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Table 1 Real-time and cine-MRI derived LV hemodynamic and elastic properties

From: The Frank-Starling relationship of the heart revealed in a large animal study utilizing real-time undersampled radial MRI at variable inotropic state and heart rate

 

Real-Time MRI

(rest) (n = 5)

Real-Time MRI

(stress) (n = 5)

Cine MRI

(rest) (n = 5)

Cine MRI

(stress) (n = 5)

Heart rate (bpm)

112.1 +- 22.9*

140.2 +- 20.2*

116.8 +- 21.1

147.6 +- 16.1

EDV (mL)

57.9 +- 13.2

47.0 +- 5.2

61.1 +- 10.7

54.1+-5.7

ESV (mL)

35.3 +- 7.1*

23.6 +- 4.1 *

35.8 +- 8.0

25.3 +- 10.7

SV (mL)

22.7 +- 8.3

23.4 +- 7.5

25.3 +- 5.8

28.9 +- 3.7

EF (%)

38 +- 9*

49 +- 11*

41 +- 7

53 +- 3

CO (L/min)

2.6 +- 0.7

3.2 +- 0.9

2.9 +- 0.6

3.3 +- 1.0

Eed (mmHg/mL)

0.3 +- 0.13

0.28 +- 0.19

N/A

N/A

Ees (mmHg/mL)

1.9 +- 0.7*

3.1 +- 0.3*

N/A

N/A

V0 (mL)

-8.1 +- 13.8

-1.9 +- 4.1

N/A

N/A

Stroke work (mmHg mL)

221.3 +- 51.9*

306.9 +- 96.4*

N/A

N/A

PRSW (mmHg)

6.2 +- 1.2

9.1 +- 0.9

N/A

N/A

  1. * p < 0.05 paired t-test, N/A (not applicable) cine measures of elasticity and work were not possible to measure/not measured.