Division of Neuroradiology, Mayo Clinic, 200 First St. SW, 55905 Rochester, MN, United States.
J Neuroradiol. 2018 Sep;45(5):276-289. doi: 10.1016/j.neurad.2018.06.003. Epub 2018 Jul 27.
Arterial spin labeling (ASL) is a magnetic resonance imaging perfusion technique that enables quantification of cerebral blood flow (CBF) without the use of intravenous gadolinium contrast. An understanding of the technical basis of ASL and physiologic variations in perfusion are important for recognizing normal variants and artifacts. Pathologic variations in perfusion can be seen in a number of disorders including acute and chronic ischemia, vasculopathy, vascular malformations, tumors, trauma, infection/inflammation, epilepsy and dementia.
动脉自旋标记（ASL）是一种磁共振成像灌注技术，可在不使用静脉内钆对比剂的情况下定量脑血流（CBF）。了解 ASL 的技术基础和灌注中的生理变化对于识别正常变异和伪影很重要。灌注中的病理变化可见于多种疾病，包括急性和慢性缺血、血管病、血管畸形、肿瘤、创伤、感染/炎症、癫痫和痴呆。
