Summary 19. mesenteric arteries (vascular ultrasound)

The Mesenteric ArteriesAnatomy• cephalic artery is first abdominal branch arising from abdominal aortabranches into common hepatic & splenic arteryshort, 2-4cmSMA originates from below celiac arteryVariants1.rt hepatic artery originates from another artery than the celiacreplaced hepatic arterymost common anomalylow resistance flow in normal looking SMA proxnormal flow SMA distal• common hepatic artery originating from SMA• common hepatic artery originating from aortaalso celiac artery and SMAfrom the aortaSonographic Techniques• patient fast for 6 hours is essentiallow flow, high resistancehigh flow, low resistance (after eating)• slight reverse trendelenburg positionlow frq 2-5MHzScanning• identify abdominal aortasag & trv walk throughpulse wave, spectral wave recordedaorta, celiac, common hepatic, splenic, SMA, IMA arteries