In one patient with a history of drug abuse (amphetamine), all the major cerebral arteries
were very narrow and the transit time of the dye was delayed.
The TCD pressures of the anterior cerebral arteries
were difficult to obtain probably due to severe spasm.
The posterior cerebral arteries
supply the occipital lobes, medial and inferior surfaces of the temporal lobes, midbrain, and choroid plexuses of the third and lateral ventricles.
In addition, Doppler ultrasonography examination demonstrates increased quantity and size of atherosclerotic plaques in cerebral arteries
3) The two anterior cerebral arteries
frequently differ in size at their origin and the larger one reinforces the other through anterior communicating artery.
Involvement of the vertebrobasilar system is uncommon,18 although occasionally extensive infarctions in the distribution of both posterior cerebral arteries
or small brainstem lesions may be observed.
Starting at week 12 of a high (2%) CHS diet, de-endothelized mesenteric arteries of different diameter (1000-1500, 500-1000, 250-500, and < 250 [micro]m), and cerebral arteries
were obtained every 2 weeks for CHS determination.
With respect to specific effects on vascular function, we have previously shown that 17-[beta]-estradiol, three phytoestrogens (biochanin A, daidzein and genistein) and a mycoestrogen (zearalanone) induce relaxation of isolated cerebral arteries
due to inhibition of extracelular [Ca.
Moyamoya disease is characterized by a slowly progressive stenosis and obliteration of the large vessels at the base of the brain, affecting mainly the supraclinoid segment of the internal carotid artery and the initial portion of the anterior or middle cerebral arteries
and the posterior cerebral arteries
Successful recanalization was defined as final Thrombolysis in Myocardial Infarction (TIMI) grade 2 or 3 flow in all treatable vessels (internal carotid artery, terminus of the internal carotid artery, and middle cerebral arteries
1 and 2).
One to three medium cerebral arteries
originating from the internal carotid artery rostral branch were observed by the present study.
For example, ischemic strokes due to atheromas in the large cerebral arteries
occurred significantly more often during periods of high pressure and high relative humidity So did ischemic strokes attributed to embolic heart disease, according to Dr.