Cerebrovascular Accidents
Cerebrovascular Accidents - Related Videos
08:00
Imaging and 3D Reconstruction of Cerebrovascular Structures in Embryonic Zebrafish
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Cited by 1 •
2014
Imaging of cerebrovascular development in larval zebrafish is described. Techniques to facilitate 3D imaging and modify cerebrovascular development using chemical treatments are also provided.
06:42
Cerebrovascular Casting of the Adult Mouse for 3D Imaging and Morphological Analysis
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Cited by 29 •
2011
In this article, we present a simple, practical technique for cerebrovascular casting that is easy to perform and can be utilized to image the vascular tree of the adult mouse brain.
09:33
MRI Mapping of Cerebrovascular Reactivity via Gas Inhalation Challenges
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Cited by 79 •
2014
Non-invasive imaging of the brain vasculature’s ability to dilate or constrict may allow a better understanding of cerebrovascular pathophysiology in various neurological diseases. The present report describes a reproducible and patient-comfortable protocol to perform vascular reactivity imaging in humans using magnetic resonance imaging (MRI).
07:30
Evaluation of the Cognitive Performance of Hypertensive Patients with Silent Cerebrovascular Lesions
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Cited by 3 •
2021
Here, we present a protocol to assess whether various types of silent cerebrovascular lesions are differentially associated with deficits in certain cognitive domains in a cohort of 398 hypertensive elderly Chinese, using a combination of neuropsychological tests and multi-sequence 3T MRI scanning.
04:29
A Visual Approach for Inducing Dolichoectasia in Mice to Model Large Vessel-Mediated Cerebrovascular Dysfunction
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Cited by 2 •
2024
We demonstrate chemically inducing large blood vessel dilatation in mice as a model for investigating cerebrovascular dysfunction, which can be used for vascular dementia and Alzheimer's disease modeling. We also demonstrate visualizing the vasculature by injecting silicone rubber compound and providing clear visual guidance for measuring changes in blood vessel size.
FAQs
Both can obstruct an artery, but they represent different sources of blockage. A thrombus forms within the affected vessel, whereas an embolus travels through the circulation before becoming lodged. In either case, downstream brain tissue receives less oxygen and glucose. This energy shortage disrupts neuronal function and helps explain the sudden neurological changes associated with ischemic events.
Neurons depend on a continuous supply of oxygen and glucose to support brain function. When an arterial blockage interrupts that delivery, affected tissue cannot maintain normal activity. The resulting disturbance can impair neurological processes and behavior. Studying this link connects vascular obstruction with the functional consequences observed after a cerebrovascular accident, including acute neurological impairment.
Vessel rupture causes blood to accumulate where it should not, producing more than a simple loss of normal circulation. The bleeding can generate pressure-related injury within the brain, which adds mechanical stress to nearby tissue. This mechanism distinguishes hemorrhagic events from blockage-driven injury and makes both the location of bleeding and its effects important biological considerations.
The neurovascular system links cerebral blood vessels with the neural tissue they support. Its biology helps explain why vascular damage can rapidly affect brain function and behavior. Cerebrovascular accidents therefore provide a model for examining how circulation and neural activity depend on one another, while also showing how damage to vessels can produce consequences beyond the vessel itself.
Investigation focuses on rapid diagnosis, with the immediate goal of distinguishing an event caused by blocked circulation from one caused by bleeding. Management then depends on that distinction: treatment may aim to restore circulation in ischemic cases or limit bleeding in hemorrhagic cases. These steps connect biological classification with time-sensitive decisions about tissue injury and recovery.
Research examines factors that increase the likelihood of vascular injury, along with the neurological and behavioral outcomes that follow an event. It also evaluates treatments designed to restore circulation or limit bleeding and studies rehabilitation strategies that support recovery. Together, these areas connect prevention, acute care, and longer-term functional improvement within biology and medicine.