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Table 1 (a) Ipsilateral (b) Contralateral—average correlation coefficient for each subject and test as well as overall

From: A mobile battery-powered brain perfusion ultrasound (BPU) device designed for prehospital stroke diagnosis: correlation to perfusion MRI in healthy volunteers

Subjects

Test

IPSI Left

Average Corr. Coeff

IPSI Right

Average Corr. Coeff

(a)

#1

1

0.58

0.93

2

0.92

0.76

#2

1

–*

0.76

2

0.98

0.86

#3

1

-0.64

0.96

2

0.84

0.93

#4

1

0.65

0.79

2

0.85

#5

1

0.71

0.92

2

0.91

0.67

#6

1

0.97

2

0.99

#7

1

0.70

2

0.72

#8

1

0.64

0.98

2

0.87

0.92

#9

1

0.96

0.99

2

0.97

0.90

#10

1

-0.15

0.99

2

0.16

#11

1

0.95

0.96

2

0.97

0.88

Overall Average

Corr. Coeff

 

0.76

 

Subjects

Test

CONTRA Left–Right

Average Corr. Coeff

CONTRA Right-Left

Average Corr. Coeff

(b)

#1

1

0.75

0.83

2

0.97

0.97

#2

1

0.96

0.97

2

0.97

0.87

#3

1

0.77

0.92

2

0.96

0.88

#4

1

0.86

0.93

2

0.72

0.78

#5

1

0.98

0.94

2

0.97

0.92

#6

1

0.73

0.84

2

0.67

0.90

#7

1

0.89

0.76

2

0.98

0.94

#8

1

0.97

0.97

2

0.86

0.96

#9

1

0.94

0.93

2

0.94

0.94

#10

1

0.77

0.98

2

0.61

0.96

#11

1

0.97

0.96

2

0.97

0.91

Overall Average

Corr. Coeff

 

0.89

 
  1. * ‘–’: signal peak could not be detected due to individual, unfavorable signal-to-noise ratio