Jonathan Ophir - Publications

Affiliations: 
University of Houston, Houston, TX, United States 
Area:
Biomedical Engineering, Electronics and Electrical Engineering

130 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
2016 Pitre JJ, Koziol LB, Kruger GH, Vollmer A, Ophir J, Ammann JJ, Weitzel WF, Bull JL. Design and Testing of a Single-Element Ultrasound Viscoelastography System for Point-of-Care Edema Quantification. Ultrasound in Medicine & Biology. PMID 27222246 DOI: 10.1016/J.Ultrasmedbio.2016.04.013  0.47
2013 Thittai AK, Yamal JM, Ophir J. Small breast lesion classification performance using the normalized axial-shear strain area feature. Ultrasound in Medicine & Biology. 39: 543-8. PMID 23312961 DOI: 10.1016/J.Ultrasmedbio.2012.10.011  0.331
2012 Thittai AK, Galaz B, Ophir J. On the advantages of imaging the axial-shear strain component of the total shear strain in breast tumors. Ultrasound in Medicine & Biology. 38: 2031-7. PMID 22975036 DOI: 10.1016/J.Ultrasmedbio.2012.06.011  0.458
2012 Berg EP, Kallel F, Hussain F, Miller RK, Ophir J, Kehtarnavaz N. The use of elastography to measure quality characteristics of pork semimembranosus muscle. Meat Science. 53: 31-5. PMID 22062930 DOI: 10.1016/S0309-1740(99)00033-9  0.433
2012 Ophir J, Miller RK, Ponnekanti H, Cespedes I, Whittaker AD. Elastography of beef muscle. Meat Science. 36: 239-50. PMID 22061462 DOI: 10.1016/0309-1740(94)90043-4  0.304
2012 Alam SK, Ophir J, Cespedes I, Varghese T. A deconvolution filter for improvement of time-delay estimation in elastography. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. 45: 1565-72. PMID 18250004 DOI: 10.1109/58.738296  0.604
2012 Alam SK, Ophir J, Konofagou EE. An adaptive strain estimator for elastography. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. 45: 461-72. PMID 18244197 DOI: 10.1109/58.660156  0.634
2012 Cespedes I, Ophir J, Alam SK. The combined effect of signal decorrelation and random noise on the variance of time delay estimation. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. 44: 220-5. PMID 18244121 DOI: 10.1109/58.585223  0.387
2011 Thittai AK, Galaz B, Ophir J. Visualization of HIFU-induced lesion boundaries by axial-shear strain elastography: a feasibility study. Ultrasound in Medicine & Biology. 37: 426-33. PMID 21276656 DOI: 10.1016/J.Ultrasmedbio.2010.11.009  0.346
2011 Thittai AK, Yamal JM, Mobbs LM, Kraemer-Chant CM, Chekuri S, Garra BS, Ophir J. Axial-shear strain elastography for breast lesion classification: further results from in vivo data. Ultrasound in Medicine & Biology. 37: 189-97. PMID 21208733 DOI: 10.1016/J.Ultrasmedbio.2010.11.001  0.349
2011 Ophir J, Srinivasan S, Righetti R, Thittai A. Elastography: A decade of progress (2000-2010) Current Medical Imaging Reviews. 7: 292-312. DOI: 10.2174/157340511798038693  0.699
2010 Thittai AK, Galaz B, Ophir J. Importance of axial compression verification to correct interpretation of axial-shear strain elastograms in breast lesions. Ultrasonic Imaging. 32: 190-8. PMID 20718247 DOI: 10.1177/016173461003200306  0.444
2010 Thittai AK, Galaz B, Ophir J. Axial-shear strain distributions in an elliptical inclusion model: experimental validation and in vivo examples with implications to breast tumor classification. Ultrasound in Medicine & Biology. 36: 814-20. PMID 20420971 DOI: 10.1016/J.Ultrasmedbio.2010.02.004  0.436
