Anatomy
Normal diameter for the aorta
<3 cm
What does the SMA supply blood to
Small intestines, ascending colon, transverse colon
What should the patient do to prep for a mesenteric doppler study
NPO for 6-8 hrs
What causes acute mesenteric ischemia
External compression, thrombus, embolus
What vessels coarses just anterior and parallel to the aorta
SMA
15-30
Reason why a mesentric doppler is done
aneurysms, dissections, ischemia, compression
What makes it chronic mesenteric ischemia
1-2 splanchic arteries are occluded
What are the three Splanchnic vessels
SMA, IMA, Celiac axis
SMA post prandial EDV
Doubles
Clinical indication for a mesenteric doppler
Abdominal pain and cramping associated with eating
Who is mesenteric ischemia most commonly found in
Women, 60-70 yrs old
What three vessels make up the celiac axis
Hepatic artery, gastric artery, splenic artery
SMA while fasting
High resistive
What transducer is used
3-6 mHz curved array
What pathology is when the celiac artery is entrapped upon expiration
Median arcuate ligament syndrome
If you see an aorta with turbulent flow and a diameter >3cm what do you think is the problem
SMA post prandial
Low resistive
What changes will be seen post prandial
EDV increase in SMA, changes to low resistive
What pathology is when the duodenum is compressed between the SMA and Aorta
Superior mesenteric artery syndrome