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. Author manuscript; available in PMC: 2019 Feb 1.
Published in final edited form as: J Magn Reson Imaging. 2017 May 26;47(2):487–498. doi: 10.1002/jmri.25773

Table 2.

Velocity magnitude distribution summary by age and gender group

Age Groups Gender

Parameters 9–15 years (n=9) 16–20 years (n=13) 21–39 years (n=27) 40–59 years (n=40) > 60 years (n=9) P-value Men (n=57) Women (n=41) P-value
Aortic Valve Peak Velocity (m/s) 1.32±0.11 1.27±0.16 1.07±0.18 1.28±0.23 1.42±0.33 <0.001 1.28±0.25 1.18±0.21 0.050
Incidence (rel. # of aortic voxels >1m/s, %) 18±10 19±12 12±12 6±5 4±2 <0.001 10±11 11±9 0.721
Mean (m/s) 0.74±0.08 0.75±0.10 0.68±0.13 0.61±0.12 0.52±0.09 <0.001 0.64±0.15 0.67±0.11 0.209
Median (m/s) 0.75±0.09 0.76±0.11 0.68±0.14 0.59±0.13 0.49±0.09 <0.001 0.63±0.16 0.67±0.11 0.154
Standard Deviation (m/s) 0.26±0.03 0.24±0.04 0.22±0.05 0.19±0.03 0.22±0.06 <0.001 0.21±0.05 0.22±0.04 0.606
Skewness −0.15±0.17 −0.12±0.19 0.08±0.31 0.77±0.58 1.45±0.51 <0.001 0.59±0.73 0.24±0.50 0.010
Kurtosis −0.67±0.17 −0.65±0.15 −0.41±0.56 1.36±1.43 3.35±2.03 <0.001 0.99±1.81 0.07±1.34 0.007