3d slicer users group meeting
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3D Slicer Users Group Meeting
AAPM/COMP
Vancouver, August 2, 2011
Nadya ShusharinaDepartment of Radiation OncologyMassachusetts General Hospital
Interactive deformable registration with landmarks
Radial Basis Functions
- TPS (global support)
- Wendland (local support)
- Gaussian (global support with variable kernel width, allowed for local regularization)
Areas of application
• local details of the image, primarily the details of low contrast
• anatomic changes – tumor shrinking– weight loss
• gross body movement– breathing– position variation
• substantial volume change– full vs empty bladder or rectum
Misalignment caused by anatomic changes
Misalignment caused by position variation
Misalignment caused by position variation
Misalignment caused by the rectum enlargement
To learn more
http://www.slicer.org/slicerWiki/index.php/Modules:PlastimatchLANDWARP
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