大脑中动脉出血MCADoppler大脑中动脉收缩期


MCA Doppler:大脑中动脉收缩期

ExpectedPeakVelocityofSystolicBloodFlowintheMiddleCerebralArteryasaFunctionofGestationalAge

Velocity=cm/s

MultiplesoftheMedian

GestationalAge(wks)1.00

1.29

1.50

1.55

18

23.2

29.9

34.8

36.0

2025.5

32.8

38.2

39.5

2227.9

36.0

41.9

43.3

2430.7

39.5

46.0

47.5

2633.6

43.3

50.4

52.1

2836.9

47.6

55.4

57.2

3040.5

52.2

60.7

62.8

3244.4

57.3

66.6

68.9

3448.7

62.9

73.1

75.6

3653.5

69.0

80.2

82.9

3858.7

75.7

88.0

91.0

4064.4

83.0

96.6

99.8

From:ri,ter,rpenter,hman,mmermann,ise,al.,nglJMed(),pp.9–14

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