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Table 4 An overview of phase contrast MRI parameters in various body mass index (BMI) groups

From: Is cerebral spinal fluid flow associated with body mass index and head circumference in healthy children? A phase contrast magnetic resonance imaging study

GroupPeak velocity (cm/sn)Mean velocity (cm/sn)Forward flow volume (ml)Reverse flow volume (ml)Net volume (ml)Mean aqueductal area (mm2)
1 (BMI ≤ 5%, n = 20)5.11 ± 2.200.79 ± 0.500.013 ± 0.0090.008 ± 0.0050.007 ± 0.0060.018 ± 0.007
2 (BMI between 6-25%, n = 33)5.46 ± 3.160.76 ± 0.660.015 ± 0.0130.013 ± 0.0240.007 ± 0.0080.018 ± 0.008
3 (BMI between 26-50%, n = 36)5.19 ± 2.870.77 ± 0.830.014 ± 0.0100.010 ± 0.0110.006 ± 0.0050.020 ± 0.009
4 (BMI between 51-75%, n = 26)5.88 ± 3.080.69 ± 0.510.018 ± 0.0190.011 ± 0.0120.011 ± 0.0210.022 ± 0.013
5 (BMI between 76-95%, n = 79)5.71 ± 2.980.83 ± 0.470.018 ± 0.0170.012 ± 0.0130.015 ± 0.0240.019 ± 0.007
6 (BMI > 95%, n = 32)5.92 ± 1.960.55 ± 0.450.010 ± 0.0030.021 ± 0.0340.003 ± 0.0020.011 ± 0.006