Table 2.

(a) Use of in-room shielding per procedure group, (b) Crosstabs of relative FO and FT dose (E_FO/DAP and E_FT/DAP) with and without ceiling-mounted shielding

(a)	Table-side shield use (%)	Leaded ceiling-suspendedshield use (%)	N
Cerebral interventions	68	49	112
AV fistula interventions	48	32	62
Percutaneous gastrostomy	75	36	28
Biliary interventions	64	40	58
Visceral and renal artery int.	71	52	82
Endovascular aortic repair	0	0	63
Percutaneous nephrostomy	43	26	32
Iliac artery interventions	60	53	54
Venous interventions	48	30	68
Femoral and crural artery int.	61	54	28

(b) E FO/DAP (n = 440)	Without	With	p value
Table-side shield	1.11 ± 1.67 µSv/Gy cm² (n = 171)	1.10 ± 1.62 µSv/Gy cm² (n = 269)	p = 0.95
Ceiling-suspended shield	1.17 ± 1.85 µSv/Gy cm² (n = 258)	1.01 ± 1.31 µSv/Gy cm² (182)	p = 0.32

E FT/DAP (n = 415)	Without	With
Table-side shield	0.57 ± 1.45 µSv/Gy cm² (n = 155)	0.460 ± 1.16 µSv/Gy cm² (n = 260)	p = 0.39
Ceiling-suspended shield	0.57 ± 1.37 µSv/Gy cm² (n = 234)	0.41 ± 1.13 µSv/Gy cm² (181)	p = 0.19