Abbas Samani

Summary

Affiliation: University of Western Ontario
Country: Canada

Publications

  1. pmc Cardiac MR elastography: comparison with left ventricular pressure measurement
    Thomas Elgeti
    Department of Radiology, Charite Universitatsmedizin Berlin, Campus Mitte, Chariteplatz 1, 10117 Berlin, Germany
    J Cardiovasc Magn Reson 11:44. 2009
  2. ncbi request reprint A method to measure the hyperelastic parameters of ex vivo breast tissue samples
    Abbas Samani
    Department of Medical Biophysics Electrical and Computer Engineering, University of Western Ontario, London, ON N6A 5C1, Canada
    Phys Med Biol 49:4395-405. 2004
  3. ncbi request reprint An inverse problem solution for measuring the elastic modulus of intact ex vivo breast tissue tumours
    Abbas Samani
    Department of Medical Biophysics Electrical and Computer Engineering, University of Western Ontario, London, Ontario, N6A 5C1, Canada
    Phys Med Biol 52:1247-60. 2007
  4. ncbi request reprint Elastic moduli of normal and pathological human breast tissues: an inversion-technique-based investigation of 169 samples
    Abbas Samani
    Department of Medical Biophysics Electrical and Computer Engineering, University of Western Ontario, Medical Sciences Building, London, Ontario, N6A 5C1, Canada
    Phys Med Biol 52:1565-76. 2007
  5. ncbi request reprint Measurement of the hyperelastic properties of tissue slices with tumour inclusion
    Joseph J O'Hagan
    Department of Electrical and Computer Engineering, University of Western Ontario, London, ON, Canada
    Phys Med Biol 53:7087-106. 2008
  6. ncbi request reprint Towards a biomechanics-based technique for assessing myocardial contractility: an inverse problem approach
    Cristian A Linte
    Imaging Research Laboratories, Robarts Research Institute, London, Canada
    Comput Methods Biomech Biomed Engin 11:243-55. 2008
  7. ncbi request reprint Measuring the elastic modulus of ex vivo small tissue samples
    Abbas Samani
    Department of Medical Biophysics, University of Toronto, 2075 Bayview Avenue, Toronto, Ontario, M4N 3M5, Canada
    Phys Med Biol 48:2183-98. 2003
  8. ncbi request reprint Nonrigid registration of three-dimensional ultrasound and magnetic resonance images of the carotid arteries
    Nuwan D Nanayakkara
    Imaging Research Laboratories, Robarts Research Institute, London, Ontario N6A 5K8, Canada
    Med Phys 36:373-85. 2009
  9. doi request reprint Estimation of the quasi-static Young's modulus of the eardrum using a pressurization technique
    Nastaran Ghadarghadar
    Department of Electrical and Computer Engineering, Western University, London, Ontario, Canada
    Comput Methods Programs Biomed 110:231-9. 2013
  10. doi request reprint Measurement of lung hyperelastic properties using inverse finite element approach
    Ali Sadeghi Naini
    Department of Electrical and Computer Engineering, The University of Western Ontario, London, ON, N6A 3K7, Canada
    IEEE Trans Biomed Eng 58:2852-9. 2011

