Difference between revisions of "Projects:LeftAtriumSegmentation"
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Back to [[Algorithm:BU|Boston University Algorithms]] | Back to [[Algorithm:BU|Boston University Algorithms]] | ||
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+ | = Automatic Segmentation of Left Atrium using Variational Region Growing= | ||
+ | The planning and evaluation of left atrial ablation procedures is commonly based on the segmentation of the left | ||
+ | atrium, which is a challenging task due to large anatomical variations. | ||
+ | |||
= Description = | = Description = | ||
− | + | We propose an automatic approach for segmenting the left atrium from magnetic resonance imagery | |
− | + | (MRI). The segmentation problem is formulated as a problem in variational region growing. In particular, the method starts | |
+ | locally by searching for a seed region of the left atrium from a given MR slice. A global constraint is imposed by applying a | ||
+ | shape prior to the left atrium represented by Zernike moments. The overall growing process is guided by the robust statistics of | ||
+ | intensities from the seed region along with the shape prior to capture the whole atrial region. |
Revision as of 19:31, 19 November 2012
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Automatic Segmentation of Left Atrium using Variational Region Growing
The planning and evaluation of left atrial ablation procedures is commonly based on the segmentation of the left atrium, which is a challenging task due to large anatomical variations.
Description
We propose an automatic approach for segmenting the left atrium from magnetic resonance imagery (MRI). The segmentation problem is formulated as a problem in variational region growing. In particular, the method starts locally by searching for a seed region of the left atrium from a given MR slice. A global constraint is imposed by applying a shape prior to the left atrium represented by Zernike moments. The overall growing process is guided by the robust statistics of intensities from the seed region along with the shape prior to capture the whole atrial region.