Pathological implications of the falciform ligament are rare and internal hernias are exceptional. The origin of the falciform ligament defect can be congenital or inflammatory (a satellite of acute cholecystitis) or ...Pathological implications of the falciform ligament are rare and internal hernias are exceptional. The origin of the falciform ligament defect can be congenital or inflammatory (a satellite of acute cholecystitis) or even post-surgical. The internal hernias of the falciform ligament are most often revealed by an acute intestinal obstruction syndrome with an ischemic component. The scanner provides the benchmarking examination allowing us to conduct a positive diagnosis and see also the inherent complications, which drives us to take the appropriate and fast surgical procedures. It is an entity that must be known.展开更多
Objective： To observe the presentation and variation of extrahepatic branches originating from hepatic artery by hepatic arteriography. Methods： Hepatic arteriogram of 200 cases with unresectable hepatic primary or...Objective： To observe the presentation and variation of extrahepatic branches originating from hepatic artery by hepatic arteriography. Methods： Hepatic arteriogram of 200 cases with unresectable hepatic primary or metastatic tumors before interventional therapy were retrospectively analyzed. Two interventional radiologists independently reviewed the type, originating artery, distribution and variation of extrahepatic artery. Results： Five types of extrahepatic artery were found, with the most common type of the right gastric artery （n=156, 78%）, followed by the cystic artery （n=126, 63%）, accessory left gastric artery （n=19, 9.5%）, hepatic falciform artery （n=5, 2.5%）, and accessory left inferior phrenic artery （n=4, 2%）. In 188 cases, there were extrahepatic arteries derived from hepatic proper artery or its branches, and the most frequent originating site was the right hepatic artery （130 extrahepatic branches）, followed by the proper hepatic artery （103 branches）, left hepatic artery （56 branches） and middle hepatic artery （3 branches）. The left hepatic artery was the arising site with the multiple types of extrahepatic branches including all above branches except the cystic artery. Conclusion： Many types of extrahepatic branches usually derive from the hepatic artery or its distal branches, and its originating sites are not constant. It is important to avoid damage of extrahepatic tissue during interventional therapy for liver tumors.展开更多
The liver has eight segments, which are referred to by numbers or by names. The numbering of the segments is done in a counterclockwise manner with the liver being viewed from the inferior surface, starting from Segme...The liver has eight segments, which are referred to by numbers or by names. The numbering of the segments is done in a counterclockwise manner with the liver being viewed from the inferior surface, starting from Segment Ⅰ(the caudate lobe). Standard anatomical description of the liver segments is available by computed tomographic scan and ultrasonography. Endoscopic ultrasound(EUS) has been used for a detailed imaging of many intra-abdominal organs and for the assessment of intra-abdominal vasculature. A stepwise evaluation of the liver segments by EUS has not been described. In this article, we have described a stepwise evaluation of the liver segments by EUS. This information can be useful for planning successful radical surgeries, preparing for biopsy, portal vein embolization, transjugular intrahepatic portosystemic shunt, tumour resection or partial hepatectomy, and for planning EUS guided diagnostic and therapeutic procedures.展开更多
Liver resection surgery can be associated with significant perioperative mortality and morbidity.Extensive knowledge of the vascular anatomy is essential for successful,uncomplicated liver surgeries.Various imaging te...Liver resection surgery can be associated with significant perioperative mortality and morbidity.Extensive knowledge of the vascular anatomy is essential for successful,uncomplicated liver surgeries.Various imaging techniques like multidetector computed tomographic and magnetic resonance angiography are used to provide information about hepatic vasculature.Linear endoscopic ultrasound(EUS)can offer a detailed evaluation of hepatic veins,help in assessment of liver segments and can offer a possible route for EUS guided vascular endotherapy involving hepatic veins.A standard technique for visualization of hepatic veins by linear EUS has not been described.This review paper describes the normal EUS anatomy of hepatic veins and a standard technique for visualization of hepatic veins from four stations.With practice an imaging of all the hepatic veins is possible from four stations.The imaging from fundus of stomach is the easiest and most convenient method of imaging of hepatic veins.EUS of hepatic vein and the tributaries is an operator dependent technique and in expert hands may give a mapping comparable to computed tomographic and magnetic resonance imaging.EUS of hepatic veins can help in identification of individual sectors and segments of liver.EUS guided interventions involving hepatic veins may require approach from different stations.展开更多
文摘Pathological implications of the falciform ligament are rare and internal hernias are exceptional. The origin of the falciform ligament defect can be congenital or inflammatory (a satellite of acute cholecystitis) or even post-surgical. The internal hernias of the falciform ligament are most often revealed by an acute intestinal obstruction syndrome with an ischemic component. The scanner provides the benchmarking examination allowing us to conduct a positive diagnosis and see also the inherent complications, which drives us to take the appropriate and fast surgical procedures. It is an entity that must be known.
