FIGURE 2.

Frequency distribution of different common space registrations grouped by imaging modality and across all modalities (Total). The DWI category includes studies employing diffusion tensor imaging (DTI), diffusion kurtosis imaging (DKI), and any other modality based upon DWI (e.g., neurite orientation dispersion and density imaging). The sMRI category refers to structural MRI studies, and fMRI/rsfMRI to task and resting state functional MRI studies. A single study can be counted twice if multiple modalities were used