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Atlas-based segmentation of brain tumor images using a Markov Random Field-based tumor growth model and non-rigid registration

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5 Author(s)
Bauer, S. ; Inst. of Surg. Technol. & Biomech., Univ. of Bern, Bern, Switzerland ; Seiler, C. ; Bardyn, T. ; Buechler, P.
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We propose a new and clinically oriented approach to perform atlas-based segmentation of brain tumor images. A mesh-free method is used to model tumor-induced soft tissue deformations in a healthy brain atlas image with subsequent registration of the modified atlas to a pathologic patient image. The atlas is seeded with a tumor position prior and tumor growth simulating the tumor mass effect is performed with the aim of improving the registration accuracy in case of patients with space-occupying lesions. We perform tests on 2D axial slices of five different patient data sets and show that the approach gives good results for the segmentation of white matter, grey matter, cerebrospinal fluid and the tumor.

Published in:

Engineering in Medicine and Biology Society (EMBC), 2010 Annual International Conference of the IEEE

Date of Conference:

Aug. 31 2010-Sept. 4 2010