Collaborators

Detail Information

Publications27

  1. pmc Cardiac MR elastography: comparison with left ventricular pressure measurement
    Thomas Elgeti
    Department of Radiology, Charite Universitatsmedizin Berlin, Campus Mitte, Chariteplatz 1, 10117 Berlin, Germany
    J Cardiovasc Magn Reson 11:44. 2009
    ..To compare magnetic resonance elastography (MRE) with ventricular pressure changes in an animal model...
  2. ncbi request reprint A method to measure the hyperelastic parameters of ex vivo breast tissue samples
    Abbas Samani
    Department of Medical Biophysics Electrical and Computer Engineering, University of Western Ontario, London, ON N6A 5C1, Canada
    Phys Med Biol 49:4395-405. 2004
    ..The features of the system are demonstrated with two samples of breast tissue and typical hyperelastic results are presented...
  3. ncbi request reprint An inverse problem solution for measuring the elastic modulus of intact ex vivo breast tissue tumours
    Abbas Samani
    Department of Medical Biophysics Electrical and Computer Engineering, University of Western Ontario, London, Ontario, N6A 5C1, Canada
    Phys Med Biol 52:1247-60. 2007
    ..These results indicate that the proposed method is robust and highly accurate. Furthermore, they indicate that a benign lesion and malignant tumours are roughly five times and ten times stiffer than normal breast tissues respectively...
  4. ncbi request reprint Elastic moduli of normal and pathological human breast tissues: an inversion-technique-based investigation of 169 samples
    Abbas Samani
    Department of Medical Biophysics Electrical and Computer Engineering, University of Western Ontario, Medical Sciences Building, London, Ontario, N6A 5C1, Canada
    Phys Med Biol 52:1565-76. 2007
    ..A statistical analysis showed that differences between the elastic modulus of the majority of those tissues were statistically significant. Implications for the specificity advantages of elastography are reviewed...
  5. ncbi request reprint Measurement of the hyperelastic properties of tissue slices with tumour inclusion
    Joseph J O'Hagan
    Department of Electrical and Computer Engineering, University of Western Ontario, London, ON, Canada
    Phys Med Biol 53:7087-106. 2008
    ..Moreover, we successfully applied these techniques to data we acquired from nine pathological breast tissue slice specimens where the goal was to determine the hyperelastic properties of the tumour within the breast tissue slices...
  6. ncbi request reprint Towards a biomechanics-based technique for assessing myocardial contractility: an inverse problem approach
    Cristian A Linte
    Imaging Research Laboratories, Robarts Research Institute, London, Canada
    Comput Methods Biomech Biomed Engin 11:243-55. 2008
    ..Our next objective will consist of validating this technique by showing the correlation between the presence of low contraction force patterns and poor myocardial functionality...
  7. ncbi request reprint Measuring the elastic modulus of ex vivo small tissue samples
    Abbas Samani
    Department of Medical Biophysics, University of Toronto, 2075 Bayview Avenue, Toronto, Ontario, M4N 3M5, Canada
    Phys Med Biol 48:2183-98. 2003
    ..The tissue Young's modulus is then reconstructed from the measured displacements using an inversion technique. Finally, preliminary elasticity measurement results of various breast tissues are presented and discussed...
  8. ncbi request reprint Nonrigid registration of three-dimensional ultrasound and magnetic resonance images of the carotid arteries
    Nuwan D Nanayakkara
    Imaging Research Laboratories, Robarts Research Institute, London, Ontario N6A 5K8, Canada
    Med Phys 36:373-85. 2009
    ..Visual inspection of segmented vessel surfaces also showed a substantial improvement of alignment with this nonrigid registration technique compared to rigid registration...
  9. doi request reprint Estimation of the quasi-static Young's modulus of the eardrum using a pressurization technique
    Nastaran Ghadarghadar
    Department of Electrical and Computer Engineering, Western University, London, Ontario, Canada
    Comput Methods Programs Biomed 110:231-9. 2013
    ..8±1.5MPa. This is comparable to values estimated using indentation testing. The new pressurization-based approach is simpler to use than the indentation-based method for the two reasons noted above...
  10. doi request reprint Measurement of lung hyperelastic properties using inverse finite element approach
    Ali Sadeghi Naini
    Department of Electrical and Computer Engineering, The University of Western Ontario, London, ON, N6A 3K7, Canada
    IEEE Trans Biomed Eng 58:2852-9. 2011
    ....
  11. doi request reprint A "twisting and bending" model-based nonrigid image registration technique for 3-D ultrasound carotid images
    Nuwan D Nanayakkara
    Imaging Research Laboratories, Robarts Research Institute and Graduate Program in Biomedical Engineering, The University of Western Ontario, London, ON N6A5K8, Canada
    IEEE Trans Med Imaging 27:1378-88. 2008
    ..80 +/-0.26 mm using our nonrigid registration technique, which was a significant improvement in registration accuracy over rigid registration, even with reduced degrees-of-freedom compared to the other nonrigid registration algorithms...
  12. doi request reprint Toward in vivo lung's tissue incompressibility characterization for tumor motion modeling in radiation therapy
    Zahra Shirzadi
    Graduate Program in Biomedical Engineering, Western University, London, Ontario N6A 5B9, Canada
    Med Phys 40:051902. 2013
    ..This investigation shows that considering variable tissue incompressibility parameter is very important for predicting tumor motion accurately, hence improving the lung radiotherapy outcome...
  13. doi request reprint Statistical finite element method for real-time tissue mechanics analysis
    Seyed Reza Mousavi
    Department of Electrical and Computer Engineering, University of Western Ontario, London, Ontario, Canada
    Comput Methods Biomech Biomed Engin 15:595-608. 2012
