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13 de mar. de 2023 · The collateral circulation plays a crucial role in maintaining perfusion to brain tissue in ischemic stroke, which prolongs the time window for effective therapies to be provided and ultimately avoids irreversible damage that may lead to worse clinical outcomes.
The cerebral collateral circulation refers to the subsidiary network of vascular channels that stabilize cerebral blood flow when principal conduits fail. Arterial insufficiency due to thromboembolism, hemodynamic compromise, or a combination of these factors may lead to the recruitment of collaterals.
30 de may. de 2018 · Good collateral circulation could enhance the benefit of endovascular treatment in acute ischaemic stroke and reduce the risk of relevant haemorrhagic transformation 1–3 ; significantly reduce the risk of recurrent stroke in patients with symptomatic intracranial atherosclerotic stenosis (ICAS) 4; and reduce the quantities and volume of infarcti...
1 de ago. de 2018 · Arterial spin labeling (ASL) is a noncontrast perfusion imaging method to measure cerebral blood flow that relies on the magnetic labeling of arterial water. ASL is a promising technique for the assessment of collateral flow that can provide various types of information about collateral status.
1 de mar. de 2020 · Collateral circulation comprises of robust anastomotic cerebral vessels that are beneficial in stroke. Varied rapid non-invasive diagnostic techniques have loomed recently that are rife with cogent details about structural and functional constituents regarding this circulation.
The collateral circulation provides the most immediate source of protection against ischemic brain damage in case of acute stroke, by allowing continued perfusion to the area distal to an occluded intracranial artery through alternative routes. 1 Adequate collateral flow contributes to the viability of brain tissue in the affected vascular terri...
20 de jul. de 2023 · Abstract. Cerebral collateral circulation is a network of blood vessels which stabilizes blood flow and maintains cerebral perfusion whenever the main arteries fail to provide an adequate blood supply, as happens in ischemic stroke. These arterial networks are able to divert blood flow to hypoperfused cerebral areas.
