结论流动液体模型证明磁共振相位对比技术是一种客观、准确的流体定量测量技术，可用于临床血流定量研究。
Conclusion Phase-contrast MR imaging is proved to be an accurate and practical flow measurement technique in flow phantom study and can be used in quantitative study of blood flow clinically.
目的：采用相位对比法磁共振成像(MRI)测量肺动脉血流量，探讨并评价两肺的血流灌注情况。
AIM: to measure the flow volume of pulmonary arteries by using phase contrast magnetic resonance imaging (MRI) and to investigate the values of phase contrast MRI in assessing pulmonary perfusion.
目的：通过建立适当的流体模型，评价磁共振相位对比电影法对流体定量测量的可行性及准确性。
Objective: to evaluate the feasibility and accuracy of MR phase-contrast cine technique in cerebral blood flow quantification by establish appropriate flow phantoms.
目的：通过建立适当的流体模型，评价磁共振相位对比电影法对流体定量测量的可行性及准确性。
Purpose: to evaluate the feasibility and accuracy of MR phase-contrast cine technique in cerebrospinal fluid and cerebral blood flow quantification by establish appropriate flow phantoms.
方法：用磁共振相位对比电影法测定模拟脑血液流动的管状模型稳态流动下流体信号强度，并与相应的速率进行相关性分析后分别得出相应的转换函数关系。
Methods: tube flow phantoms which simulating the cerebral blood flow were established. Flow signal intensity of the steady flow in tubes was measured by MR phase-contrast cine technique.
方法：用磁共振相位对比电影法测定模拟脑血液流动的管状模型稳态流动下流体信号强度，并与相应的速率进行相关性分析后分别得出相应的转换函数关系。
Methods: tube flow phantoms which simulating the cerebral blood flow were established. Flow signal intensity of the steady flow in tubes was measured by MR phase-contrast cine technique.
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