2008 Thitaikumar A, Mobbs LM, Kraemer-Chant CM, Garra BS, Ophir J. Breast tumor classification using axial shear strain elastography: a feasibility study. Physics in Medicine and Biology. 53: 4809-23. PMID 18701768 DOI: 10.1088/0031-9155/53/17/022  0.392
2008 Patil AV, Krouskop TA, Ophir J, Srinivasan S. On the Differences Between Two-Dimensional and Three-Dimensional Simulations for Assessing Elastographic Image Quality: A Simulation Study Ultrasound in Medicine and Biology. 34: 1129-1138. PMID 18343016 DOI: 10.1016/J.Ultrasmedbio.2007.12.007  0.391
2007 Righetti R, Garra BS, Mobbs LM, Kraemer-Chant CM, Ophir J, Krouskop TA. The feasibility of using poroelastographic techniques for distinguishing between normal and lymphedematous tissues in vivo. Physics in Medicine and Biology. 52: 6525-41. PMID 17951860 DOI: 10.1088/0031-9155/52/21/013  0.657
2007 Thitaikumar A, Ophir J. Effect of lesion boundary conditions on axial strain elastograms: a parametric study. Ultrasound in Medicine & Biology. 33: 1463-7. PMID 17561335 DOI: 10.1016/J.Ultrasmedbio.2007.03.011  0.472
2007 Righetti R, Righetti M, Ophir J, Krouskop TA. The feasibility of estimating and imaging the mechanical behavior of poroelastic materials using axial strain elastography. Physics in Medicine and Biology. 52: 3241-59. PMID 17505100 DOI: 10.1088/0031-9155/52/11/020  0.73
2007 Thitaikumar A, Krouskop TA, Garra BS, Ophir J. Visualization of bonding at an inclusion boundary using axial-shear strain elastography: a feasibility study. Physics in Medicine and Biology. 52: 2615-33. PMID 17440256 DOI: 10.1088/0031-9155/52/9/019  0.484
2007 Righetti R, Ophir J, Kumar AT, Krouskop TA. Assessing image quality in effective Poisson's ratio elastography and poroelastography: II. Physics in Medicine and Biology. 52: 1321-33. PMID 17301457 DOI: 10.1088/0031-9155/52/5/008  0.692
2007 Righetti R, Srinivasan S, Kumar AT, Ophir J, Krouskop TA. Assessing image quality in effective Poisson's ratio elastography and poroelastography: I. Physics in Medicine and Biology. 52: 1303-20. PMID 17301456 DOI: 10.1088/0031-9155/52/5/007  0.734
2007 Thitaikumar A, Krouskop TA, Ophir J. Signal-to-noise ratio, contrast-to-noise ratio and their trade-offs with resolution in axial-shear strain elastography. Physics in Medicine and Biology. 52: 13-28. PMID 17183125 DOI: 10.1088/0031-9155/52/1/002  0.539
2006 Thitaikumar A, Righetti R, Krouskop TA, Ophir J. Resolution of axial shear strain elastography. Physics in Medicine and Biology. 51: 5245-57. PMID 17019036 DOI: 10.1088/0031-9155/51/20/011  0.737
2006 Chandrasekhar R, Ophir J, Krouskop T, Ophir K. Elastographic image quality vs. tissue motion in vivo. Ultrasound in Medicine & Biology. 32: 847-55. PMID 16785007 DOI: 10.1016/J.Ultrasmedbio.2006.02.1407  0.468
2006 Hoyt K, Forsberg F, Ophir J. Analysis of a hybrid spectral strain estimation technique in elastography. Physics in Medicine and Biology. 51: 197-209. PMID 16394333 DOI: 10.1088/0031-9155/51/2/001  0.486
2006 Doyley MM, Srinivasan S, Dimidenko E, Soni N, Ophir J. Enhancing the performance of model-based elastography by incorporating additional a priori information in the modulus image reconstruction process. Physics in Medicine and Biology. 51: 95-112. PMID 16357433 DOI: 10.1088/0031-9155/51/1/007  0.437
2006 Hoyt K, Forsberg F, Ophir J. Comparison of shift estimation strategies in spectral elastography. Ultrasonics. 44: 99-108. PMID 16243373 DOI: 10.1016/J.Ultras.2005.08.006  0.41
