Table 2.

Inter-individual and intra-individual comparison of PVAT in AAA patients and controls.

Cohort	Investigated section	HUclose	HUdistant	HUΔ	HUratio
	(i) Inter-individual (AAA vs controls)
AAA	Aneurysmal segment	−75.0 ± 11.4	−83.9 ± 13.5	8.9 ± 5.1	89.8 ± 5.7
Control	Infrarenal segment	−76.5 ± 10.4	−83.4 ± 12.5	6.9 ± 4.8	92.1 ± 5.5
	P-values	0.337	0.808	0.006	0.004
	(ii) Intra-individual (aneurysmal vs non-aneurysmal segments)
AAA	Aneurysmal segment	−75.0 ± 11.4	−83.9 ± 13.5	8.9 ± 5.1	89.8 ± 5.7
AAA	Unaffected segment	−73.0 ± 10.5	−78.5 ± 11.9	5.5 ± 4.1	93.3 ± 4.9
	P-values	< 0.001	< 0.001	< 0.001	< 0.001

HU_close: mean attenuation of PVAT in Hounsfield units within 2 to 5 mm distance from the aortic wall. HU_distant: mean attenuation of PVAT in Hounsfield units within 10 to 12 mm distance from the aortic wall. HU_Δ: Mean difference of attenuation. HU_ratio = HU_close / HU_distant.

Significant values are in bold.