A noninvasive method of assessing cerebral arterial compliance (AC) is introduced in which arterial spin labeling (ASL) is used to measure changes in arterial blood volume (aBV) occurring within the cardiac cycle. Short inversion time pulsed ASL (PASL) was performed in healthy volunteers with inversion times ranging from 250 to 850 ms. A model of the arterial input function was used to obtain t...

Objective(s): Carthamus tinctorius L. (CT) or saffloweris widely used in traditional Chinese medicine. This study investigated the effects of CT extract (CTE) on ischemia–reperfusion (I/R) brain injury and elucidated the underlying mechanism. Materials and Methods: The I/R model was conducted by occlusion of both common carotid arteries and right middle cerebral artery for 90 min followed by 24...

ABST RACT This study was aimed at determining the vascular structure of the brain base arteries in the sparrowhawk. For this purpose, ten hawks were used. Latex injection method was applied to the materials. After careful dissection, the brain base arteries were investigated. The right and left internal carotid arteries were present in all of the samples. The cerebral carotid arteries were loca...

A 62 year-old man with known coronary artery disease underwent a three-vessel CABG after a positive exercise tolerance test revealed reversible ischemic changes. Transcranial Doppler ultrasonography (TCD) and transesophageal monitoring (TEE) were used intraoperatively for monitoring of highintensity transient signals (HITS), representing both gaseous and particulate cerebral emboli. Non-pulsati...

WATERSHED INFARCTS are ischemic lesions which are situated along the border zones between the territories of two major arteries, for example the anterior and middle or the middle and posterior cerebral arteries (fig. 1). They may also be located between the territories of the major cerebellar arteries and they have even been described between the territories of the small arteries in the basal g...

Rathke's cleft cyst (RCC) apoplexy is a rare clinical entity. We report a case of apoplexy of an RCC followed by cerebral infarction. A 67-year-old woman was found lying on the street unconscious. She had fallen from her motorbike. On referral to our hospital she gradually regained consciousness and presented with no neurological deficits. CT showed a round and slightly hyperdense area in the s...

Cerebral Atherosclerosis in Japanese. I. Age Related to A therosclerosis • During a period of approximately two years (1965 through 1966), 717 intracranial cerebral arteries (males and females) were obtained from the medicolegal autopsy cases. Systematic grading of the macroscopic severity of cerebral atherosclerosis was performed and the results were reported. In general, cerebral atherosclero...

Doppler analysis of flow in intracranial arteries is now possible using a 2 MHz probe allowing sufficient penetration of bone to obtain signals noninvasively. Thirty-two normal subjects, and 11 patients with cerebrovascular diseases including vasospasm following subarachnoid hemorrhage, middle cerebral artery stenosis, and extracranial internal carotid artery stenosis were studied by transcrani...

BACKGROUND AND PURPOSE We assessed the ability of poststroke captopril and losartan treatment to reverse myogenic and endothelial dysfunction in the middle cerebral arteries of Kyoto-Wistar stroke-prone spontaneously hypertensive rats (SHRsp) that developed intracerebral hemorrhagic stroke. METHODS SHRsp were sampled before and after stroke development and after up to 37 days of captopril (50...

Weights of matching right and left middle or posterior cerebral arteries and their main branches from the same animal were compared 8-10 weeks after unilateral denervation by superior cervical ganglionectomy. When compared in pairs, the denervated arterial systems weighed significantly less (mean 85%) than their innervated counterparts. This suggests that the sympathetic innervation exerts a tr...