2005 Righetti R, Ophir J, Garra BS, Chandrasekhar RM, Krouskop TA. A new method for generating poroelastograms in noisy environments. Ultrasonic Imaging. 27: 201-20. PMID 16761783 DOI: 10.1177/016173460502700401  0.702
2005 Kumar AT, Ophir J, Krouskop TA. Noise performance and signal-to-noise ratio of shear strain elastograms. Ultrasonic Imaging. 27: 145-65. PMID 16550705 DOI: 10.1177/016173460502700302  0.48
2005 Hoyt K, Forsberg F, Ophir J. Investigation of parametric spectral estimation techniques for elasticity imaging. Ultrasound in Medicine & Biology. 31: 1109-21. PMID 16085101 DOI: 10.1016/J.Ultrasmedbio.2005.04.013  0.521
2005 Righetti R, Ophir J, Krouskop TA. A method for generating permeability elastograms and Poisson's ratio time-constant elastograms. Ultrasound in Medicine & Biology. 31: 803-16. PMID 15936496 DOI: 10.1016/J.Ultrasmedbio.2005.02.004  0.667
2005 Doyley MM, Srinivasan S, Pendergrass SA, Wu Z, Ophir J. Comparative evaluation of strain-based and model-based modulus elastography. Ultrasound in Medicine & Biology. 31: 787-802. PMID 15936495 DOI: 10.1016/J.Ultrasmedbio.2005.02.005  0.446
2005 Hoyt K, Forsberg F, Merritt CR, Liu JB, Ophir J. In vivo elastographic investigation of ethanol-induced hepatic lesions. Ultrasound in Medicine & Biology. 31: 607-12. PMID 15866410 DOI: 10.1016/J.Ultrasmedbio.2005.01.017  0.304
2005 Srinivasan S, Ophir J, Alam SK. Theoretical derivation of SNR, CNR and spatial resolution for a local adaptive strain estimator for elastography. Ultrasound in Medicine & Biology. 30: 1185-97. PMID 15550322 DOI: 10.1016/J.Ultrasmedbio.2004.07.013  0.537
2004 Srinivasan S, Righetti R, Ophir J. An experimental characterization of elastographic spatial resolution: analysis of the trade-offs between spatial resolution and contrast-to-noise ratio. Ultrasound in Medicine & Biology. 30: 1269-80. PMID 15582226 DOI: 10.1016/J.Ultrasmedbio.2004.07.003  0.701
2004 Langevin HM, Konofagou EE, Badger GJ, Churchill DL, Fox JR, Ophir J, Garra BS. Tissue displacements during acupuncture using ultrasound elastography techniques. Ultrasound in Medicine & Biology. 30: 1173-83. PMID 15550321 DOI: 10.1016/J.Ultrasmedbio.2004.07.010  0.552
2004 Srinivasan S, Krouskop T, Ophir J. A quantitative comparison of modulus images obtained using nanoindentation with strain elastograms. Ultrasound in Medicine & Biology. 30: 899-918. PMID 15313323 DOI: 10.1016/J.Ultrasmedbio.2004.05.005  0.54
2004 Srinivasan S, Krouskop T, Ophir J. Comparing elastographic strain images with modulus images obtained using nanoindentation: preliminary results using phantoms and tissue samples. Ultrasound in Medicine & Biology. 30: 329-43. PMID 15063515 DOI: 10.1016/J.Ultrasmedbio.2003.10.021  0.518
2004 Righetti R, Ophir J, Srinivasan S, Krouskop TA. The feasibility of using elastography for imaging the Poisson's ratio in porous media. Ultrasound in Medicine & Biology. 30: 215-28. PMID 14998674 DOI: 10.1016/J.Ultrasmedbio.2003.10.022  0.714
2004 Ophir J. Recent advances in elastography Journal of the Acoustical Society of America. 115: 2410-2410. DOI: 10.1121/1.4781085  0.517
2003 Krouskop TA, Younes PS, Srinivasan S, Wheeler T, Ophir J. Differences in the compressive stress-strain response of infiltrating ductal carcinomas with and without lobular features--implications for mammography and elastography. Ultrasonic Imaging. 25: 162-70. PMID 14870801 DOI: 10.1177/016173460302500304  0.427
