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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)

Median

Interquartile range

Median

Interquartile range

Median

Interquartile range

Age (years)

35.0

27.7–43.7

67.5***

57.8–72.2

47.8

34.1–66.9

BMI (kg/m2)

22.2

20.6–24.8

24.6**

23.1–26.3

23.7

21.4–25.7

HR (bpm)

66.0

62–77

62.5

59.3–67.3

64.0

60–71

SBP (mmHg)

105

99–116

117**

113–122

114

103–119

DBP (mmHg)

77

70-83

81

74–86

78.7

73-85

PP (mmHg)

28

26-32

39***

32–43

32

28-40

LVM/ESV(g/ml)

1.1

1–1.3

1.3*

1–1.6

1.2

1–1.4

LVM/EDV(g/ml)

0.65

0.59–0.75

0.81*

0.64–0.92

0.72

0.62–0.87

Cf-PWV(m/s)

8.1

7.1–9

10.3***

9.6–11

9.5

7.9–10.3

BH-PWV(m/s)

4.9

4.0–5.2

9.4***

7.6–11.5

6.1

4.8–9.41

4D flow CMR aoPWV

 Strategy 1 - TTc (m/s)

5.8

5.1–7.5

9.3***

7.8–10.6

7.5

5.5–9.9

 Strategy 1 - TTw (m/s)

6.4

5.5–8.2

11.1***

8.8–13.8

8.5

6.3–11.8

 Strategy 1 - TTf (m/s)

5.5

4.7–6.4

7.8***

6.5–12.8

6.4

5.4–8.5

 Strategy 2 - TTc (m/s)

4.9

4.7–6.5

8.0***

6.8–10

6.5

4.9–8.2

 Strategy 2- TTw (m/s)

6.0

5.3–8.1

10.4***

8.6–12.5

8.4

5.9–10.4

 Strategy 2- TTf (m/s)

5.7

5.2–6.4

8.2***

7.2–9.9

6.4

5.6–8.6

 Strategy 3 (m/s)

5.5

5.1–7.7

9.2***

7.8–10.8

7.6

5.4–9.3

  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