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  • arteries
  • There are four mechanisms by which poor blood flow occurs: a blood clot from elsewhere getting lodged in an artery , a new blood clot forming in an artery , a blood clot forming in the superior mesenteric vein , and insufficient blood flow due to low blood pressure or spasms of arteries . (wikipedia.org)
  • artery
  • Thrombolytic agents can be introduced either via a superior mesenteric artery catheter or a transhepatic transportal retrograde approach, whereas mechanic clot lysis can only be achieved via a retrograde transhepatic venous approach 2 . (radiopaedia.org)