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Blood vessels of abdomen and pelvis : Anatomy overview | Kenhub The liver, a functionalized vascular structure | Scientific Reports The IVCs job is to return blood to the heart from the lower half of the body, including the feet, legs, thighs, pelvis, and abdomen. In patients with pulmonary hypertension or congestive heart failure (CHF), pulmonary circulation can be slow and PTT will be prolonged, which may lead to delayed contrast arrival in the non target vessel, e.g. In normal subjects, this is about 6.81.7s [6]. Perfusion characteristics of the human hepatic microcirculation based on three-dimensional reconstructions and computational fluid dynamic analysis. Terms in this set (43) Blood flow away from the liver. Notice the large thrombus in the A-V malformation abutting the main pulmonary artery, Coronal reformat from a thoracic CTA in a 13-year-old patient with mid aortic syndrome demonstrates step ladder artifact in the pulmonary artery as well as descending aorta. The liver is one of the most important organ of the human body. In addition, there are some life-threatening findings, which unless sought for, may remain hidden in plain sight. View Michael P Hartung's current disclosures, see full revision history and disclosures, How to read a CT of the abdomen and pelvis, "How to Read an Abdominal CT" Chapter 2 Supplement, #14 Gastrointestinal tract. WebThe hepatic circulation is highly sensitive to changes in circulating blood volume and serves as a major buffer for expanded or contracted blood volume. Causes of splenomegaly are myriad, as are the read more . In the case of fluid flow networks it means that the minimum pumping power is found when the pressure losses are equally distributed over the flow architecture. Google Scholar, Department of Imaging Sciences, University of Rochester Medical Center, 601 Elmwood Ave, P.O. large respiratory effort, cardiac motion, and/or the patient physically shifting on the table), leading to premature, delayed or even no bolus triggering. Patient with cardiac arrest at the time of CTA for acute aortic syndrome. This means that in this configuration, the central vein would be connected to 4 radial branches of diameter dc and length Lc=2LS through which the mass flow rate is mh/4. What does it mean to say portal and hepatic veins are The portal vein and hepatic arteries form the liver's dual blood supply. Approximately 75% of hepatic blood flow is derived from the portal vein, while the remainder is from the hepatic arteries. [4] Unlike most veins, the portal vein does not drain into the heart.