A method is described for multislice EPISTAR that perfectly compensates magnetization transfer effects. Inflowing arterial spins are labeled with a 360 degrees adiabatic pulse. Two control tags are applied sequentially at the same location as the labeling pulse, each with a 180 degrees adiabatic pulse so the total RF irradiation, frequency shift, and bandwidth of the labeling and control pulses...

SUMMARY We applied regional perfusion imaging (RPI), a new arterial spin-labeling MR imaging method that selectively studies regions of the brain perfused by individual carotid and basilar arteries. In a patient with cerebrovascular disease, RPI showed cerebral tissue perfused by pial collateral vessels, thereby demonstrating the relationship between anatomic and functional information, which w...

background chlamydia pneumoniae has been linked with increased risk of cardiovascular diseases; however, data on stroke and cerebrovascular accidents are sparse. objectives the aim of this study was to determine the association between c. pneumoniae infection and ischemic stroke. patients and methods in a case-control study, 141 patients, admitted with ischemic stroke, were compared with gender...

Bilateral Reduction of Hemispheric Blood Flow in Patients With Unilateral Cerebral Infarction • Bilateral hemispheric blood flow was determined by the intravenous RISA technique in patients with unilateral cerebral infarction. Of all 29 patients, bilateral reduction of cerebral blood flow (CBF) was demonstrated in 13, of whom hemispheric vascular resistance was significantly increased and arm-t...

Melatonin, widely used to counter transatlantic travel jet lag and insomnia, is synthesized in the suprachiasmatic nucleus of the anterior pituitary gland. Its release into the circulation is stimulated by the onset of darkness, followed by a progressive decrease in blood levels with the onset of dawn. Melatonin administration can maintain the quality of sleep and help to counteract age-induced...

Skin temperatures were recorded from the medial upper orbital area and above the nasal, mid and lateral portions of the brows in normal subjects and in patients with suspected cerebrovascular disease. Temperatures were reduced across the brow in patients with external carotid artery disease. Temperatures were lower than normal in the orbit in patients with internal carotid artery disease except...

Skin temperatures were recorded from the medial upper orbital area and above the nasal, mid and lateral portions of the brows in normal subjects and in patients with suspected cerebrovascular disease. Temperatures were reduced across the brow in patients with external carotid artery disease. Temperatures were lower than normal in the orbit in patients with internal carotid artery disease except...

The issue of cerebral vascular pathology is one the most important social problems in modern world, and Russia no exception. Cerebrovascular diseases are distinguished by high prevalence, mortality disability rates. They great importance from a health perspective not only each individual, but total nation. Acute or chronic disorders circulation naturally results atherosclerosis major arteries h...

The management of acute “brain attack” is in evolution. A proliferation of new treatment approaches directed at lysing thrombus, normalizing cerebral perfusion, and reversing or minimizing neuronal ischemic damage are recently approved or currently under investigation. Preservation of “tissue at risk” within the ischemic penumbra is the goal of many of these newer therapies. The ischemic penumb...