Pulsatile portal venous flow
A pulsatile portal venous flow pattern can result from both physiological and pathological causes.
Usually mild pulsatility or in rare situations even marked pulsatilility has been described, particularly in thin subjects with a venous pulsatility index of >0.5 with an inverse correlation to body mass. Decreased pulsatility has been observed when the patient is sitting and during deep inspiration, and in obese subjects. It has been suggested that abdominal pressure is the common factor affecting portal vein pulsatility in these subjects 1.
- 1. Görg C, Riera-knorrenschild J, Dietrich J. Pictorial review: Colour Doppler ultrasound flow patterns in the portal venous system. Br J Radiol. 2002;75 (899): 919-29. Br J Radiol (citation) - Pubmed citation
- 2. Abu-yousef MM, Milam SG, Farner RM. Pulsatile portal vein flow: a sign of tricuspid regurgitation on duplex Doppler sonography. AJR Am J Roentgenol. 1990;155 (4): 785-8. AJR Am J Roentgenol (citation) - Pubmed citation
- 3. Wachsberg RH, Needleman L, Wilson DJ. Portal vein pulsatility in normal and cirrhotic adults without cardiac disease. J Clin Ultrasound. 1995;23 (1): 3-15. Pubmed citation