1. 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。
2. Magnetic resonance perfusion imaging of arterial spin labeling is a technique to quantificationally measure the cerebral blood flow using the labeling arterial blood as a endogenous tracer. 磁共振动脉自旋标记灌注成像技术是通过对动脉血作磁标记作为内源性对比剂，对脑组织的血流灌注进行定量测量的磁共振成像技术。
3. 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。
4. Arterial compliance is an intrinsic property of vessel walls. A decrease in arterial compliance is an early change in the development and progression of vascular disease. 动脉顺应性是动脉血管壁的内在弹性特性，顺应性的降低为血管性疾病发生、发展的早期表现。
5. We quantified the decline in mean arterial pressure by calculating an area above the mean arterial blood pressure curve. 我们通过计算平均动脉压曲线上部一部分的区域的面积来定量平均动脉压的下降。
