Table 3.

Aortic vessel wall measurements in the cranial (slice 10) versus caudal slices (slice 2) of the 3D cross-sectional vessel wall scan.

	Lumen area (cm2) cranial slice	Lumen area (cm2) caudal slice	P-value
Scan 1: Observer 1 (reference standard)	2.97 ± 0.78	2.88 ± 0.76	0.017
Scan 1: Observer 1 (repeated analysis)	2.97 ± 0.78	2.87 ± 0.76	0.007
Scan 2: Observer 1	2.98 ± 0.76	2.90 ± 0.75	0.005
Scan 1: Observer 2	2.96 ± 0.78	2.86 ± 0.77	0.009
	Outer wall area (cm2) Cranial slice	Outer wall area (cm2) Caudal slice	P-value
Scan 1: Observer 1 (reference standard)	3.79 ± 0.93	3.64 ± 0.86	0.022
Scan 1: Observer 1 (repeated analysis)	3.78 ± 0.91	3.63± 0.86	0.013
Scan 2: Observer 1	3.81 ± 0.92	3.67 ± 0.83	0.005
Scan 1: Observer 2	3.73 ± 0.93	3.61 ± 0.9	0.013
	Vessel wall area (cm2) Cranial slice	Vessel wall area (cm2) Caudal slice	P-value
Scan 1: Observer 1 (reference standard)	0.83 ± 0.17	0.76 ± 0.12	0.12
Scan 1: Observer 1 (repeated analysis)	0.81 ± 0.16	0.76 ± 0.12	0.12
Scan 2: Observer 1	0.83 ± 0.17	0.77 ± 0.11	0.047
Scan 1: Observer 2	0.78 ± 0.17	0.73 ± 0.12	0.17
	Vessel wall thickness (cm) Cranial slice	Vessel Wall thickness (cm) Caudal slice	P-value
Scan 1: Observer 1 (reference standard)	1.27 ± 0.14	1.19 ± 0.11	0.12
Scan 1: Observer 1 (repeated analysis)	1.26 ± 0.15	1.19 ± 0.10	0.31
Scan 2: Observer 1	1.28 ± 0.13	1.20 ± 0.12	0.074
Scan 1: Observer 2	1.20 ± 0.14	1.15 ± 0.09	0.29