文摘Objective： To observe the presentation and variation of extrahepatic branches originating from hepatic artery by hepatic arteriography. Methods： Hepatic arteriogram of 200 cases with unresectable hepatic primary or metastatic tumors before interventional therapy were retrospectively analyzed. Two interventional radiologists independently reviewed the type, originating artery, distribution and variation of extrahepatic artery. Results： Five types of extrahepatic artery were found, with the most common type of the right gastric artery （n=156, 78%）, followed by the cystic artery （n=126, 63%）, accessory left gastric artery （n=19, 9.5%）, hepatic falciform artery （n=5, 2.5%）, and accessory left inferior phrenic artery （n=4, 2%）. In 188 cases, there were extrahepatic arteries derived from hepatic proper artery or its branches, and the most frequent originating site was the right hepatic artery （130 extrahepatic branches）, followed by the proper hepatic artery （103 branches）, left hepatic artery （56 branches） and middle hepatic artery （3 branches）. The left hepatic artery was the arising site with the multiple types of extrahepatic branches including all above branches except the cystic artery. Conclusion： Many types of extrahepatic branches usually derive from the hepatic artery or its distal branches, and its originating sites are not constant. It is important to avoid damage of extrahepatic tissue during interventional therapy for liver tumors.
文摘The liver has eight segments, which are referred to by numbers or by names. The numbering of the segments is done in a counterclockwise manner with the liver being viewed from the inferior surface, starting from Segment Ⅰ(the caudate lobe). Standard anatomical description of the liver segments is available by computed tomographic scan and ultrasonography. Endoscopic ultrasound(EUS) has been used for a detailed imaging of many intra-abdominal organs and for the assessment of intra-abdominal vasculature. A stepwise evaluation of the liver segments by EUS has not been described. In this article, we have described a stepwise evaluation of the liver segments by EUS. This information can be useful for planning successful radical surgeries, preparing for biopsy, portal vein embolization, transjugular intrahepatic portosystemic shunt, tumour resection or partial hepatectomy, and for planning EUS guided diagnostic and therapeutic procedures.
文摘Liver resection surgery can be associated with significant perioperative mortality and morbidity.Extensive knowledge of the vascular anatomy is essential for successful,uncomplicated liver surgeries.Various imaging techniques like multidetector computed tomographic and magnetic resonance angiography are used to provide information about hepatic vasculature.Linear endoscopic ultrasound(EUS)can offer a detailed evaluation of hepatic veins,help in assessment of liver segments and can offer a possible route for EUS guided vascular endotherapy involving hepatic veins.A standard technique for visualization of hepatic veins by linear EUS has not been described.This review paper describes the normal EUS anatomy of hepatic veins and a standard technique for visualization of hepatic veins from four stations.With practice an imaging of all the hepatic veins is possible from four stations.The imaging from fundus of stomach is the easiest and most convenient method of imaging of hepatic veins.EUS of hepatic vein and the tributaries is an operator dependent technique and in expert hands may give a mapping comparable to computed tomographic and magnetic resonance imaging.EUS of hepatic veins can help in identification of individual sectors and segments of liver.EUS guided interventions involving hepatic veins may require approach from different stations.
