Table 2.
Velocity magnitude distribution summary by age and gender group
| Age Groups | Gender | ||||||||
|---|---|---|---|---|---|---|---|---|---|
|
|
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| 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 |