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Abstract #1388

Spatial Transformations of Fiber Orientation Fields

Rafael Alonso Clarke1,2, Giovanna Rizzo3, Daniela Perani4, Giuseppe Scotti2, Ferruccio Fazio1,3, Paola Scifo1,2

1Nuclear Medicine, San Raffaele Scientific Institute, Milan, -, Italy; 2CERMAC, San Raffaele Scientific Institute, Milan, -, Italy; 3IBFM, CNR, Milan, -, Italy; 4Universit Vita-Salute San Raffaele, Milan, -, Italy

To perform group-level analyses and compare subjects, due to differences in brain shape and size, geometrical transformations must be applied to images to overlap regions.For DTI, the directional information can be considered in transformations using the Preserve Principal Directions method.In this work we present a novel method that we call Preservation of Principal Branches, for the transformation of Fiber Orientation Distribution objects (FODs) that takes into account their specific shapes.