Computational Diffusion MRI by Enrico Kaden Francesco Grussu Lipeng Ning Chantal M. W. Tax & Jelle Veraart

Author:Enrico Kaden, Francesco Grussu, Lipeng Ning, Chantal M. W. Tax & Jelle Veraart
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

2 Methods

2.1 Models

The measured signal in a voxel S j was modeled to originate from up to two fiber compartments and an isotropic compartment:

(1)

where S 0 denotes the signal without diffusion weighing, f i and f iso are the volume fractions of the different compartments, b j stands for the strength of the diffusion gradient of the corresponding gradient direction g j , D i is the 3 × 3 diffusion tensor of each fiber compartment, and lastly D iso denotes the isotropic diffusion coefficient [21].

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