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Editor: KatieHayes
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Revision 6 as of 2018-01-16 16:12:33
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Editor: EmmaBoyd
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= Fixing Common Topological Defects =

== Motivation ==

Why do we need to fix topological defects?
 * Non-unique mapping to sphere

Why do topological defects occur?
 * Segmentation errors
 * Fill errors

== Manual ==
 * Holes
  * WM classified as non-WM
  * Fix by filling
   * Example: filling ventricle
    
 * Handles
  * non-WM classified as WM
  * Fix by cutting
   * Example: removing optic nerve

 * (Other areas: fornix, basal ganglia, temporal strands)

== Automatic ==