Evaluation of hemodynamic and geometric changes of intracranial atherosclerosis and follow-up is of great clinical significance. A comprehensive quantification of the whole collateral recruitment in the circle of Willis (CW) is needed. In this work, we combined High-resolution CS TOF-MRA and 4D Flow MRI to investigate the situation of collateral recruitment. We were able to demonstrate a new way to visual and quantify the cerebrovascular impact of a significant intracranial stenosis and the compensatory mechanism of the collaterals.
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Ma et al. (2024) studied this question.
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