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Table 2 Demographics and CMR parameters in healthy controls versus MI patients

From: Left ventricular blood flow kinetic energy after myocardial infarction - insights from 4D flow cardiovascular magnetic resonance

 

Controls (n = 20)

MI Patients(n = 48)

P-value†

P-value‡

 

pEF (12)

rEF (36)

  

Age (years)

52.3 ± 11.2

57.1 ± 10

57.3 ± 12

0.10

0.93

Gender (Male, n)

12

9

30

0.07

0.53

Body surface area

1.8 ± 0.2

1.9 ± 0.3

1.98 ± 0.4

0.69

0.68

Acute MI (n)

–

8

27

–

0.58

Heart rate (bpm)

65 ± 12

58 ± 10

66 ± 14

0.75

0.045

Standard CMR clinical parameters

 LVMi (g/m2)

51.0 ± 10.2

57.7 ± 16.6

62 ± 19

0.02

0.46

 LVEDVi (ml/m2)

81.6 ± 15.6

80 ± 10

103 ± 30

0.02

0.01

 LVESVi (ml/m2)

30.0 ± 7.4

32 ± 6

64 ± 30

< 0.01

< 0.01

 SVi (ml/m2)

51.6 ± 10.7

48 ± 5

38 ± 9

< 0.01

< 0.01

 EF (%)

63.1 ± 5.6

60 ± 3

39 ± 11

< 0.01

< 0.01

 IS (% of LV)

–

12.3 ± 9

25 ± 12

–

< 0.01

 CI (L/min/m2)

3.3 ± 0.9

2.7 ± 0.47

2.5 ± 4.6

0.03

0.11

LV KEiEDV parameters

 LV (μJ/ml)

8.5 ± 2.7

7 ± 4

6.3 ± 3

0.02a

0.11

 Minimal (μJ/ml)

0.95 ± 0.63

0.5 ± 0.3

0.8 ± 0.6

0.02a

0.02

 Systolic (μJ/ml)

9.2 ± 3.8

8.4 ± 6

6.4 ± 2

< 0.01a

< 0.01

 Diastolic (μJ/ml)

7.5 ± 4.2

7 ± 3

6.3 ± 3.5

0.29

0.92

 E-wave (μJ/ml)

22.0 ± 10.2

19 ± 8

15 ± 9

0.02a

0.30

 A-wave (μJ/ml)

12.5 ± 5.6

14 ± 9

10.6 ± 7

0.22

< 0.01

 In-plane LV (%)

36.5 ± 7.2

31 ± 4.4

38 ± 8

0.84

< 0.01

 TD (msecs)

11 ± 31

33.6 ± 12

34.2 ± 52

< 0.01a

0.21

  1. Data is presented as mean ± standard deviation (SD) or count (n) for demographics and standard CMR parameters and median ± inter-quartile range (IQR) for KE parameters. LV measurements are indexed to body surface area
  2. All KE values are indexed for LV end-diastolic volume
  3. LVEDVi Left ventricular end diastolic volume (indexed), LVESVi Left ventricular end systolic volume (indexed), LVMi left ventricular mass (indexed), MV mitral valve, SVi stroke volume (indexed)
  4. aparameters which went in forward regression
  5. †P-values comparing controls versus MI patients
  6. ‡= P-values comparing pEF group versus rEF group