Perfusion

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perfusion

[pər′fyü·zhən]
(physiology)
The pumping of a fluid through a tissue or organ by way of an artery.

Perfusion

 

a method of passing physiological solutions, blood, blood substitutes, or other fluids through the blood vessels of an organ, a part of the body, or the entire body. Perfusion may be performed on organs completely removed from the body or on organs within the body but isolated from the general vascular system. Widely used in experimental physiology, it permits preservation of the vital activities of organs for a certain period, enabling the study of organ functions and of the effect of hormones, mediators, enzymes, and medicinal substances on physiological systems and the entire body. The method is used in various branches of surgery, including transplantation of organs and tissues. Perfusion of the entire body is used, for example, during heart surgery.

The term “perfusion” also designates the supplying of blood to organs of the body under natural conditions (for example, perfusion of the kidneys, brain, or other organs), which is determined by the state of cardiac activity and local vascular tonus.

References in periodicals archive ?
The role of human perfusion techniques in the assessment of oral rehydration solutions.
When acquisitions are acquired using current stress and rest perfusion techniques, moderate to high sensitivity (84-100%) and specificity (80-100%) can be achieved for the detection of hemodynamically significant (> 70% stenosis) coronary artery lesions.
Additional topics include ultrafiltration in cardiac surgery, pediatric perfusion techniques and blood flow during bypass.
The company says KPS-1 is an essential component of its kidney recovery system that uses proprietary machine perfusion techniques for organ evaluation and therapy.
The second section is centered on clinical imaging and the application of perfusion techniques to multiple clinical presentations, such as acute stroke, chronic stroke, infectious processes, intracranial tumors and more.