"1: standard anatomy ~60% (range 55-61%)"
"2: replaced LHA from LGA ~7.5% (range 3-10%)"
"3: replaced RHA from SMA ~10% (range 8-11 %)"
"4: replaced RHA from SMA and LHA from LGA ~1%"
"5: accessory LHA from LGA ~10% (range 8-11%)"
"6: accessory RHA from SMA ~5% (range 1.5-7%)"
"7: accessory RHA and LHA ~1%"
"8: accessory RHA and LHA and replaced LHA or RHA ~2.5%"
"9: CHA replaced to SMA ~3% (range 2-4.5%)"
"10: CHA replaced to LGA ~0.5%"
"An accessory hepatic artery is one which arises from an anomalous origin and supplies a portion of the liver along with another artery."
"A replaced hepatic artery is one which arises from an anomalous origin and supplies a portion of the liver solely."
"A classification of hepatic artery variant anatomy was described by Michels N in 1966 6,8,9:"
"Another common finding, though not considered a variant by many authors, is trifurcation of the common hepatic artery into the right hepatic artery, left hepatic artery and gastroduodenal artery (GDA). With this branching pattern, there is no proper hepatic artery (PHA)."
Expected headings
"Variant anatomy"
"Common hepatic artery (CHA)"
"Right hepatic artery (RHA)"
"Left hepatic artery (LHA)"
"Right and left hepatic arteries"
"Middle hepatic artery (MHA)"
"Classification"
"trifurcation into RHA, LHA and GDA: ~6% (range 4-8%)"
"PHA replaced to SMA; GDA origin from aorta"