Optimization of Effective Parameters on Acoustic Radiation Force Shear Waves Interference Patterns Elastography by Using a Finite Element Model
Purpose: Variations in the mechanical properties of soft tissues may be a sign of a disease. Since some disease like fibrosis or cancer change the stiffness of related tissues, we can assess the disease of a soft tissue with its elasticity. The elastic stiffness properties of soft tissues can be est...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Tehran University of Medical Sciences
2018-06-01
|
| Series: | Frontiers in Biomedical Technologies |
| Subjects: | |
| Online Access: | https://fbt.tums.ac.ir/index.php/fbt/article/view/180 |
| _version_ | 1811260590322089984 |
|---|---|
| author | Vahid Sadeghi Pezhman Pasyar Hassan Rezazadeh Hossein Arabalibeik Bahador Makkiabadi Seyyed Moayyed Alavian |
| author_facet | Vahid Sadeghi Pezhman Pasyar Hassan Rezazadeh Hossein Arabalibeik Bahador Makkiabadi Seyyed Moayyed Alavian |
| author_sort | Vahid Sadeghi |
| collection | DOAJ |
| description | Purpose: Variations in the mechanical properties of soft tissues may be a sign of a disease. Since some disease like fibrosis or cancer change the stiffness of related tissues, we can assess the disease of a soft tissue with its elasticity. The elastic stiffness properties of soft tissues can be estimated using locally induced displacements and shear waves.
Materials and Methods: A two-dimensional plane finite element model has been created as soft tissue. The soft tissue has been exposed to two Amplitude Modulated High Intensity Focused Ultrasound transducer (AMHIFU), hence shear wave interference patterns which can be captured by lower frame rate imaging are generated. The acoustic radiation force created by a self-focusing ultrasound transducer has been determined from an ultrasound pressure field simulation. A Gaussian function was fitted to the resulting Acoustic Radiation Force (ARF) field and implemented in the form of a body force in the finite element model.
Results: The effect of different excitation parameters for their optimization in the elasticity estimation has been investigated.
Conclusion: In the result section, the effect of ARF excitation parameters on shear wave elasticity measurements has been represented. Shear wave interference pattern elastography which does not need high frame rate imaging with optimized parameters can be used as a non-invasive method for measuring the elastic stiffness of soft tissues. |
| first_indexed | 2024-04-12T18:49:46Z |
| format | Article |
| id | doaj.art-0c6ad467e5e247d9b131b90bee00e45b |
| institution | Directory Open Access Journal |
| issn | 2345-5837 |
| language | English |
| last_indexed | 2024-04-12T18:49:46Z |
| publishDate | 2018-06-01 |
| publisher | Tehran University of Medical Sciences |
| record_format | Article |
| series | Frontiers in Biomedical Technologies |
| spelling | doaj.art-0c6ad467e5e247d9b131b90bee00e45b2022-12-22T03:20:31ZengTehran University of Medical SciencesFrontiers in Biomedical Technologies2345-58372018-06-0151-2Optimization of Effective Parameters on Acoustic Radiation Force Shear Waves Interference Patterns Elastography by Using a Finite Element ModelVahid Sadeghi0Pezhman Pasyar1Hassan Rezazadeh2Hossein Arabalibeik3Bahador Makkiabadi4Seyyed Moayyed Alavian5Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran. AND Research Center for Science and Technology in Medicine, Tehran University of Medical Sciences, Tehran, IranDepartment of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran. AND Research Center for Science and Technology in Medicine, Tehran University of Medical Sciences, Tehran, IranDepartment of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran. AND Research Center for Science and Technology in Medicine, Tehran University of Medical Sciences, Tehran, IranResearch Center of Biomedical Technology and Robotics, Tehran University of Medical Sciences, Tehran, IranResearch Center of Biomedical Technology and Robotics, Tehran University of Medical Sciences, Tehran, IranCenter for Gastroenterology