2003 Souchon R, Rouvière O, Gelet A, Detti V, Srinivasan S, Ophir J, Chapelon JY. Visualisation of HIFU lesions using elastography of the human prostate in vivo: preliminary results. Ultrasound in Medicine & Biology. 29: 1007-15. PMID 12878247 DOI: 10.1016/S0301-5629(03)00065-6  0.39
2003 Srinivasan S, Righetti R, Ophir J. Trade-offs between the axial resolution and the signal-to-noise ratio in elastography. Ultrasound in Medicine & Biology. 29: 847-66. PMID 12837500 DOI: 10.1016/S0301-5629(03)00037-1  0.705
2003 Righetti R, Srinivasan S, Ophir J. Lateral resolution in elastography. Ultrasound in Medicine & Biology. 29: 695-704. PMID 12754069 DOI: 10.1016/S0301-5629(03)00028-0  0.694
2003 Madsen EL, Frank GR, Krouskop TA, Varghese T, Kallel F, Ophir J. Tissue-mimicking oil-in-gelatin dispersions for use in heterogeneous elastography phantoms. Ultrasonic Imaging. 25: 17-38. PMID 12747425 DOI: 10.1177/016173460302500102  0.492
2003 Srinivasan S, Ophir J, Alam SK. Elastographic imaging using staggered strain estimates. Ultrasonic Imaging. 24: 229-45. PMID 12665239 DOI: 10.1177/016173460202400403  0.509
2003 Srinivasan S, Ophir J. A zero-crossing strain estimator for elastography. Ultrasound in Medicine & Biology. 29: 227-38. PMID 12659911 DOI: 10.1016/S0301-5629(02)00697-X  0.476
2003 Fortin M, Buschmann MD, Bertrand MJ, Foster FS, Ophir J. Dynamic measurement of internal solid displacement in articular cartilage using ultrasound backscatter. Journal of Biomechanics. 36: 443-7. PMID 12594992 DOI: 10.1016/S0021-9290(02)00413-X  0.39
2003 Srinivasan S, Kallel F, Ophir J. The effects of digitization on the elastographic signal-to-noise ratio. Ultrasound in Medicine & Biology. 28: 1521-34. PMID 12498948 DOI: 10.1016/S0301-5629(02)00652-X  0.504
2003 Srinivasan S, Kallel F, Souchon R, Ophir J. Analysis of an adaptive strain estimation technique in elastography. Ultrasonic Imaging. 24: 109-18. PMID 12199417 DOI: 10.1177/016173460202400204  0.513
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  0.768
2002 Souchon R, Soualmi L, Bertrand M, Chapelon JY, Kallel F, Ophir J. Ultrasonic elastography using sector scan imaging and a radial compression. Ultrasonics. 40: 867-71. PMID 12160060 DOI: 10.1016/S0041-624X(02)00228-7  0.529
2002 Konofagou EE, D'hooge J, Ophir J. Myocardial elastography--a feasibility study in vivo. Ultrasound in Medicine & Biology. 28: 475-82. PMID 12049961 DOI: 10.1016/S0301-5629(02)00488-X  0.567
2002 Srinivasan S, Kallel F, Ophir J. Estimating the elastographic signal-to-noise ratio using correlation coefficients. Ultrasound in Medicine & Biology. 28: 359-68. PMID 11978416 DOI: 10.1016/S0301-5629(01)00510-5  0.437
2002 Righetti R, Ophir J, Ktonas P. Axial resolution in elastography. Ultrasound in Medicine & Biology. 28: 101-13. PMID 11879957 DOI: 10.1016/S0301-5629(01)00495-1  0.696
2002 Alaniz A, Kallel F, Hungerford E, Ophir J. Variational method for estimating the effects of continuously varying lenses in HIFU, sonography, and sonography-based cross-correlation methods. The Journal of the Acoustical Society of America. 111: 468-74. PMID 11831822 DOI: 10.1121/1.1424867  0.333
2001 Varghese T, Ophir J, Konofagou E, Kallel F, Righetti R. Tradeoffs in elastographic imaging. Ultrasonic Imaging. 23: 216-48. PMID 12051276 DOI: 10.1177/016173460102300402  0.794
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  0.648
2001 Konofagou EE, Harrigan TP, Ophir J, Krouskop TA. Poroelastography: Imaging the poroelastic properties of tissues Ultrasound in Medicine and Biology. 27: 1387-1397. PMID 11731052 DOI: 10.1016/S0301-5629(01)00433-1  0.615
