Table 3

- Reference point entrance dose for the analyzed vascualr and interventional procedures.

Study description	Reference point entrance dose (air kerma) Gy
Study description	n	Mean±SD	Median	25th percentile	75th percentile	Range	Minimum	Maximum
Arteriovenous dialysis access	455	0.08±0.25	0.03	0.01	0.07	3.51	0	3.5
Axial embolization	259	1.58±1.75	0.94	0.38	2.13	9.4	0.01	9.4
Central veins recanalization	46	0.75±0.98	0.26	0.13	0.95	3.72	0.03	3.8
Gastrostomy new insertion	1000	0.02±0.03	0.01	0.01	0.02	0.57	0	0.6
Hepatic artery mapping	148	1.87±1.83	1.43	0.65	2.42	14.57	0	15
IVC filter insertion	244	0.08±0.21	0.04	0.03	0.08	2.36	0	2.4
IVC filter removal	116	0.24±0.44	0.08	0.04	0.18	2.31	0.01	2.3
LE angiography/angioplasty	279	0.19±0.36	0.08	0.04	0.19	3.93	0	3.9
Lumbar puncture	264	0.03±0.08	0.01	0	0.02	0.86	0	0.9
Nephrostomy	276	0.12±0.2	0.06	0.03	0.14	1.84	0	1.8
Peritoneal dialysis catheter	69	0.18±0.21	0.1	0.04	0.25	1.09	0	1.1
PICC insertion	2712	0.01±0.06	0	0	0.01	2.36	0	2.4
Post liver transplant interventions	25	2.48±2.35	1.44	0.9	3.47	9.71	0.31	10
PTC & biliary drainage	335	0.45±0.63	0.2	0.08	0.5	4.65	0	4.7
TACE	251	2.69±1.81	2.14	1.37	3.51	8.12	0.17	8.3
TARE	113	0.79±0.84	0.48	0.26	0.97	4.48	0.06	4.5
TIPSS-creation	49	4.99±3.95	4.49	2.3	6.66	19.86	0.59	20
TIPSS-revision	55	1.27±2.08	0.51	0.2	1.41	11.15	0.07	11
Tunneled catheter placement	2151	0.02±0.08	0.01	0	0.01	1.96	0	2
Uterine fibroid embolization	21	1.65±1.89	1.18	0.61	1.99	9	0.21	9.2
Varicocele embolization	19	0.48±0.41	0.39	0.14	0.71	1.52	0.07	1.6
Vertebroplasty	55	0.8±0.97	0.45	0.19	0.92	4.35	0	4.4

IVC: inferior vena cava, LE: extremity, PICC: peripherally inserted central catheter, PTC: percutaneous transhepatic cholangiography, TACE: trans arterial chemoembolisation, TARE: Trans-arterial radio-embolization, TIPSS: transjugular intrahepatic portosystemic shunt, N: number, SD: standard deviation