Appearance of aseptic vascular grafts after endovascular aortic repair on [(18)F]fluorodeoxyglucose positron emission tomography/computed tomography

Table 1 Maximum standardized uptake value and uptake ratios for aortic graft locations

Location	SUVmax	Uptake ratio
Proximal aortic graft	2.8 ± 0.8	1.1 ± 0.3
Mid aortic graft	2.9 ± 0.8	1.2 ± 0.3
Distal aortic graft	3.0 ± 0.9	1.2 ± 0.3
Background	2.5 ± 0.5	-

SUV_max: Maximum standardized uptake value.

Table 2 Maximum standardized uptake value for grafts and background (ascending aorta), uptake ratios are listed for grafts

Location	SUVmax	Uptake ratio
Aortic graft	2.9 ± 0.8	1.2 ± 0.3
Left Iliac graft	2.7 ± 0.8	1.1 ± 0.3
Right Iliac graft	2.8 ± 0.8	1.2 ± 0.4
Background	2.5 ± 0.5	-

SUV_max: Maximum standardized uptake value.

Table 3 Graft age and uptake ratios segregated into quartiles by graft age

Graft, age, quartile	Graft age (mo)	Uptake ratio
		Aortic graft	L-Iliac graft	R-Iliac graft
1	9 ± 4	1.2 ± 0.2	1.1 ± 0.2a	1.1 ± 0.2a
2	31 ± 10	1.1 ± 0.2a	1.1 ± 0.2a	1.1 ± 0.2a
3	60 ± 9	1.1 ± 0.3a	1.1 ± 0.3a	1.1 ± 0.4a
4	107 ± 24	1.3 ± 0.3	1.3 ± 0.4	1.4 ± 0.4

^aP < 0.05 versus graft age quartile #4.

Table 4 Frequency of visual uptake patterns for all grafts and uptake ratios

Visual uptake pattern	n	Uptake ratio
Diffuse	300	1.1 ± 0.3
Focal	6	1.8 ± 0.7a

^aP < 0.05 versus “Diffuse”.

Table 5 Frequency of visual uptake patterns and uptake ratios analyzed by graft type

Visual uptake pattern	PT grafts		PTFE grafts
	n	Uptake ratio	n	Uptake ratio
Diffuse	85	1.2 ± 0.3	77	1.1 ± 0.2
Focal	2	1.9 ± 0.7a	1	1.5

^aP < 0.05 versus “Diffuse”.

PT: Polyethylene terephthalate; PTFE: Polytetrafluoroethylene.