2001 Kallel F, Prihoda CD, Ophir J. Contrast-transfer efficiency for continuously varying tissue moduli: simulation and phantom validation. Ultrasound in Medicine & Biology. 27: 1115-25. PMID 11527598 DOI: 10.1016/S0301-5629(01)00411-2  0.402
2001 Varghese T, Bilgen M, Ophir J. Phase aberration effects in elastography. Ultrasound in Medicine & Biology. 27: 819-27. PMID 11516542 DOI: 10.1016/S0301-5629(01)00379-9  0.571
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 DOI: 10.1177/016173460002200302  0.694
2000 Varghese T, Konofagou EE, Ophir J, Alam SK, Bilgen M. Direct strain estimation in elastography using spectral cross-correlation. Ultrasound in Medicine & Biology. 26: 1525-37. PMID 11179627 DOI: 10.1016/S0301-5629(00)00316-1  0.693
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  0.624
2000 Konofagou EE, Ophir J. Precision estimation and imaging of normal and shear components of the 3D strain tensor in elastography Physics in Medicine and Biology. 45: 1553-1563. PMID 10870710 DOI: 10.1088/0031-9155/45/6/311  0.598
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  0.697
2000 Konofagou EE, Harrigan T, Ophir J. Shear strain estimation and lesion mobility assessment in elastography Ultrasonics. 38: 400-404. PMID 10829696 DOI: 10.1016/S0041-624X(99)00125-0  0.668
2000 Ophir J, Garra B, Kallel F, Konofagou E, Krouskop T, Righetti R, Varghese T. Elastographic imaging. Ultrasound in Medicine & Biology. 26: S23-9. PMID 10794867 DOI: 10.1016/S0301-5629(00)00156-3  0.724
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  0.539
1999 Kallel F, Price RE, Konofagou E, Ophir J. Elastographic imaging of the normal canine prostate in vitro Ultrasonic Imaging. 21: 201-215. PMID 10604801 DOI: 10.1177/016173469902100304  0.514
1999 Konofagou EE, Varghese T, Ophir J, Alam SK. Power spectral strain estimators in elastography Ultrasound in Medicine and Biology. 25: 1115-1129. PMID 10574343 DOI: 10.1016/S0301-5629(99)00061-7  0.727
1999 Righetti R, Kallel F, Stafford RJ, Price RE, Krouskop TA, Hazle JD, Ophir J. Elastographic characterization of HIFU-induced lesions in canine livers. Ultrasound in Medicine & Biology. 25: 1099-113. PMID 10574342 DOI: 10.1016/S0301-5629(99)00044-7  0.679
1999 Ophir J, Alam SK, Garra B, Kallel F, Konofagou E, Krouskop T, Varghese T. Elastography: ultrasonic estimation and imaging of the elastic properties of tissues. Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine. 213: 203-33. PMID 10420776 DOI: 10.1243/0954411991534933  0.616
1999 Kallel F, Stafford RJ, Price RE, Righetti R, Ophir J, Hazle JD. The feasibility of elastographic visualization of HIFU-induced thermal lesions in soft tissues. Image-guided high-intensity focused ultrasound. Ultrasound in Medicine & Biology. 25: 641-7. PMID 10386741 DOI: 10.1016/S0301-5629(98)00184-7  0.655
1999 Varghese T, Ophir J. A method for experimental characterization of the noise performance of elastographic systems Ultrasonic Imaging. 21: 17-30. PMID 10230007 DOI: 10.1177/016173469902100102  0.639
1999 Kallel F, Ophir J. Limits on the contrast of strain concentrations in elastography. Ultrasound in Medicine & Biology. 24: 1215-9. PMID 9833591 DOI: 10.1016/S0301-5629(98)00106-9  0.428
1999 Konofagou E, Ophir J. A new elastographic method for estimation and imaging of lateral displacements, lateral strains, corrected axial strains and Poisson's ratios in tissues. Ultrasound in Medicine & Biology. 24: 1183-99. PMID 9833588 DOI: 10.1016/S0301-5629(98)00109-4  0.659
