Table 3 Mean ± standard deviation values and corresponding p-values of the synchronisation percentages, mean phase shift values, and statistically significant features for the three cross-correlation types, for asymptomatic and symptomatic plaques of high stenosis degrees.

sp_CC1

57% ± 23%

53% ± 21%

0.38

sp_CC2

82% ± 15%

79% ± 14%

0.34

sp_CC3

80% ± 14%

76% ± 19%

0.36

mean_CC1 (s)

0.40 ± 0.20

0.47 ± 0.18

0.13

mean_CC2 (s)

0.23 ± 0.14

0.24 ± 0.13

0.51

mean_CC3 (s)

0.29 ± 0.15*

0.32 ± 0.18

0.64

max_CC1 (s)

1.02 ± 0.20

1.14 ± 0.13

0.01

stdev_CC1 (s)

0.33 ± 0.11

0.39 ± 0.09

0.05

max_CC3 (s)

0.96 ± 0.27

1.06 ± 0.24

0.05