Intraluminal measurement of enteric mucosal perfusion: Relationship to superior mesenteric artery flow during basal and postprandial states in the dog

Background. Several in vivo techniques that assess mucosal perfusion by antraluminal probes have recently been developed and valadated, ancluding laser Doppler flowmetry, reflectance spectrophotometry, and tonometry. Methods. With these techniques, a canine model where the entire vascular supply to the jejunoileum was isolated as the superior mesenteric artery and vein was used to examine the relationship between enteric mucosal blood perfusion anf adjusted decrements an arterial flow under fasting and postprandial conditions