Search results
Results from the WOW.Com Content Network
Cerebral infarction, also known as an ischemic stroke, is the pathologic process that results in an area of necrotic tissue in the brain (cerebral infarct). [1] In mid to high income countries, a stroke is the main reason for disability among people and the 2nd cause of death. [2]
The most common presentation of cerebrovascular disease is an ischemic stroke or mini-stroke and sometimes a hemorrhagic stroke. [2] 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 . [ 5 ]
Hemorrhagic transformation is a process which involves the bleeding of brain tissue that has been affected by the stroke and can take two forms: petechial hemorrhage and parenchymal hemorrhage. [1] HT can lead to further damage to the brain tissue and worsen the outcome of the initial stroke.
CT Perfusion plays an important role in the assessment of Acute Ischemic Stroke. It is used to create maps of blood flow, blood volume, and mean transit time to assess the tissue and to differentiate between the core and penumbra in stroke. [3]
Embolic stroke of undetermined source (ESUS) is an embolic stroke, a type of ischemic stroke, with an unknown origin, [1] defined as a non-lacunar brain infarct without proximal arterial stenosis or cardioembolic sources. [2] As such, it forms a subset of cryptogenic stroke, which is part of the TOAST-classification. [3]
An ischemic stroke's main cause is atherosclerosis. [2] Stroke is commonly caused by atherosclerotic large vessel disease and results from local branch occlusion by plaque, artery-to-artery embolism, or in situ thrombosis, with the latter being the most common cause of anterior cerebral artery infarction. [4]
Fogging phenomenon in computerized tomography (CT) scanning of the head is vanishing signs of an infarct on the serial CT imaging in a patient with a recent stroke. [1] It is a reversal of the hypodensity on the CT after an acute ischemic stroke.
He primarily used positron emission tomography (PET) in the study of cerebrovascular diseases, using it in conjunction with other techniques such as CT, MR, and SPECT to investigate the pathophysiology of transient ischemic attacks (TIAs) and acute ischemic stroke, as well as the mechanisms underlying post-stroke recovery, in both patients and ...