Vascular ARDMS 2023/2024 Exam Graded A+

average velocity of the aorta - ANSWER-60-100 cm/s what aortic pathologies affect the branches - ANSWER-stenosis, aneurysm, plaque what are the normal waveforms of the proximal aorta - ANSWER-low resistance flow pattern with continuous forward diastolic flow by the liver spleen, and kidneys (similar to ICA waveform) normal waveforms for distal aorta - ANSWER-higher resistance flow pattern what causes the distal aorta to be more high resistive - ANSWER-peripheral resistance and due to the triphasic nature of the aortic branches (reversal during diastole) why is the proximal aorta more high low resistive - ANSWER-the highly metabolic organs of the abdomen need forward flow in systole and diastole whats the most superior brach of the aorta arising from the anterior surface - ANSWER-celiac artery where to 95% of celiac arteries bif - ANSWER-1-3 cm from origin what does the eliac artery bif into - ANSWER-common hepatic, splenic, and left gastric which pane is the celiac best seen in - ANSWER-transverse what is the normal waveform for the celiac - ANSWER-low resistance flow due to the vascular beds of the liver and spleen with continuous forward flow during diastole what happens if the celiac occludes - ANSWER-collateralization throught the pancreaticoduodenal arterial arcade-network of small vessels surrounding the pancreas and duodenum (feed into duodenum then into the common hepatic) how does the splenic artery run - ANSWER-it follows a tortuous course long the posterior, superior pancreatic body and tail with several pancreatic and gastric branches where does the splenic artery originate - ANSWER-it is a branch off of the celiac axis where does the splenic artery terminate - ANSWER-ends as branches in the splenic hilum