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Table 1 Subjects characteristics and pulse wave velocity estimates

From: Comparison of different methods for the estimation of aortic pulse wave velocity from 4D flow cardiovascular magnetic resonance

 20–49 year-old subjects (N = 25, F = 12)50–79 year-old subjects (N = 22, F = 12)All subjects (N = 47, F = 24)
MedianInterquartile rangeMedianInterquartile rangeMedianInterquartile range
Age (years)35.027.7–43.767.5***57.8–72.247.834.1–66.9
BMI (kg/m2)22.220.6–24.824.6**23.1–26.323.721.4–25.7
HR (bpm)66.062–7762.559.3–67.364.060–71
SBP (mmHg)10599–116117**113–122114103–119
DBP (mmHg)7770-838174–8678.773-85
PP (mmHg)2826-3239***32–433228-40
LVM/ESV(g/ml)1.11–1.31.3*1–1.61.21–1.4
LVM/EDV(g/ml)0.650.59–0.750.81*0.64–0.920.720.62–0.87
Cf-PWV(m/s)8.17.1–910.3***9.6–119.57.9–10.3
BH-PWV(m/s)4.94.0–5.29.4***7.6–11.56.14.8–9.41
4D flow CMR aoPWV
 Strategy 1 - TTc (m/s)5.85.1–7.59.3***7.8–10.67.55.5–9.9
 Strategy 1 - TTw (m/s)6.45.5–8.211.1***8.8–13.88.56.3–11.8
 Strategy 1 - TTf (m/s)5.54.7–6.47.8***6.5–12.86.45.4–8.5
 Strategy 2 - TTc (m/s)4.94.7–6.58.0***6.8–106.54.9–8.2
 Strategy 2- TTw (m/s)6.05.3–8.110.4***8.6–12.58.45.9–10.4
 Strategy 2- TTf (m/s)5.75.2–6.48.2***7.2–9.96.45.6–8.6
 Strategy 3 (m/s)5.55.1–7.79.2***7.8–10.87.65.4–9.3
  1. N number of subjects, F number of women, BMI body mass index, HR heart rate, SBP systolic blood pressure, DBP diastolic blood pressure, PP pulse pressure, Cf-PWV carotid-femoral pulse wave velocity, LVM/ESV and LVM/EDV left ventricular mass to end-systolic and end-diastolic volume ratios, BH-PWV ascending aorta pulse wave velocity according to the Bramwell Hill Model, TTc, TTw and TTf transit times estimated using cross-correlation, wavelets and Fourier transforms, respectively. Levels of significance were indicated by *** for p < 0.001, ** for p < 0.01, * for p < 0.05, for comparisons between the 2 age groups