Table 4 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 low-stenosis and high-stenosis plaques.

sp_CC1

50% ± 27%

57% ± 23%

0.27

sp_CC2

85% ± 16%

82% ± 15%

0.14

sp_CC3

75% ± 18%

80% ± 14%

0.23

mean_CC1 (s)

0.41 ± 0.20

0.40 ± 0.20

0.98

mean_CC2 (s)

0.16 ± 0.15

0.23 ± 0.14

0.03

mean_CC3 (s)

0.27 ± 0.15*

0.29 ± 0.15*

0.49

min_CC1 (s)

0.03 ± 0.07

0.02 ± 0.08

0.03

max_CC2 (s)

0.66 ± 0.41

0.94 ± 0.26

0.00

stdev_CC2 (s)

0.19 ± 0.13

0.29 ± 0.12

0.00