Article Figures & Data
Figures
- FIG 1.
Products of automated head CT segmentation. Routine clinical head CT (A), brain-extracted image (B), and CSF eliminated (brain parenchyma) (C).
- FIG 2.
Scatterplots of computed brain metrics as a function of subject age: brain volume (A), BPF (B), mean brain radiodensity (C), and brain radiomass (D).
- FIG 3.
Box-and-whisker plots of BPF: 0–3 years (left) and 5–20 years (right). Tabular data below 0–3 years (Table 1). Data scatter is greater immediately after birth and decreases during the first 2 years, and the pattern is similar between the sexes. There is no significant difference between the mean BPF of the groupings. Table 2 shows statistically significant difference between the means of 5-year groupings.
- FIG 4.
Quantile regression of brain volume (upper graphs) and BPF (lower graphs), male on the left, female on the right. The 5%–95% and 10%–90% quantiles are shown.
Tables
Male Female Age (yr) Total Mean SD Total Mean SD 0–0.5 20 0.845 0.047 17 0.84 0.062 0.5–1.0 15 0.86 0.018 23 0.86 0.035 1.0–1.5 12 0.87 0.022 13 0.87 0.024 1.5–2.0 10 0.86 0.030 7 0.87 0.033 2.0–2.5 4 0.87 0.005 2 0.89 0.014 2.5–3.0 2 0.89 0.000 4 0.88 0.014 Age (yr) Total Mean 5–10 Years (P Value) 10–15 Years (P Value) Male 5–10 18 0.872 10–15 20 0.879 NS 15–20 72 0.891 <.001 .004 Female 5–10 12 0.874 10–15 20 0.877 NS 15–20 70 0.889 .003 .003 Note:—NS indicates not significant.
