Figure 2
From: Using carpet plots to analyze transit times of low frequency oscillations in resting state fMRI

Comparison of conventional carpet plot and SHAG carpet plot for rs-fMRI (top row) and DSC-MRI (bottom row). Column (a) presents conventional carpet plots with no voxel ordering. Column (b) presents SHAG carpet plots with reordered voxels. For the rs SHAG carpet plot in the top row, voxels below the red line are those which would later be removed (cropped) from the carpet plot in order to perform edge detection. We note that voxels were similarly cropped from DSC SHAG carpet plots, however the percentage of voxels was so small that it could not be clearly labeled in this figure. Column (c) presents SHAG carpet plots segmented by the predominant tissue type in the voxel (gray matter (GM), white matter (WM), and cerebrospinal fluid (CSF)). GM, WM, and CSF masks were generated by MATLAB-based software (v1.0, http://doi.org/10.5281/zenodo.3871362)25. For the segmented rs SHAG carpet plot, the white dotted line in each tissue section separates the voxels which would later be cropped. Yellow arrows indicate a motion artifact.