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Table 1 CSF temporal properties measured in supine and upright position

From: Upright versus supine MRI: effects of body position on craniocervical CSF flow

Measurements Group Average %Change from Upright Paired t-test (p-value)
Upright Supine
Heart rate (BPM) 76.09 ± 9.50 68.89 ± 10.83 − 9.5 8.43E−05
Systolic fractional duration (%Cycle) 30.9 ± 4.5 37.7 ± 6.4 22.6 1.89E−06
Diastolic fractional duration (%Cycle) 69.1 ± 4.5 62.3 ± 6.4 − 10.1 2.05E−06
Systolic duration (s) 0.25 ± 0.05 0.34 ± 0.08 36.0 1.06E−07
Diastolic duration (s) 0.55 ± 0.08 0.56 ± 0.12 1.8 0.78
  1. Percentage change was calculated as follows: ((supine-upright)/upright)*100