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Table 2 Summary of the trigger event results

From: Doppler ultrasound cardiac gating of intracranial flow at 7T

 

DUS

 

ECG

 

POX

False positive triggers

     

 Range (median)

0–28 (0)

 

1–95 (15)

 

0–273 (3)

 Mean ± SD

5.3 ± 11

 

25 ± 31

 

47 ± 89

  

p = 0.031(*)

 

p = 0.078 (ns)

 

False negative triggers

  

 Range (median)

0–58 (16)

 

0–111 (11)

 

0–126 (7)

 Mean ± SD

18 ± 19

 

22 ± 34

 

32 ± 50

  

p = 0.64 (ns)

 

p = 0.57 (ns)

 

Sensitivity (%)

  

 Range (median)

90–100 (97)

 

79–100 (95)

 

13–100 (99)

 Mean ± SD

96 ± 3.5

 

93 ± 7.7

 

86 ± 28

  

p = 0.37 (ns)

 

p = 0.30 (ns)