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- W4251997570 abstract "Objective: Movements of brain tissue during neurosurgical procedures reduce the effectiveness of using pre-operative images for intra-operative surgical guidance. In this paper, we explore the use of acquiring intra-operative ultrasound (US) images for the quantification of and correction for non-linear brain deformations.Materials and Methods: We will present a multi-modal registration strategy that automatically matches pre-operative images (e.g., MRI) to intra-operative US to correct for these deformations. The strategy involves using the predicted appearance of neuroanatomical structures in US images to build “pseudo ultrasound” images based on pre-operative segmented MRI. These images can then be non-linearly registered to intra-operative US using cross-correlation measurements within the ANIMAL package. The feasibility of the theory is demonstrated through its application to clinical patient data acquired during 12 neurosurgical procedures.Results: Results of applying the method to 12 surgical cases, including those with brain tumors and selective amygdalo-hippocampectomies, indicate that our strategy significantly recovers from non-linear brain deformations occurring during surgery. Quantitative results at tumor boundaries indicate up to 87% correction for brain shift.Conclusions: Qualitative and quantitative examination of the results indicate that the system is able to correct for non-linear brain deformations in clinical patient data." @default.
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- W4251997570 date "2004-01-01" @default.
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- W4251997570 title "Automatic non-linear MRI-ultrasound registration for the correction of intra-operative brain deformations" @default.
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- W4251997570 doi "https://doi.org/10.1080/10929080500079248" @default.
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