Cerebral hemodynamics in symptomatic anterior circulation intracranial stenosis measured by angiography-based quantitative flow ratio: association with CT perfusion. - Suo, Shiteng; Zhao, Zichen; Zhao, Huilin; Zhang, Jin; Zhao, Bing; Xu, Jianrong; Zhou, Yan; Tu, Shengxian (European Radiology, 2023)