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Table 1 Cardiac parameters for the five hearts

From: An isolated beating pig heart platform for a comprehensive evaluation of intracardiac blood flow with 4D flow MRI: a feasibility study

 

Heart 1

Heart 2

Heart 3

Heart 4

Heart 5

Mean ± standard deviation

Heart rate

(bpm)

104

98

109

93

123

105 ± 12

Stroke volume flow

(mL)

31

27

41

25

32

31 ± 6

Cardiac output flow

(L/min)

3.2

2.6

4.5

2.3

3.9

3.3 ± 0.9

Regurgitation fraction

(%)

11

19

5

30

16

16 ± 9

End-systolic volume

(mL)

101

122

59

31

71

77 ± 36

End-diastolic volume

(mL)

143

158

113

72

110

119 ± 33

Ejection fraction

(%)

29

22

48

57

36

38 ± 14

Stroke volumevolume

(mL)

42

35

54

41

39

42 ± 7

Cardiac outputvolume

(L/min)

4.4

3.5

5.9

3.8

4.9

4.5 ± 1.0

Annulus size (long axis, short axis)

(mm)

31, 24

32, 23

31, 27

29, 22

31, 22

31 ± 1, 24 ± 2

  1. Heart rate, stroke volume, and cardiac output were calculated from the aortic flow and from left ventricular volume segmentations. Regurgitation fraction was calculated from the aortic flow, and ejection fraction from the volumetric measurements. Aortic annulus diameters were measured during peak systole