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. 2022 Dec 14;19:100. doi: 10.1186/s12987-022-00394-0

Table 2.

Normalized powers in the respiratory (R) and cardiac (HR1-2–3) bands, for Internal Carotid Artery (ICA), Internal Jugular vein (IJV), and cerebrospinal fluid (CSF)

Region of interest F PN PD F vs PN F vs PD PN vs PD
Respiratory band (R) ICA 0.01 [0.01–0.07] 0.03 [0.01–0.11] 0.07 [0.02–0.44]  < 0.001  < 0.001  < 0.001
IJV 0.06 [0.01–0.52] 0.10 [0.01–0.49] 0.31 [0.04–0.74]#  < 0.001  < 0.001  < 0.001
CSF 0.02 [0.01–0.17] 0.05 [0.01–0.28] 0.13 [0.02–0.42]  < 0.001  < 0.001  < 0.001
Cardiac band HR1-2–3 ICA 0.84 [0.63–0.92] 0.81 [0.56–0.91] 0.67 [0.35–0.84] 0.489  < 0.001 0.002
IJV 0.77 [0.25–0.91] 0.63 [0.13–0.88] 0.30 [0.1–0.87]#  < 0.001  < 0.001  < 0.001
CSF 0.90 [0.78–0.96] 0.87 [0.67–0.93] 0.72 [0.47–0.9] 0.019  < 0.001  < 0.001

Median [range] values are provided. Free (F), paced normal (PN), paced and deep (PD) breathing are compared, and the Bonferroni-corrected p-values of the paired comparisons are reported. The comparisons between the two bands were all significant with p < 0.001, with the exception of #p = 1