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  0.667
1998 Stafford RJ, Kallel F, Price RE, Cromeens DM, Krouskop TA, Hazle JD, Ophir J. Elastographic imaging of thermal lesions in soft tissue: a preliminary study in vitro. Ultrasound in Medicine & Biology. 24: 1449-58. PMID 10385966 DOI: 10.1016/S0301-5629(98)00099-4  0.319
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  0.523
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  0.631
1998 Kallel F, Ophir J, Magee K, Krouskop T. Elastographic imaging of low-contrast elastic modulus distributions in tissue. Ultrasound in Medicine & Biology. 24: 409-25. PMID 9587996 DOI: 10.1016/S0301-5629(97)00287-1  0.489
1998 Kallel F, Ophir J. A least-squares strain estimator for elastography. Ultrasonic Imaging. 19: 195-208. PMID 9447668 DOI: 10.1177/016173469701900303  0.514
1998 Alam SK, Ophir J. On the use of envelope and RF signal decorrelation as tissue strain estimators. Ultrasound in Medicine & Biology. 23: 1427-33. PMID 9428142 DOI: 10.1016/S0301-5629(97)00186-5  0.526
1998 Konofagou EE, Kallel F, Ophir J. Three-dimensional motion estimation in elastography Proceedings of the Ieee Ultrasonics Symposium. 2: 1745-1748.  0.522
1997 Kallel F, Varghese T, Ophir J, Bilgen M. The nonstationary strain filter in elastography: Part II. Lateral and elevational decorrelation. Ultrasound in Medicine & Biology. 23: 1357-69. PMID 9428135 DOI: 10.1016/S0301-5629(97)00196-8  0.605
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  0.636
1997 Konofagou EE, Ophir J, Kallel F, Varghese T. Elastographic dynamic range expansion using variable applied strains Ultrasonic Imaging. 19: 145-166. PMID 9381631 DOI: 10.1177/016173469701900205  0.689
1997 Konofagou E, Dutta P, Ophir J, Céspedes I. Reduction of stress nonuniformities by apodization of compressor displacement in elastography. Ultrasound in Medicine & Biology. 22: 1229-36. PMID 9123647 DOI: 10.1016/S0301-5629(96)00147-0  0.597
1997 Alam SK, Ophir J. Reduction of signal decorrelation from mechanical compression of tissues by temporal stretching: applications to elastography. Ultrasound in Medicine & Biology. 23: 95-105. PMID 9080622 DOI: 10.1016/S0301-5629(96)00164-0  0.489
1997 Huang Y, Lacey RE, Moore LL, Miller RK, Whittaker AD, Ophir J. Wavelet Textural Features From Ultrasonic Elastograms For Meat Quality Transactions of the Asabe. 40: 1741-1748. DOI: 10.13031/2013.21406  0.338
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  0.621
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  0.629
1997 Varghese T, Ophir J, Kallel F. PIO 7412 A theoretical framework for elastographic imaging: The strain filter Ultrasound in Medicine & Biology. 23: S136. DOI: 10.1016/S0301-5629(97)80807-1  0.573
1997 Konofagou E, Ophir J, Varghese T, Kallel F. PIO 7411 Dynamic range expansion in elastography: Theory and applications Ultrasound in Medicine & Biology. 23: S135. DOI: 10.1016/S0301-5629(97)80801-0  0.542
1997 Ophir J, Kallel F, Varghese T, Bertrand M, Céspedes I, Ponnekanti H. Elastography: A systems approach International Journal of Imaging Systems and Technology. 8: 89-103. DOI: 10.1002/(Sici)1098-1098(1997)8:1<89::Aid-Ima11>3.0.Co;2-G  0.613
1996 Varghese T, Ophir J. Performance optimization in elastography: Multicompression with temporal stretching Ultrasonic Imaging. 18: 193-214. PMID 9123673 DOI: 10.1177/016173469601800303  0.606
