<prompt> Poal hypeension following poal vein thrombosis are guided by all exceptIncrease in splenic pulp pressureIncrease in poal vein pressureIncrease in hepatic vein pressurePoal vein Doppler study  <response>: Splenic pulp pressure gives a measure of the poal vein pressure, it can be measured by inseing a needle percutaneously Poal vein Doppler study is the most useful Non-invasive investigation for assessing thrombosis of the main poal vein branches Ref: Sabiston 20th edition 