| 词汇 | perfusion |
| 释义 | perfusion noun[ U ] medical specializeduk /pəˈfjuː.ʒən/ us /pɚˈfjuː.ʒən/ the act of pouring a liquid over or through the tissue of a particular organ: 灌注 Perfusion of an organ during transplant can improve the outcome of the operation.在器官移植期间对其进行灌注可改善手术效果。 Examples of perfusionperfusion A further study, therefore, is planned to reassess these children, after an interval, with myocardial perfusion scans and exercise testing. Hearts were removed after perfusion with physiological saline, and transferred to the same solution for dissection. Even with the most advanced components, the volume required to prime the perfusion circuit is typically more than twice the blood volume of a neonate. Any factor which decreases either cardiac output or peripheral vascular resistance diminishes systemic arterial pressure and hence cerebral perfusion. Each group of mice was assayed for early phase attrition by skin or skin and lung recovery; and for late phase attrition by liver perfusion. X 103 recovered from the tissues of mice at the time of perfusion. After perfusion the intestinal mesenteries were examined for residual worms under a light microscope. In preeclampsia, an inadequate placental trophoblast invasion of the maternal uterine spiral arteries results in poor placental perfusion, leading to placental ischaemia. By this standard, cerebral bloodflowat the end of cooling is clearly excessive in all groups, and perfusion during rewarming is probably slightly excessive. Cerebral blood flow decreased slightly from 30 to 120 minutes of non-pulsatile perfusion at low rates of flow. This complexity is augmented by the fact that octopamine accelerations were readily demonstrated in perfusion work but not in infusion work. Wandering inversions of venous flow were observed in bridging veins between neighboring systems of drainage during low-flow perfusion. The liver and lungs of rodents, which were found to be infected during perfusion, were also examined for the presence of schistosomes. These observations, showing pathological differences from normal homogenous tissue perfusion, all suggest the occurrence and gradual increment of scattered ischemic micro-foci. After perfusion, the eyes were removed and the retinas dissected free from the other ocular layers in the same fixative. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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