The portal vein, or hepatic portal vein, is the main blood vessel of the portal venous system (PVS), which delivers blood to the liver from the stomach, intestines, spleen, gallbladder, and pancreas.

An ultrasound study was performed to formulate and validate guidelines for femoral venous catheterization. 36 infants (2 wk to 20 mo) were evaluated in a supine, straight leg position. The sector ...