and Liver Disease, Baqiyatallah University of Medical Sciences, Tehran, IranPurpose: Variations in the mechanical properties of soft tissues may be a sign of a disease. Since some disease like fibrosis or cancer change the stiffness of related tissues, we can assess the disease of a soft tissue with its elasticity. The elastic stiffness properties of soft tissues can be estimated using locally induced displacements and shear waves. Materials and Methods: A two-dimensional plane finite element model has been created as soft tissue. The soft tissue has been exposed to two Amplitude Modulated High Intensity Focused Ultrasound transducer (AMHIFU), hence shear wave interference patterns which can be captured by lower frame rate imaging are generated. The acoustic radiation force created by a self-focusing ultrasound transducer has been determined from an ultrasound pressure field simulation. A Gaussian function was fitted to the resulting Acoustic Radiation Force (ARF) field and implemented in the form of a body force in the finite element model. Results: The effect of different excitation parameters for their optimization in the elasticity estimation has been investigated. Conclusion: In the result section, the effect of ARF excitation parameters on shear wave elasticity measurements has been represented. Shear wave interference pattern elastography which does not need high frame rate imaging with optimized parameters can be used as a non-invasive method for measuring the elastic stiffness of soft tissues.https://fbt.tums.ac.ir/index.php/fbt/article/view/180ElastographyShear WaveElasticityAcoustic Radiation ForceUltrasoundFinite Element Model |
| spellingShingle | Vahid Sadeghi Pezhman Pasyar Hassan Rezazadeh Hossein Arabalibeik Bahador Makkiabadi Seyyed Moayyed Alavian Optimization of Effective Parameters on Acoustic Radiation Force Shear Waves Interference Patterns Elastography by Using a Finite Element Model Frontiers in Biomedical Technologies Elastography Shear Wave Elasticity Acoustic Radiation Force Ultrasound Finite Element Model |
| title | Optimization of Effective Parameters on Acoustic Radiation Force Shear Waves Interference Patterns Elastography by Using a Finite Element Model |
| title_full | Optimization of Effective Parameters on Acoustic Radiation Force Shear Waves Interference Patterns Elastography by Using a Finite Element Model |
| title_fullStr | Optimization of Effective Parameters on Acoustic Radiation Force Shear Waves Interference Patterns Elastography by Using a Finite Element Model |
| title_full_unstemmed | Optimization of Effective Parameters on Acoustic Radiation Force Shear Waves Interference Patterns Elastography by Using a Finite Element Model |
| title_short | Optimization of Effective Parameters on Acoustic Radiation Force Shear Waves Interference Patterns Elastography by Using a Finite Element Model |
| title_sort | optimization of effective parameters on acoustic radiation force shear waves interference patterns elastography by using a finite element model |
| topic | Elastography Shear Wave Elasticity Acoustic Radiation Force Ultrasound Finite Element Model |
| url | https://fbt.tums.ac.ir/index.php/fbt/article/view/180 |
| work_keys_str_mv | AT vahidsadeghi optimizationofeffectiveparametersonacousticradiationforceshearwavesinterferencepatternselastographybyusingafiniteelementmodel AT pezhmanpasyar optimizationofeffectiveparametersonacousticradiationforceshearwavesinterferencepatternselastographybyusingafiniteelementmodel AT hassanrezazadeh optimizationofeffectiveparametersonacousticradiationforceshearwavesinterferencepatternselastographybyusingafiniteelementmodel AT hosseinarabalibeik optimizationofeffectiveparametersonacousticradiationforceshearwavesinterferencepatternselastographybyusingafiniteelementmodel AT bahadormakkiabadi optimizationofeffectiveparametersonacousticradiationforceshearwavesinterferencepatternselastographybyusingafiniteelementmodel AT seyyedmoayyedalavian optimizationofeffectiveparametersonacousticradiationforceshearwavesinterferencepatternselastographybyusingafiniteelementmodel |