| pubmed-article:16279079 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:16279079 | lifeskim:mentions | umls-concept:C1514821 | lld:lifeskim |
| pubmed-article:16279079 | lifeskim:mentions | umls-concept:C0006104 | lld:lifeskim |
| pubmed-article:16279079 | lifeskim:mentions | umls-concept:C0333051 | lld:lifeskim |
| pubmed-article:16279079 | lifeskim:mentions | umls-concept:C0024485 | lld:lifeskim |
| pubmed-article:16279079 | lifeskim:mentions | umls-concept:C0456904 | lld:lifeskim |
| pubmed-article:16279079 | pubmed:issue | 11 | lld:pubmed |
| pubmed-article:16279079 | pubmed:dateCreated | 2005-11-10 | lld:pubmed |
| pubmed-article:16279079 | pubmed:abstractText | We present a new algorithm to register 3-D preoperative magnetic resonance (MR) images to intraoperative MR images of the brain which have undergone brain shift. This algorithm relies on a robust estimation of the deformation from a sparse noisy set of measured displacements. We propose a new framework to compute the displacement field in an iterative process, allowing the solution to gradually move from an approximation formulation (minimizing the sum of a regularization term and a data error term) to an interpolation formulation (least square minimization of the data error term). An outlier rejection step is introduced in this gradual registration process using a weighted least trimmed squares approach, aiming at improving the robustness of the algorithm. We use a patient-specific model discretized with the finite element method in order to ensure a realistic mechanical behavior of the brain tissue. To meet the clinical time constraint, we parallelized the slowest step of the algorithm so that we can perform a full 3-D image registration in 35 s (including the image update time) on a heterogeneous cluster of 15 personal computers. The algorithm has been tested on six cases of brain tumor resection, presenting a brain shift of up to 14 mm. The results show a good ability to recover large displacements, and a limited decrease of accuracy near the tumor resection cavity. | lld:pubmed |
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| pubmed-article:16279079 | pubmed:language | eng | lld:pubmed |
| pubmed-article:16279079 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:16279079 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:16279079 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:16279079 | pubmed:month | Nov | lld:pubmed |
| pubmed-article:16279079 | pubmed:issn | 0278-0062 | lld:pubmed |
| pubmed-article:16279079 | pubmed:author | pubmed-author:KikinisRonR | lld:pubmed |
| pubmed-article:16279079 | pubmed:author | pubmed-author:JoleszFerenc... | lld:pubmed |
| pubmed-article:16279079 | pubmed:author | pubmed-author:WarfieldSimon... | lld:pubmed |
| pubmed-article:16279079 | pubmed:author | pubmed-author:AyacheNichola... | lld:pubmed |
| pubmed-article:16279079 | pubmed:author | pubmed-author:DelingetteHer... | lld:pubmed |
| pubmed-article:16279079 | pubmed:author | pubmed-author:GolbyAlexandr... | lld:pubmed |
| pubmed-article:16279079 | pubmed:author | pubmed-author:TalosIon-Flor... | lld:pubmed |
| pubmed-article:16279079 | pubmed:author | pubmed-author:ClatzOlivierO | lld:pubmed |
| pubmed-article:16279079 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:16279079 | pubmed:volume | 24 | lld:pubmed |
| pubmed-article:16279079 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:16279079 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:16279079 | pubmed:pagination | 1417-27 | lld:pubmed |
| pubmed-article:16279079 | pubmed:dateRevised | 2011-8-1 | lld:pubmed |
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| pubmed-article:16279079 | pubmed:year | 2005 | lld:pubmed |
| pubmed-article:16279079 | pubmed:articleTitle | Robust nonrigid registration to capture brain shift from intraoperative MRI. | lld:pubmed |
| pubmed-article:16279079 | pubmed:affiliation | Epidaure Research Project, INRIA Sophia Antipolis, 06902 Sophia Antipolis Cedex, France. olivier.clatz@sophia.inria.fr | lld:pubmed |
| pubmed-article:16279079 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:16279079 | pubmed:publicationType | Research Support, U.S. Gov't, P.H.S. | lld:pubmed |
| pubmed-article:16279079 | pubmed:publicationType | Research Support, U.S. Gov't, Non-P.H.S. | lld:pubmed |
| pubmed-article:16279079 | pubmed:publicationType | Research Support, Non-U.S. Gov't | lld:pubmed |
| pubmed-article:16279079 | pubmed:publicationType | Research Support, N.I.H., Extramural | lld:pubmed |
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