Abstract
The easiest and most commonly used method to register the MRI and MEG datasets is point matching, where a few ‘fiducial’ points, i.e. nasion, 2 preauriculars, are marked during the acquisition of either technique. Another methodology involves the use of a stereotactic frame. In either case, the registration of the two modalities requires the definition of the correct transformation matrix with respect to scaling, translation and rotation parameters. We have exploited both the above strategies and, in general, root mean square (RMS) mismatches per point of less than 1 mm (simulations) or 6 mm (general practice with real data) were achieved.
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