Table 2.

Number of abnormal arterial assessments within the cohort (from a possible n = 48 for each location) identified by a consensus of four radiologist observers with cardiovascular MRI experience.

Arterial segment	Grade 1	Grade 2	Grade 3	Grade 4	Total (%)	Fleiss' kappa
R int. carotid	0	0	0	0	0 (0%)	0.89
L int. carotid	2	0	0	0	2 (4.2%)	0.90
R vertebral	0	0	0	0	0 (0%)	0.97
L vertebral	0	0	0	0	0 (0%)	0.94
Aortic arch	0	0	0	0	0 (0%)	0.99
Innominate	0	0	0	0	0 (0%)	1
R com. carotid	0	0	0	0	0 (0%)	0.99
L com. carotid	1	0	0	0	1 (2.1%)	0.93
R subclavian	2	0	0	0	2 (4.2%)	0.88
L subclavian	0	0	0	0	0 (0%)	0.90
Thoracic aorta	1	0	0	0	1 (2.1%)	0.86
Abdominal aorta	10	0	0	0	10 (21%)	0.81
Coeliac trunk	6	5	6	1	18 (37.5%)	0.66
Sup. mesenteric	1	0	0	0	1 (2.1%)	0.88
Inf. mesenteric	0	0	1	0	1 (2.1%)	0.91
R renal	1	0	0	0	1 (2.1%)	0.93
L renal	0	0	0	0	0 (0%)	0.94
R iliac	4	0	0	0	4 (8.4%)	0.90
L iliac	3	0	1	0	4 (8.4%)	0.87
R femoral	1	0	0	0	1 (2.1%)	0.91
L femoral	2	0	0	0	2 (4.2%)	0.91
R profunda	0	0	0	0	0 (0%)	0.96
L profunda	0	0	0	0	0 (0%)	0.99
R popliteal	0	0	0	0	0 (0%)	0.97
L popliteal	0	0	0	0	0 (0%)	1
R ant. tibial	0	0	0	0	0 (0%)	0.93
L ant. tibial	0	0	0	0	0 (0%)	0.97
R peroneal	0	0	1	0	1 (2.1%)	0.96
L peroneal	0	0	2	0	2 (4.2%)	0.95
R post. tibial	0	0	0	1	1 (2.1%)	0.96
L post. tibial	0	0	0	1	1 (2.1%)	0.93

The frequency of disease was highest at the coeliac axis.

Interobserver agreement for each site is described by Fleiss' kappa statistic.

R, right; L, left; Int, internal; Com, common; Sup, superior; Inf, inferior; Ant, anterior; Post, posterior.