H14. Cerebral Circulation and Metabolism in Brain Tumors

Cerebral circulation and metabolism in uremia.

Data on 16 patients with uremia are presented. The cerebral blood flow was moderately decreased in patients with generalized vascular disease, but was normal in patients with minimal vascular involvement. In both groups the cerebral oxygen consumption (cerebral metabolic rate in terms of oxygen consumption, CAIRO,) was reduced significantly and to the same degree. In contrast, total body metabo...

Brain circulation in cerebral transient ischemic attacks.

Cranial blood flow, mean cranial transit time and cranial blood volume were measured by the intravenous RISA technique in 10 patients with cerebral transient ischemic attacks (TIA) at the various time intervals from the onset of last attack. Cranial blood flow was subnormal in 5 out of 11 determinations and mean transit time trended to be prolonged in the diseased hemisphere in cases suggestive...

Biopotentials of Cerebral Hemispheres in Brain Tumors

The elucidation of the detailed chemical mechanisms involved in biological, and particularly in enzymatic, processes has received considerable attention in recent years. Increasingly, the theories and methods of physical organic chemistry are being applied to this problem. Kosower has attempted to review the advances made in this field, as well as to suggest areas of biochemistry which should p...

Effects of aging on cerebral circulation and metabolism.

5 Brain metabolism and cerebral blood flow

Cerebral blood flow is influenced and regulated by a number of factors, including arterial blood pressure, intracranial pressure, venous outflow, blood viscosity, PaCO2 and PaO2, collateral flow, vasoreactivity and the status of cerebral autoregulation. The regulation of vascular resistance lies mainly in the arterioles and precapillary segments (Auer and Loew, 1983). It is important to note th...