Analysis of functional magnetic resonance imaging data considers temporal correlation of hemodynamic intensity patterns to a known activation paradigm as well as spatial regions of similar responses. Default regions of interest are often obtained by analyst-directed thresholding of intensity or correlation values. This paper presents a method to determine data-driven regions of interest using image erosion to identify structurally significant components in the default regions, namely bridge voxels.


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    Title :

    Intensity / Correlation Thresholding of FMRI Data: Data-driven Regions of Interest using Bridge Voxels


    Contributors:
    Alexiuk, M. D. (author) / Pizzi, N. J. (author) / Pedrycz, W. (author)


    Publication date :

    2007-04-01


    Size :

    3915369 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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