    ..Average deformation errors of less than 2% demonstrate the accuracy of the proposed technique...
  14. doi request reprint Measuring the quasi-static Young's modulus of the eardrum using an indentation technique
    S Mohammad Hesabgar
    Department of Electrical and Computer Engineering, The University of Western Ontario, London, Ont, Canada
    Hear Res 263:168-76. 2010
    ....
  15. ncbi request reprint CT image construction of a totally deflated lung using deformable model extrapolation
    Ali Sadeghi Naini
    Department of Electrical and Computer Engineering, The University of Western Ontario, London, Ontario N6A 5B9, Canada
    Med Phys 38:872-83. 2011
    ..S. images. However, given that such preoperative images correspond to an inflated lung, such CT images need to be processed to construct CT images pertaining to the lung's deflated state...
  16. doi request reprint Statistical finite element analysis
    Iman Khalaji
    Electrical Engineering Department, University of Western Ontario, London N6A5B9, Canada
    Conf Proc IEEE Eng Med Biol Soc 2008:5577-80. 2008
    ..The proposed technique can be applied in many biomedical applications such as image guided surgery, or virtual reality environment development where tissue behavior is simulated for training purposes...
  17. ncbi request reprint Towards a biomechanical-based method for assessing myocardial tissue viability
    Cristian A Linte
    Biomed Eng, Univ of Western Ontario, London, ON, Canada
    Conf Proc IEEE Eng Med Biol Soc 1:2884-7. 2006
    ..The result consists of a display-map of the contraction force distribution superimposed on the anatomical ventricle model, which allows the clinician to identify regions of low contractility in the myocardium...
  18. doi request reprint Measurement of the hyperelastic properties of 44 pathological ex vivo breast tissue samples
    Joseph J O'Hagan
    Department of Electrical and Computer Engineering, University of Western Ontario, London, ON, Canada
    Phys Med Biol 54:2557-69. 2009
    ....
  19. doi request reprint CT-enhanced ultrasound image of a totally deflated lung for image-guided minimally invasive tumor ablative procedures
    Ali Sadeghi Naini
    Department of Electrical and Computer Engineering, The University of Western Ontario, London, ON N6A 3K7, Canada
    IEEE Trans Biomed Eng 57:2627-30. 2010
    ..The obtained results indicate that very considerable improvement was achieved in the quality of the input intraoperative US images of the deflated lung...
  20. ncbi request reprint Detecting mechanical abnormalities in prostate tissue using FE-based image registration
    Patrick Courtis
    Department of Electrical and Computer Engineering, University of Western Ontario
    Med Image Comput Comput Assist Interv 10:244-51. 2007
    ..Results from the phantom study showed that the technique could detect the increased stiffness of the simulated tumor with a reasonable accuracy...
  21. ncbi request reprint Towards clinical prostate ultrasound elastography using full inversion approach
    Seyed Reza Mousavi
    Department of Electrical and Computer Engineering, Western University, London, Ontario N6A 5B9, Canada
    Med Phys 41:033501. 2014
    ..Unlike digital rectal examination, this technique is quantitative, capable of accurately detecting small prostate lesions that cannot be sensed by manual palpation, and its accuracy is independent of the physician's experience...
  22. doi request reprint Towards ultrasound probe positioning optimization during prostate needle biopsy using pressure feedback
    Seyed Reza Mousavi
    Department of Electrical and Computer Engineering, Western University, London, ON, Canada
    Int J Comput Assist Radiol Surg 8:1053-61. 2013
    ..As such, contact pressure feedback can be utilized to ensure consistent minimum contact between the probe and prostate...
  23. doi request reprint A constrained reconstruction technique of hyperelasticity parameters for breast cancer assessment
    Hatef Mehrabian
    Department of Electrical and Computer Engineering, University of Western Ontario, London, ON, Canada
    Phys Med Biol 55:7489-508. 2010
    ..6%, respectively. Given that the parameter ratios of the abnormal tissues to the normal ones range from three times to more than ten times, this accuracy is sufficient for tumor classification...
  24. ncbi request reprint MR validation of soft tissue mimicing phantom deformation as modeled by nonlinear finite element analysis
    Justin Sciarretta
    Department of Medical Biophysics, University of Toronto, North York, Ontario, Canada
    Med Phys 29:65-72. 2002
    ..A minimum difference was reached when the Poisson's ratio and coefficient of friction were set to 0.485 and 0.3, respectively. Under these conditions, the root mean square difference was found to be 14.4%...
  25. ncbi request reprint Measurement of in vivo cerebral volumetric strain induced by the Valsalva maneuver
    Seyed Reza Mousavi
    Department of Electrical and Computer Engineering, University of Western Ontario, Ontario, Canada
    J Biomech 47:1652-7. 2014
    ..These results add knowledge to the understanding of the brain׳s biomechanical properties under physiological conditions. ..
  26. doi request reprint Estimation of lung's air volume and its variations throughout respiratory CT image sequences
    Ali Sadeghi Naini
    Department of Electrical and Computer Engineering, The University of Western Ontario, London, ON N6A 3K7, Canada
    IEEE Trans Biomed Eng 58:152-8. 2011
    ..The results indicate a very good ability of the proposed method for estimating the lung's air volume and its variations in a respiratory image sequence...
  27. ncbi request reprint Observation of nonlinear shear wave propagation using magnetic resonance elastography
    Ingolf Sack
    Institute of Radiology, Charite University Medicine Berlin, Humboldt University Berlin, Berlin, Germany
    Magn Reson Med 52:842-50. 2004
    ..Using an estimate of the strain energy of the phantom, we were able to determine the nonlinear tissue properties...