Perivascular FAI (HU)

p-value

Pearson correlation coefficient

p-value for Pearson correlation coefficient

CCTA

from −30 to −190 HU

−70.0 ±9.5

NCCT

from −30 to −190 HU

−77.3 ± 9.7

<0.001

0.76

<0.001

from −20 to −180 HU

−73.5 ± 10.8

0.11

0.76

<0.001

from −10 to −170 HU

−70.4 ± 12.0

0.87

0.75

<0.001