Gradient based elastic property reconstruction in digital image correlation elastography
Aim: A Conjugate Gradient implementation of the Digital Image Correlation Elastography method is presented. Method: The gradient is calculated using the adjoint method, requiring only two forward solutions regardless of the number of mechanical properties to reconstruct. A power-law based multi-freq...
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2020-01-01
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| Series: | Journal of Medical Physics |
| Subjects: | |
| Online Access: | http://www.jmp.org.in/article.asp?issn=0971-6203;year=2020;volume=45;issue=3;spage=168;epage=174;aulast=Brazy |
| _version_ | 1818976199263649792 |
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| author | Alexandre Brazy Elijah Van Houten |
| author_facet | Alexandre Brazy Elijah Van Houten |
| author_sort | Alexandre Brazy |
| collection | DOAJ |
| description | Aim: A Conjugate Gradient implementation of the Digital Image Correlation Elastography method is presented. Method: The gradient is calculated using the adjoint method, requiring only two forward solutions regardless of the number of mechanical properties to reconstruct. A power-law based multi-frequency viscoelastic model is used to relate the reconstructed mechanical properties and the Digital Image Correlation surface displacement measurements. Result: The method is tested against harmonic surface motion fields generated through numerical simulation and measured on a silicon phantom. Conclusion: Reconstruction results show the ability of the gradient reconstruction method to detect stiff internal inclusions in simulated and phantom data. |
| first_indexed | 2024-12-20T16:08:03Z |
| format | Article |
| id | doaj.art-746d9b3f24064c29926e289b70f59fba |
| institution | Directory Open Access Journal |
| issn | 0971-6203 1998-3913 |
| language | English |
| last_indexed | 2024-12-20T16:08:03Z |
| publishDate | 2020-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Journal of Medical Physics |
| spelling | doaj.art-746d9b3f24064c29926e289b70f59fba2022-12-21T19:34:04ZengWolters Kluwer Medknow PublicationsJournal of Medical Physics0971-62031998-39132020-01-0145316817410.4103/jmp.JMP_99_19Gradient based elastic property reconstruction in digital image correlation elastographyAlexandre BrazyElijah Van HoutenAim: A Conjugate Gradient implementation of the Digital Image Correlation Elastography method is presented. Method: The gradient is calculated using the adjoint method, requiring only two forward solutions regardless of the number of mechanical properties to reconstruct. A power-law based multi-frequency viscoelastic model is used to relate the reconstructed mechanical properties and the Digital Image Correlation surface displacement measurements. Result: The method is tested against harmonic surface motion fields generated through numerical simulation and measured on a silicon phantom. Conclusion: Reconstruction results show the ability of the gradient reconstruction method to detect stiff internal inclusions in simulated and phantom data.http://www.jmp.org.in/article.asp?issn=0971-6203;year=2020;volume=45;issue=3;spage=168;epage=174;aulast=Brazydigital image correlation elastographyelastographyvisco-elastic |
| spellingShingle | Alexandre Brazy Elijah Van Houten Gradient based elastic property reconstruction in digital image correlation elastography Journal of Medical Physics digital image correlation elastography elastography visco-elastic |
| title | Gradient based elastic property reconstruction in digital image correlation elastography |
| title_full | Gradient based elastic property reconstruction in digital image correlation elastography |
| title_fullStr | Gradient based elastic property reconstruction in digital image correlation elastography |
| title_full_unstemmed | Gradient based elastic property reconstruction in digital image correlation elastography |
| title_short | Gradient based elastic property reconstruction in digital image correlation elastography |
| title_sort | gradient based elastic property reconstruction in digital image correlation elastography |
| topic | digital image correlation elastography elastography visco-elastic |
| url | http://www.jmp.org.in/article.asp?issn=0971-6203;year=2020;volume=45;issue=3;spage=168;epage=174;aulast=Brazy |
| work_keys_str_mv | AT alexandrebrazy gradientbasedelasticpropertyreconstructionindigitalimagecorrelationelastography AT elijahvanhouten gradientbasedelasticpropertyreconstructionindigitalimagecorrelationelastography |