Patient characteristicsa

Unconfounded CasesPosterior Fossa TumorsP Value
Total No. of patients6016
Age (yr)8.7 (6–14)7.8 (4–10).095
Sex: female30 (50.0%)6 (37.5%).543
Contrast-enhanced MRIs7 (5–9)14.5 (11.2–16)<.001
First-to-last MRI with contrast (yr)3.1 (1.3–4.7)3.4 (1.4–4.7).794
Accumulated dose of gadoterate dimeglumine (mL)48.5 (31.1–87.2)63.8 (49.8–130.5).161
Mean ratio change of dentate to pons0.028 (0.007–0.049)0.090 (0.049–0.132)<.001
Mean ratio change of globus pallidus to thalamus0.034 (0.013–0.055)0.130 (0.091–0.168)<.001
  • Note:—min indicates minimum; max, maximum.

  • a Data are presented as means with 95% confidence intervals in parentheses.