7/2/2004 SSCC/NIMH 22
Relationships between surface models
¥Surface Geometry:
Hrefers to the spatial coordinates of the nodes forming the surface model
¥Surface Topology:
Hrefers to the connectivity between nodes forming the surface model
¥Models with different geometry but similar topology are created for each surface model.
Hwhite/grey, pial, inflated, spherical, flattened, etc.
¥Some modelsÕ geometries are anatomically correct
HPial and/or white matter surfaces can be used for relating to volume data.
HInflated, flattened and spherical cannot be directly linked to volume data. The link is done via their corresponding anatomically-correct surfaces.