Data-guide for brain deformation in surgery: comparison of linear and nonlinear models
<p>Abstract</p> <p>Background</p> <p>Pre-operative imaging devices generate high-resolution images but intra-operative imaging devices generate low-resolution images. To use high-resolution pre-operative images during surgery, they must be deformed to reflect intra-oper...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
BMC
2010-09-01
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| Series: | BioMedical Engineering OnLine |
| Online Access: | http://www.biomedical-engineering-online.com/content/9/1/51 |
| _version_ | 1811298941377970176 |
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| author | Faraji-Dana Reza Soltanian-Zadeh Hamid Hamidian Hajar Gity Masoumeh |
| author_facet | Faraji-Dana Reza Soltanian-Zadeh Hamid Hamidian Hajar Gity Masoumeh |
| author_sort | Faraji-Dana Reza |
| collection | DOAJ |
| description | <p>Abstract</p> <p>Background</p> <p>Pre-operative imaging devices generate high-resolution images but intra-operative imaging devices generate low-resolution images. To use high-resolution pre-operative images during surgery, they must be deformed to reflect intra-operative geometry of brain.</p> <p>Methods</p> <p>We employ biomechanical models, guided by low resolution intra-operative images, to determine location of normal and abnormal regions of brain after craniotomy. We also employ finite element methods to discretize and solve the related differential equations. In the process, pre- and intra-operative images are utilized and corresponding points are determined and used to optimize parameters of the models. This paper develops a nonlinear model and compares it with linear models while our previous work developed and compared linear models (mechanical and elastic).</p> <p>Results</p> <p>Nonlinear model is evaluated and compared with linear models using simulated and real data. Partial validation using intra-operative images indicates that the proposed models reduce the localization error caused by brain deformation after craniotomy.</p> <p>Conclusions</p> <p>The proposed nonlinear model generates more accurate results than the linear models. When guided by limited intra-operative surface data, it predicts deformation of entire brain. Its execution time is however considerably more than those of linear models.</p> |
| first_indexed | 2024-04-13T06:27:46Z |
| format | Article |
| id | doaj.art-ac5e445172e843c991d540c22e5596af |
| institution | Directory Open Access Journal |
| issn | 1475-925X |
| language | English |
| last_indexed | 2024-04-13T06:27:46Z |
| publishDate | 2010-09-01 |
| publisher | BMC |
| record_format | Article |
| series | BioMedical Engineering OnLine |
| spelling | doaj.art-ac5e445172e843c991d540c22e5596af2022-12-22T02:58:21ZengBMCBioMedical Engineering OnLine1475-925X2010-09-01915110.1186/1475-925X-9-51Data-guide for brain deformation in surgery: comparison of linear and nonlinear modelsFaraji-Dana RezaSoltanian-Zadeh HamidHamidian HajarGity Masoumeh<p>Abstract</p> <p>Background</p> <p>Pre-operative imaging devices generate high-resolution images but intra-operative imaging devices generate low-resolution images. To use high-resolution pre-operative images during surgery, they must be deformed to reflect intra-operative geometry of brain.</p> <p>Methods</p> <p>We employ biomechanical models, guided by low resolution intra-operative images, to determine location of normal and abnormal regions of brain after craniotomy. We also employ finite element methods to discretize and solve the related differential equations. In the process, pre- and intra-operative images are utilized and corresponding points are determined and used to optimize parameters of the models. This paper develops a nonlinear model and compares it with linear models while our previous work developed and compared linear models (mechanical and elastic).</p> <p>Results</p> <p>Nonlinear model is evaluated and compared with linear models using simulated and real data. Partial validation using intra-operative images indicates that the proposed models reduce the localization error caused by brain deformation after craniotomy.</p> <p>Conclusions</p> <p>The proposed nonlinear model generates more accurate results than the linear models. When guided by limited intra-operative surface data, it predicts deformation of entire brain. Its execution time is however considerably more than those of linear models.</p>http://www.biomedical-engineering-online.com/content/9/1/51 |
| spellingShingle | Faraji-Dana Reza Soltanian-Zadeh Hamid Hamidian Hajar Gity Masoumeh Data-guide for brain deformation in surgery: comparison of linear and nonlinear models BioMedical Engineering OnLine |
| title | Data-guide for brain deformation in surgery: comparison of linear and nonlinear models |
| title_full | Data-guide for brain deformation in surgery: comparison of linear and nonlinear models |
| title_fullStr | Data-guide for brain deformation in surgery: comparison of linear and nonlinear models |
| title_full_unstemmed | Data-guide for brain deformation in surgery: comparison of linear and nonlinear models |
| title_short | Data-guide for brain deformation in surgery: comparison of linear and nonlinear models |
| title_sort | data guide for brain deformation in surgery comparison of linear and nonlinear models |
| url | http://www.biomedical-engineering-online.com/content/9/1/51 |
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