Replaced right hepatic artery ultrasound. It also explores specific ultrasound settings Dec 20, 2016 · Commonly visualized vessels arising from the aorta are the celiac artery, splenic artery, left gastric artery, common hepatic artery, proper hepatic artery, gastroduodenal artery, right and left renal arteries, superior mesenteric artery, inferior mesenteric artery, and—below the aortic bifurcation at the level of the fourth lumbar vertebra Aug 23, 2025 · Gross anatomy The proper hepatic artery bifurcates into the right and left hepatic arteries at or before reaching the porta hepatis. This document discusses Doppler ultrasound techniques for assessing visceral arteries, including normal and abnormal findings in various abdominal arteries. Mar 5, 2016 · An arterial signal on spectral Doppler, identification of its SMA origin and a course towards the right lobe of the liver confirm this to be a replaced right hepatic artery. The right hepatic artery passes upwards and turns to the right, crossing behind the common hepatic duct to enter Calot triangle 1. The study outlines the anatomical details of the right hepatic artery that takes its origin from the superior mesenteric artery. It is the most common variant in hepatic arterial anatomy. It is imperative to conserve a good vascular supply to the liver and bile ducts after pancreaticoduodenectomy to prevent complications such as biliary fistula and hepatic ischemia. The accuracy of ultrasonography in detecting the right hepatic artery was prospectively assessed in 128 patients undergoing abdominal angiography. . These are end arteries and supply the right and left halves of the liver respectively. Jan 1, 2025 · This article reports 2 cases of a rare variation, a replaced right hepatic artery arising directly from the celiac trunk. The right hepatic artery arises from the superior mesenteric artery (SMA), also referred to as "replaced to the SMA", in 9 to 15% of the population. Aug 14, 2025 · Variation in hepatic arterial anatomy is seen in 40-45% of people. The common hepatic artery gives rise to the gastroduodenal and right gastric arteries and then continues as the proper hepatic artery, which passes anteriorly over the portal vein and runs to the left of the main bile duct. Prooperative transverse sonogram shows replaced right hepatic artery (solid arrow) arising from superior mesenteric artery (open arrow) and traversing portacaval space. In these cases, the artery courses posterior to the common hepatic artery and then behind the portal vein within the hepatoduodenal ligament. Aug 14, 2025 · Variation in hepatic arterial anatomy is seen in 40-45% of people. Classic branching of the common hepatic artery from the celiac artery, and the proper hepatic artery into right and left hepatic arteries to supply the entire liver, is seen in 55 The right hepatic artery (green arrow) is centered in the hepatic hilum, and courses posterior to the main portal vein, originating from the superior mesenteric artery. It usually gives off the cystic artery within A common hepatic artery originating from the superior mesenteric artery was not identified on preoperative imaging and was discovered intraoperatively. Key topics include the anatomy of the abdominal aorta, celiac axis, superior mesenteric artery, and inferior mesenteric artery, along with Doppler waveforms and indicators of arterial stenosis. Twenty-five (19%) of the ultrasound studies were technically inadequate mainly because of gas superimposition. As the hepatic arteries are both replaced, there is no common hepatic artery, and instead the gastroduodenal artery (blue arrow) arises directly from the celiac artery. Classic branching of the common hepatic artery from the celiac artery, and the proper hepatic artery into right and left hepatic arteries to supply the entire liver, is seen in 55-60% of the population. To the best of our knowledge, this is the first description to emphasize the variations existing in the place where RRHA originates. 7h nh9 awxiu pyg lrcut xffuq2t x2sucfr e9n fte mm93