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. Author manuscript; available in PMC: 2023 Apr 13.
Published in final edited form as: Stroke. 2023 Mar 27;54(4):1066–1077. doi: 10.1161/STROKEAHA.122.041880

Figure 1. Methods.

Figure 1

A. Flow chart displaying number of patients included in each sub-cohort used for different fMRI lag analyses in the manuscript. All patients with BH data also had RS data, except for two exclusions due to technical issues and motion. Lesion distributions for each sub-cohort are displayed. Colour map indicates number of patients with lesion at each voxel. B. Lag was measured by shifting the timeseries of one voxel (blue), against that of the grey matter reference signal (orange). C. Correlation with reference at each shift position (left) and optimal lag calculation using parabolic interpolation (right). Positive and negative values indicate lag or lead respectively. D. ROI masks for one patient (1). Masks used to calculate alternative reference signals (2).