Arterial supply
A unique feature of the liver is that it is nourished by a dual blood supply: 75% via the portal vein, and the remainder from the hepatic artery. Blood is drained from the liver by the hepatic veins.
The Hepatic Arterial Circulation |
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liver applied biology hepatic artery normal anatomy arteriogaphy arteriogram Copyright 2012 Courtesy Ashley Davidoff MD 22773c2WL1 |
Celiac Axis and Branches |
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The digital angiogram shows the major branches of the celiac axis which is the foregut artery. The celiac axis divides into two major vessels including the common hepatic artery and the splenic artery. Sometimes the it also gives rise to the left gastric artery. The two major branches of the common hepatic artery are the gastroduodenal artery and the proper hepatic artery.. The unlabelled secondary branches of the splenic artery include branches to the body and tail of the pancreas, the short gastric arteries and the terminal branches to the spleen. The gastroduodenal artery supplies branches to the pancreatic head, the duodenum, and the greater curvature of the stomach. Copyright 2012 Courtesy Ashley Davidoff MD 39762L02 |
CT of the Celiac Axis |
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liver artery celiac axis hepatic artery potra hepatic normal anatomy Copyright 2012 Courtesy Ashley Davidoff MD 24963 W |
The Porta Hepatis |
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liver bile duct gallbladder pancreas spleen splenic vein splenic artery portal vein hepatic artery fx normal anatomy drawing art Copyright 2012 Courtesy Ashley Davidoff MD 41774 |
The common hepatic artery
the common hepatic artery medium sized muscular artery structurally characterised by its distribution to the liver pancreatic head stomach and duodenum functionally characterised by supplying 25% of liver blood supply arising from celiac axis artery of the aorta dividing into gastroduodenal artery proper hepatic artery common diseases include atherosclerosis clinical presentation trauma but otherwise uncommon for the hepatic artery and itsbranches to be sole cause of disease diagnostic studies include US Angio treatment is commonly by radiologic intervention
Proper hepatic artery
The proper hepatic artery s a medium sized muscular artery structurally characterised by its position in the porta hepatis functionally characterised by supplying 25% of liver blood supply arising from the common hepatic artery after the gastroduodenal artery dividing into the right middle left hepatic arteries common diseases include atherosclerosis clinical presentation trauma but otherwise uncommon for the hepatic artery and its branches to be sole cause of disease diagnostic studies include US Angio treatment is commonly by interventional radiology
Right hepatic artery
The right hepatic artery is a small sized muscular artery supplying the right lobe of the liver structurally characterised by major artery of the right lobe of liver functionally characterised by oxygenated supply of the right lobe of the liver arising from proper hepati artery dividing into segmental branches common diseases include atherosclerosis clinical presentation trauma but otherwise uncommon for the hepatic artery and its branches to be sole cause of disease diagnostic studies include US Angio treatment is commonly by radiologic intervention
Middle hepatic artery
The middle hepatic artery is a small muscular artery structurally characterised by its distribution to the left medial segment functionally characterised by supply of oxygenated blood to the medial segment of the left lobe part of foregut artery celiac axis hepatic arterial supply branching into subsegmental branches common diseases include atherosclerosis clinical presentation uncommon for the hepatic artery and its branches to be sole cause of disease diagnostic studies include US Angio treatment is commonly by radiologic intervention
Left hepatic artery
Left hepatic artery
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liver porta hepatis portal triad hepatic artery portal vein common bile duct CBD relations Mickey Mouse normal anatomy Courtesy Ashley Davidoff MD 24964 R 3 |
Ultrasound of the Porta Hepatis |
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bile duct CBD portal vein right hepatic artery common bile duct common hepatic duct extrahepatic pancreas normal size position anatomy USscan Copyright 2012 Courtesy Ashley Davidoff MD 47020 |
The Portal Triad at the Level of the Lobule |
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liver + portal triad lobule + anatomy histology portal vein bile duct hepatic artery central vein hepatic vein Copyright 2012 Courtesy Ashley Davidoff MD 13009 W13 |
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liver portal vein hepatic artery doppler hepatopetal flow retrograde flow reversed flow dx portal hypertension dx cirrhosis USscan color flow doppler Courtesy Philips Medical Systems 39467 |
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hx 45 year old male with previous abdominal surgery presents with abdominal pain portal triad portal vein fx air dx hypercoaguable state CTscan Courtesy Ashley Davidoff MD 43251 |
Dissection of the Hepatic Artery |
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50 year old male presents with abdominal pain to the ER liver left hepatic artery fx focal aneurysmal dilatation of the proximal left hepatic artery fx focal narrowing of the mid portion at site of dissection dx spontaneous dissection of the left hepatic artey complicated by intraperitoneal rupture., treated by coil embolisation The common and right hepatic artery arose from the SMA Copyright 2012 Courtesy Ashley Davidoff MD 45278b |