The CHARM, SARM, D99 atlases are all distributed with simple surfaces for each atlas region. You can also use a whole brain surface too. You can map functions or ROI values onto a surface with 3dVol2Surf. For any particular surface, you can get measures and metrics for a surface with SurfMeasures and SurfaceMetrics. SurfInfo can give some general information too. Even with surface data, most of the 3D tools can also be used for various tasks here too (3dBrickStat, 3dmasktool, 3dROIstats).
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