Transcutaneous Doppler ultrasound measurement of superior mesenteric artery blood flow in man.

Abstract

SUMMARY A duplex scanner which consists of a real time two dimensional scanner and a pulsed Doppler flowmeter was used to measure superior mesenteric blood flow in 70 healthy subjects. By processing the Doppler shift signals, the instantaneous average Doppler shift frequency and then the instantaneous average velocity of the flow rate were calculated. Both diameter of the vessel and angle between vessel and beam were measured from real time imaging. The mean (+ standard error of the mean) of the superior mesenteric blood flow was 517±19 ml/min. There was neither significant difference in flow between sexes, nor correlation between flow and age (r=0.042). The mean of coefficients of variability were 6-8% over the short term, and 8.2% in long term studies.The superior mesenteric artery supplies blood to the duodenum -except for its superior portion -and also to the whole of the small bowel and the right half of the colon. Little information is available concerning superior mesenteric artery blood flow (SMABF)

Endogenous insulin and insulin sensitivity. An important determinant of skeletal muscle blood flow in chronic heart failure?

“…Blood flows in the superior mesenteric artery [12,13] and the right renal artery [14] were measured by transcutaneous Doppler ultrasound using a 3·5 kHz curvilinear ultrasound probe (Sonotron, Santa Clara, California, U.S.A.). The vessels were identified by ultrasound and the sample volume of the pulsed Doppler system was adjusted to the size of the vessel being interrogated.…”

Splanchnic tissue oxygenation, but not brain tissue oxygenation, increases after feeds in stable preterm neonates tolerating full bolus orogastric feeding

“…[1][2][3][4][5] Several reports have shown that enteral feeding induces a significant and progressive increase in blood flow velocity in the superior mesenteric artery that peaks 45-60 min after the meal. [6][7][8][9][10][11][12] The effect of feeding increases with the volume of milk and the interval between feedings.…”

A study concerning morphometry of abdominal aorta branches and abdominal viscera: relations and correlation

“…Superior mesenteric artery diameter increases with a number of stimuli, including meal [37,76,90] and decreases with exercise [77], cold stimuli [81] and hypovolaemia [74]. Also SMA diameter increases in diseases with enteric manifestation [24], including Crohn's colitis [54,70] and celiac disease [1].…”

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