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  • Brawanski, Alexander (1)
  • Doenitz, Christian (1)
  • Palm, Christoph (1)
  • Weber, Joachim (1)

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Data-Parallel MRI Brain Segmentation in Clinicial Use (2015)
Weber, Joachim ; Doenitz, Christian ; Brawanski, Alexander ; Palm, Christoph
Structural MRI brain analysis and segmentation is a crucial part in the daily routine in neurosurgery for intervention planning. Exemplarily, the free software FSL-FAST (FMRIB’s Segmentation Library – FMRIB’s Automated Segmentation Tool) in version 4 is used for segmentation of brain tissue types. To speed up the segmentation procedure by parallel execution, we transferred FSL-FAST to a General Purpose Graphics Processing Unit (GPGPU) using Open Computing Language (OpenCL) [1]. The necessary steps for parallelization resulted in substantially different and less useful results. Therefore, the underlying methods were revised and adapted yielding computational overhead. Nevertheless, we achieved a speed-up factor of 3.59 from CPU to GPGPU execution, as well providing similar useful or even better results.
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