Y90-radioembolization via variant hepatic arteries: Is there a relevant risk for non-target embolization?

Table 1 Patient characteristics

	Total n = 24
Male/female	12/12
Mean age (yr)	60 ± 10
Type of tumor
Hepatocellular carcinoma	10
Colorectal cancer	4
Breast cancer	3
Pancreatic cancer	2
Neuroendocrine tumor of the gastrointestinal tract	2
Endometrial carcinoma	1
Cholangiocellular carcinoma	1
Oropharyngeal cancer	1
Hepatic vascular anatomy
Left hepatic artery originating from left gastric artery	11
Right hepatic artery originating from superior mesenteric artery	13
Distance between microcatheter tip and last enteric side branch (cm)
Left hepatic artery originating from left gastric artery	3.2 ± 1.0
Right hepatic artery originating from superior mesenteric artery	5.0 ± 1.7
Mean administered activity (Mbq)
Treatment of left hepatic lobe	612 ± 190
Treatment of right hepatic lobe	1262 ± 540

The values are expressed as means ± standard deviation. Mbq: Megabecquerel.