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Vascular sonography

Test 4 Abdominal Doppler Anatomy Part 1

QuestionAnswer
With Abdominal Doppler what is evaluated? Abdominal Aorta, Mesenteric arteries, Renal arteries & veins, Portal venous system, IVC, and Heptaic veins
What do you evaluate when you look at Mesenteric arteries? Celiac axis, Heptaic artery, Splenic artery, and Superior mesenteric artery (SMA)
What do you evaluate when you look at the Portal venous system? Portal vein, superior mesenteric vein (SMV) and splenic vein
What are som reason for evaluation and Doppler interrogation of the abdominal structures? Aneurysms, Arterial Stenosis, Ischemia, HTN (portal or reno-vascular), Thrombosis, Budd-Chiari syndrome, TIPS evaluation, Graft evaluation, Transplant evaluation
What is the scanning technique with abdominal doppler? PT is NPO (not dehydrated), 2-5 MHz TD (may need probe pressure to displace bowel gas), Supine PT (May need LLD or RLD for renal eval),
With an arterial assessment what doppler angle should be used? 60 degree or less for Doppler interrogation
What should not be done with spectral waveform or color flow abdominal Doppler studies? DO NOT INVERT
Where does the Abdominal Aorta begin? At the level of the 12th thoracic vertebra (passes through the aortic hiatus)
What is the celiac artery? AKA the Celiac trunk/ Celiac axis, First major anterior branch of the aorta, Gives rise to the hepatic, splenic and left gastric arteries
What is the superior mesenteric artery (SMA)? Next anterior branch of aorta, Arises just below the celiac artery, and supplies most of the small intestine and some large intestine
What is the inferior mesenteric artery (IMA)? Last anterior branch of aorta, Arises 3-4 cm above aortic bifucation, and mainly supplies the large intestine
What are the renal arteries? Lateral branches of the aorta, Arise just below the SMA, Both R&L approach kidney posterior to renal veins
What is the difference between the Right and Left renal arteries? Right is longer and slightly higher than left, Right courses posterior to IVC
What are the renal vasculature arteries? Main renal artery (@ hilum), Segmental renal artery (renal sinus), Interlobar arteries, Arcuate arteries (renal cortex), Interlobar arteries
Where do the testicular or ovarian arteries arise? Just below the renal arteries, Anterolateral branches of the aorta
Where do the lumbar arteries arise? Posteriorly off the aorta
Where does the middle sacral artery arise from? Just above the aortic bifurcation, single artery arising off the posterior aorta
Where is the IVC? Courses through the abdomen to the right of the aorta.
What are the major tributaries of the IVC? Renal veins (R&L), Heptaic veins (R, middle &L), Lumbar veins, and Ovarian or testicular veins
The left ovarian or testicular vein typically drains into the what? Left renal vein
The hepatic artery carries ________ blood into the liver? OXYGENATED
Hepatic artery carries ____ of total blood flow into the liver? 30%
The portal vein carries the remaining ____ of blood into the liver? 70%
Where is the portal vein formed? At the junction of the splenic and Superior mesenteric veins (SMV)
Where does the portal vein begin? Posterior to the neck of the pancreas and anterior to the IVC
Hepatic veins (Left, middle, and right) drain from ____ into the ______? Drain from the liver into the IVC
Created by: EmilyGriffin