Magnetic resonance perfusion imaging of arterial spin labeling(ASL) is a non-invasive technique to quantificationally measure the blood flow using the labeling arterial blood as a tracer.

• 磁共振动脉血质子自旋标记(ASL)灌注成像是将动脉血作为内源性示踪剂、无创性的观测血流灌注情况的磁共振检查技术,可以提供相应血流动力学方面的信息。