| Budget Amount *help |
¥18,200,000 (Direct Cost: ¥14,000,000、Indirect Cost: ¥4,200,000)
Fiscal Year 2015: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2014: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2013: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
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| Outline of Final Research Achievements |
In the past two decades, two-dimensional version of fNIRS has acquired various applications, and has developed to be a three-dimensional imaging technique called diffuse optical tomography (DOT), in which illuminator-detector pairs were formed at various distances in an overlapping ways to reconstruct depth-resolved image. Prerequisite for high-resolution image of DOT is the corresponding subject-specific image of brain and head tissue structures, which are not always available. Thus, we developed the probabilistic version of the atlas-guided DOT and examine its feasibility as an MRI-free approach to anatomically guided DOT image reconstruction. The cost of not using subjects’ own MRIs was reasonablly small. Moreover, we adopted a new method referring to Eigen values to effectively control multiplicity in multi-channel fNIRS using effective multiplicity derived from the eigenvalues of correlation matrices, with Meff being controlled at 10 to 15 in a 44-channel setting.
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