Fig. 3
From: Cortical pencil lining on SWI MRI in NBIA and healthy aging
Age-related regional SWI signal intensity. Normalized signal intensity ratio (NSIR) (ratio between the signal intensity of the lateral ventricle and a region of interest (ROI); right and left hemisphere values are averaged) and the signal intensity of the ROI in five subcortical nuclei: globus pallidus (a), red nucleus (b), dentate nucleus (c), caudate nucleus (d), and putamen (e) over time. Red rounds, blue triangles and green squares denote healthy females, healthy males and NBIA subjects, respectively. The thick continuous line is the smoothened conditional mean of healthy subjects. The shade around the line represents the simultaneous prediction bounds of the 95% confidence intervals for the mean. X-axis: age in years; Y-axis: NSIR