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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