothed Spectral Autocorrelation Function Ieee Transactions On Ultrasonics, Ferroelectrics and Frequency Control. 42: 451-463. DOI: 10.1109/58.384455  1
1995 Varghese T, Donohue KD, Chatterjee JP. Specular echo imaging with spectral correlation Proceedings of the Ieee Ultrasonics Symposium. 2: 1315-1318.  1
1994 Varghese T, Donohue KD. Mean-scatterer spacing estimates with spectral correlation Journal of the Acoustical Society of America. 96: 3504-3515. PMID 7814765 DOI: 10.1121/1.410611  1
1993 Varghese T, Donohue KD. Characterization of tissue microstructure scatterer distribution with spectral correlation Ultrasonic Imaging. 15: 238-254. PMID 8879094 DOI: 10.1177/016173469301500304  1
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