Coloring of DT-MRI fiber traces using Laplacian Eigenmaps

Brun, Anders,1976-Laboratory of Mathematics in Imaging, Brigham and Women’s Hospital, Harvard Medical School, Boston, USA (author)

We propose a novel post processing method for visualization of fiber traces from DT-MRI data. Using a recently proposed non-linear dimensionality reduction technique, Laplacian eigenmaps [3], we create a mapping from a set of fiber traces to a low dimensional Euclidean space. Laplacian eigenmaps constructs this mapping so that similar traces are mapped to similar points, given a custom made pairwise similarity measure for fiber traces. We demonstrate that when the low-dimensional space is the RGB color space, this can be used to visualize fiber traces in a way which enhances the perception of fiber bundles and connectivity in the human brain.

Park, Hae-JeongClinical Neuroscience Div., Lab. of Neuroscience, Boston VA Health Care System-Brockton Division, Dep. of Psychiatry, Harvard Medical School, and Surgical Planning Laboratory, Brigham and Women’s Hospital, Harvard Medical School, (author)
Knutsson, Hans,1950-Linköpings universitet,Medicinsk informatik,Tekniska högskolan,Centrum för medicinsk bildvetenskap och visualisering, CMIV(Swepub:liu)hankn25 (author)
Westin, Carl-FredrikLaboratory of Mathematics in Imaging, Brigham and Women’s Hospital, Harvard Medical School, Boston, USA(Swepub:liu)carwe18 (author)
Laboratory of Mathematics in Imaging, Brigham and Women’s Hospital, Harvard Medical School, Boston, USAClinical Neuroscience Div., Lab. of Neuroscience, Boston VA Health Care System-Brockton Division, Dep. of Psychiatry, Harvard Medical School, and Surgical Planning Laboratory, Brigham and Women’s Hospital, Harvard Medical School, (creator_code:org_t)

In:Computer Aided Systems Theory - EUROCAST 2003Berlin, Heidelberg : Springer Berlin/Heidelberg, s. 518-52997835402022199783540452102

By the author/editor: Brun, Anders, 19 ...; Park, Hae-Jeong; Knutsson, Hans, ...; Westin, Carl-Fre ...

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