acute stroke imaging is generally performed in significant symptoms of new onset.It is important to differentiate the symptoms caused by a stroke from those caused by syncope (fainting) which is also a reduction in cerebral blood flow, almost always generalized, but they are usually caused by systemic hypotension of various origins: cardiac arrhythmias, myocardial infarction, hemorrhagic shock, among others. Treatment
Treatment for cerebrovascular disease may include medication, lifestyle changes, and surgery, depending on the cause.Examples of medications are:

antiplatelets (aspirin, clopidogrel)
blood thinners (heparin, warfarin)
antihypertensives:
ACE inhibitors
beta blockers
calcium channel blockers - in particular Nimodipine reduces the incidence and severity of ischemic deficits in patients with subarachnoid hemorrhage (SAH)
anti-diabetic medications.Surgical procedures include:

endovascular surgery and vascular surgery (for future stroke prevention). Prognosis
Prognostics factors:
Lower Glasgow Coma Scale score, higher pulse rate, higher respiratory rate and lower arterial oxygen saturation level is prognostic features of in-hospital mortality rate in acute ischemic stroke. Epidemiology
Worldwide, it is estimated there are 31 million stroke survivors, though about 6 million deaths were due to cerebrovascular disease (2nd most common cause of death in the world and 6th most common cause of disability).Cerebrovascular disease primarily occurs with advanced age; the risk for developing it goes up significantly after 65 years of age. CVD tends to occur earlier than Alzheimers Disease (which is rare before the age of 80). In some countries such as Japan, CVD is more common than AD.In 2012, 6.4 million adults from the US had a stroke, which corresponds to 2.7% of the US.
Cerebrovascular disease includes a variety of medical conditions that affect the blood vessels of the brain and the cerebral circulation. Arteries supplying oxygen and nutrients to the brain are often damaged or deformed in these disorders. The most common presentation of cerebrovascular disease is an ischemic stroke or mini-stroke and sometimes a hemorrhagic stroke. Hypertension (high blood pressure) is the most important contributing risk factor for stroke and cerebrovascular diseases as it can change the structure of blood vessels and result in atherosclerosis. Atherosclerosis narrows blood vessels in the brain, resulting in decreased cerebral perfusion. Other risk factors that contribute to stroke include smoking and diabetes. Narrowed cerebral arteries can lead to ischemic stroke, but continually elevated blood pressure can also cause tearing of vessels, leading to a hemorrhagic stroke.A stroke usually presents with an abrupt onset of a neurologic deficit – such as hemiplegia (one-sided weakness), numbness, aphasia (language impairment), or ataxia (loss of coordination) – attributable to a focal vascular lesion. The neurologic symptoms manifest within seconds because neurons need a continual supply of nutrients, including glucose and oxygen, that are provided by the blood. Therefore, if blood supply to the brain is impeded, injury and energy failure is rapid.Besides hypertension, there are also many less common causes of cerebrovascular disease, including those that are congenital or idiopathic and include CADASIL, aneurysms, amyloid angiopathy, arteriovenous malformations, fistulas, and arterial dissections. Many of these diseases can be asymptomatic until an acute event, such as a stroke, occurs.