Postsinusoidal

Using this catheter, the pressure gradient from the intrahepatic site (lobar venous pressure) to the post-hepatic venous site reflects the vascular tone at the postsinusoidal hepatic venous 'sphincters'.

For estimation of volumetric blood flow, red blood cell (RBC) velocity and the respective vessel diameters were measured within 7–10 individual sinusoids and 5 postsinusoidal venules per animal [7 ].