Association Between CT Angiogram Collaterals and CT Perfusion in Delayed Time Windows for Large Vessel Occlusion Ischemic Strokes

Voleti, Sriharsha; Aziz, Yasmin; Vidovich, Johnathan; Corcoran, Brendan; Zhang, Bin; Mistry, Eva; Khandwala, Vivek; Khatri, Pooja; Tomsick, Thomas A.; Wang, Lily; Mahammedi, Abdelkader; Vagal, Achala

doi:10.1016/j.jstrokecerebrovasdis.2021.106263

Cited by 8 publications

(2 citation statements)

References 30 publications

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“…93 When considering specifically patients in the late time window (6-24 hours since symptom onset), better collaterals are significantly associated with smaller CTP core, smaller penumbra, larger mismatch ratio, lower HI, and better functional outcomes. 92,94…”

Section: Prognosis In Endovascular Thrombectomymentioning

confidence: 99%

Collateral Circulation in Ischemic Stroke: An Updated Review

Maguida

Shuaib

2023

J Stroke

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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 understanding of this complex vascular bypass system has advanced greatly in the past few years, yet effective treatments for its potentiation as a therapeutic target remain a challenge. The assessment of the collateral circulation is now part of the routine neuroimaging protocols for acute ischemic stroke, which provides a more complete pathophysiological picture in each patient that allows for a better selection for acute reperfusion therapies and a more accurate prognostication of outcomes, among other potential uses. In this review, we aim to provide a structured and updated approach to the collateral circulation while highlighting ongoing research areas with promising future clinical applications.

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Section: Prognosis In Endovascular Thrombectomymentioning

confidence: 99%

Collateral Circulation in Ischemic Stroke: An Updated Review

Maguida

Shuaib

2023

J Stroke

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“…When CTP is paired with CTA data, it can enhance the functional and anatomical variations in collateral circulation, contributing to a more thorough and precise assessment. [ 50 51 ] Voleti et al .’s research[ 52 ] found that a smaller CTP core, a smaller penumbra, a greater mismatch, and a lower perfusion intensity ratio are all necessary to get a high Tan score (sCTA) in patients with major artery blockage that occurs during the delayed time frame (6–24 h). It is anticipated that collateral circulation evaluation with sCTA may prove to be a useful substitute for CTP, particularly in stroke centers where CTP cannot be implemented.…”

Section: Clinical Value Of Enhancing Single-phase Computed Tomography...mentioning

confidence: 99%

Enhancing the clinical value of single-phase computed tomography angiography in the assessment of collateral circulation in acute ischemic stroke: A narrative review

Yang,

Wang,

et al. 2024

Brain Circulation

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Acute ischemic stroke (AIS) condition assessment and clinical prognosis are significantly influenced by the compensatory state of cerebral collateral circulation. A standard clinical test known as single-phase computed tomography angiography (sCTA) is useful for quickly and accurately assessing the creation or opening of cerebral collateral circulation, which is crucial for the diagnosis and treatment of AIS. To improve the clinical application of sCTA in the clinical assessment of collateral circulation, we examine the present use of sCTA in AIS in this work.

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