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  0.625
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  0.6
1996 Kallel F, Bertrand M, Ophir J. Fundamental limitations on the contrast-transfer efficiency in elastography: an analytic study. Ultrasound in Medicine & Biology. 22: 463-70. PMID 8795173 DOI: 10.1016/0301-5629(95)02079-9  0.473
1996 Ophir J, Cespedes I, Garra B, Ponnekanti H, Huang Y, Maklad N. Elastography: Ultrasonic imaging of tissue strain and elastic modulus in vivo European Journal of Ultrasound. 3: 49-70. DOI: 10.1016/0929-8266(95)00134-4  0.468
1995 Céspedes I, Huang Y, Ophir J, Spratt S. Methods for estimation of subsample time delays of digitized echo signals. Ultrasonic Imaging. 17: 142-71. PMID 7571208 DOI: 10.1177/016173469501700204  0.378
1995 Ponnekanti H, Ophir J, Huang Y, Céspedes I. Fundamental mechanical limitations on the visualization of elasticity contrast in elastography. Ultrasound in Medicine & Biology. 21: 533-43. PMID 7571146 DOI: 10.1016/0301-5629(94)00136-2  0.443
1995 Cespedes I, Insana M, Ophir J. Theoretical bounds on strain estimation in elastography Ieee Transactions On Ultrasonics, Ferroelectrics and Frequency Control. 42: 969-972. DOI: 10.1109/58.464850  0.481
1994 Ponnekanti H, Ophir J, Cespedes I. Ultrasonic imaging of the stress distribution in elastic media due to an external compressor. Ultrasound in Medicine & Biology. 20: 27-33. PMID 8197624 DOI: 10.1016/0301-5629(94)90014-0  0.436
1994 Belaïd N, Cespedes I, Thijssen JM, Ophir J. Lesion detection in simulated elastographic and echographic images: a psychophysical study. Ultrasound in Medicine & Biology. 20: 877-91. PMID 7886848 DOI: 10.1016/0301-5629(94)90048-5  0.353
1993 Céspedes I, Ophir J. Reduction of image noise in elastography. Ultrasonic Imaging. 15: 89-102. PMID 8346613 DOI: 10.1177/016173469301500202  0.495
1993 Céspedes I, Ophir J, Ponnekanti H, Maklad N. Elastography: elasticity imaging using ultrasound with application to muscle and breast in vivo. Ultrasonic Imaging. 15: 73-88. PMID 8346612 DOI: 10.1177/016173469301500201  0.343
1993 Ophir J, Cespedes I, Ponnekanti H, Maklad N. Elastography: Technical considerations and preliminary clinical results Journal of the Acoustical Society of America. 93: 2330-2330. DOI: 10.1121/1.406354  0.497
1992 Ophir J, Moriya T, Yazdi Y. A single transducer transaxial compression technique for the estimation of sound speed in biological tissues. Ultrasonic Imaging. 13: 269-79. PMID 1957424 DOI: 10.1177/016173469101300304  0.417
1992 Céspedes I, Ophir J, Huang Y. On the feasibility of pulse-echo speed of sound estimation in small regions: simulation studies. Ultrasound in Medicine & Biology. 18: 283-91. PMID 1595134 DOI: 10.1016/0301-5629(92)90097-T  0.326
1992 Céspedes I, Ophir J. Correction of diffraction errors in attenuation estimation with Dynamic Beam Translation. Ultrasound in Medicine & Biology. 18: 213-8. PMID 1580017 DOI: 10.1016/0301-5629(92)90132-T  0.31
1991 Céspedes I, Ophir J. Diffraction correction methods for pulse-echo acoustic attenuation estimation. Ultrasound in Medicine & Biology. 16: 707-17. PMID 2281559 DOI: 10.1016/0301-5629(90)90104-K  0.342
1991 Robinson DE, Ophir J, Wilson LS, Chen CF. Pulse-echo ultrasound speed measurements: progress and prospects. Ultrasound in Medicine & Biology. 17: 633-46. PMID 1962366 DOI: 10.1016/0301-5629(91)90034-T  0.371
