Table 2 p values of all slopes for each index regressed against age, heart rate, sex, CBF, and velocity for each vascular root and combined. Significant values at a threshold of p < 0.05 are bolded. p values first show the general trend, and then bracketed (male|female) trend. Abbreviations: basilar artery (BA), cerebral blood flow (CBF), heart rate (HR), left internal carotid artery (LICA), right internal carotid artery (RICA).
From: Measuring global cerebrovascular pulsatility transmission using 4D flow MRI
p value of trend | ||||
|---|---|---|---|---|
LICA | RICA | BA | LICA + RICA + BA | |
\({p}_{pi}\) | ||||
Age | 0.09 (0.67|0.04) | 0.01 (0.96|0.00) | 0.04 (0.02|0.00) | 0.00 (0.15|0.00) |
HR | 0.69 (0.22|0.61) | 0.63 (0.82|0.69) | 0.76 (0.20|0.22) | 0.70 (0.10|0.61) |
CBF | 0.28 (0.02|0.19) | 0.38 (0.68|0.05) | 0.62 (0.78|0.15) | 0.98 (0.09|0.04) |
Velocity | 0.86 (0.74|0.41) | 0.10 (0.38|0.07) | 0.11 (0.47|0.12) | 0.88 (0.82|0.60) |
Quality | 0.03 (0.15|0.14) | 0.03 (0.80|0.01) | 0.82 (0.67|0.31) | 0.01 (0.98|0.00) |
\({p}_{df}\) | ||||
Age | 0.36 (0.66|0.24) | 0.29 (0.95|0.46) | 0.17 (0.18|0.74) | 0.08 (0.08|0.81) |
HR | 0.34 (0.13|0.59) | 0.59 (0.34|0.14) | 0.02 (0.04|0.10) | 0.13 (0.00|0.33) |
CBF | 0.36 (0.37|0.74) | 0.14 (0.23|0.49) | 0.10 (0.10|0.79) | 0.02 (0.05|0.49) |
Velocity | 0.75 (0.74|0.66) | 0.76 (0.50|0.04) | 0.10 (0.09|0.93) | 0.65 (0.48|0.66) |
Quality | 0.28 (0.70|0.05) | 0.10 (0.05|0.83) | 0.56 (0.39|0.16) | 0.03 (0.04|0.64) |
\({p}_{tc}\) | ||||
Age | 0.35(0.12|0.43) | 0.10 (0.01|0.96) | 0.07 (0.17|0.27) | 0.02 (0.00|0.58) |
HR | 0.06 (0.05| 0.46) | 0.46 (0.50|0.69) | 0.01 (0.00|0.21) | 0.00 (0.00|0.16) |
CBF | 0.31 (0.30|0.70) | 0.01 (0.04|0.15) | 0.30 (0.51|0.45) | 0.00 (0.00|0.03) |
Velocity | 0.39 (0.76|0.33) | 0.74 (0.35|0.61) | 0.19 (0.18|0.60) | 0.41 (0.50|0.49) |
Quality | 0.40 (0.28|0.68) | 0.67 (0.47|0.30) | 0.68 (0.82|0.70) | 0.09 (0.07|0.85) |
