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Table 2 Hemodynamic variables and ratio of flow velocities

From: Target heart rate to determine the normal value of coronary flow reserve during dobutamine stress echocardiography

 

VELOC (cm/seg)

HR (bpm)

Correlation with baseline flow in each stage

% increase

MAP (MmHg)

% HR increase

Baseline

24.93

64

 

0.00

94.4

 

5 MCG

27.36

64.7

1.1

9.88

98.4

1.09375

10 MCG

31.1

69.6

1.3

24.90

98.9

8.75

20 MCG

38.9

81.2

1.5

56.22

99.5

26.875

30 MCG

46

99

1.8

84.74

93.3

54.6875

40 MCG

57.9

118

2.3

132.53

89.8

84,375

50 MCG

60.24

126.9

2.67

183.90

88.6

98.28125