1991 Ophir J, Céspedes I, Ponnekanti H, Yazdi Y, Li X. Elastography: a quantitative method for imaging the elasticity of biological tissues. Ultrasonic Imaging. 13: 111-34. PMID 1858217 DOI: 10.1177/016173469101300201  0.52
1990 Ophir J. A transaxial compression technique (TACT) for localized pulse-echo estimation of sound speed in biological tissues Ultrasonic Imaging. 12: 35-46. DOI: 10.1016/0161-7346(90)90219-N  0.405
1989 Ophir J, Yazdi Y, Lin TS, Shattuck DP. Optimization of speed-of-sound estimation from noisy ultrasonic signals Ieee Transactions On Ultrasonics Ferroelectrics and Frequency Control. 36: 16-24. PMID 18284945 DOI: 10.1109/58.16964  0.397
1989 Ophir J, Mehta D. Elimination of diffraction error in acoustic attenuation estimation via axial beam translation. Ultrasonic Imaging. 10: 139-52. PMID 3057713 DOI: 10.1177/016173468801000205  0.348
1989 Ophir J, Johnson W, Yazdi Y, Shattuck D, Mehta D. Correlation artifacts in speed of sound estimation in scattering media. Ultrasound in Medicine & Biology. 15: 341-53. PMID 2763385 DOI: 10.1016/0301-5629(89)90046-X  0.389
1989 Shattuck DP, Ophir J, Johnson GW, Yazdi Y, Mehta D. Correction of refraction and other angle errors in beam tracking speed of sound estimations using multiple tracking transducers. Ultrasound in Medicine & Biology. 15: 673-81. PMID 2683293 DOI: 10.1016/0301-5629(89)90175-0  0.317
1989 Ophir J. Pulse echo method and apparatus for sound velocity estimation in vivo Journal of the Acoustical Society of America. 86: 1212-1212. DOI: 10.1121/1.398031  0.302
1989 Ophir J. Method for enhancing the accuracy of in vivo sound velocity estimation Journal of the Acoustical Society of America. 85: 2699-2699. DOI: 10.1121/1.397275  0.361
1986 Ophir J, Ghouse MA, Ferrari LA. Attenuation estimation with the zero-crossing technique: phantom studies. Ultrasonic Imaging. 7: 122-32. PMID 3909600 DOI: 10.1177/016173468500700202  0.359
1985 Narayana PA, Ophir J. The measurement of attenuation in nonlinearly attenuating media by the zero crossing method. Ultrasound in Medicine & Biology. 10: 715-8. PMID 6536127 DOI: 10.1016/0301-5629(84)90231-X  0.314
1985 Ophir J. Parametric vs nonparametric measurements in tissues with nonlinear frequency dependent attenuation. Ultrasound in Medicine & Biology. 10: 709-13. PMID 6399167 DOI: 10.1016/0301-5629(84)90230-8  0.36
1985 Ophir J, McWhirt RE, Maklad NF, Jaeger PM. A narrowband pulse-echo technique for in vivo ultrasonic attenuation estimation. Ieee Transactions On Bio-Medical Engineering. 32: 205-12. PMID 3888819 DOI: 10.1109/Tbme.1985.325530  0.334
1984 Narayana PA, Ophir J. On the validity of the linear approximation in the parametric measurement of attenuation in tissues. Ultrasound in Medicine & Biology. 9: 357-61. PMID 6649153 DOI: 10.1016/0301-5629(83)90088-1  0.341
1984 Ophir J, Shawker TH, Maklad NF, Miller JG, Flax SW, Narayana PA, Jones JP. Attenuation estimation in reflection: progress and prospects. Ultrasonic Imaging. 6: 349-95. PMID 6399169 DOI: 10.1177/016173468400600401  0.326
1983 Ophir J, Brinch JM. Moiré undersampling artifacts in digital ultrasound images. Ultrasonic Imaging. 4: 311-20. PMID 6891129 DOI: 10.1177/016173468200400402  0.329
1982 Ophir J, Jaeger P. A ternary solution for independent acoustic impedance and speed of sound matching to biological tissues. Ultrasonic Imaging. 4: 163-70. PMID 7201696 DOI: 10.1177/016173468200400205  0.326
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