Objective To investigate the clinical application value of phase contrast MR imaging and stereological cine MR imaging in the assessment of ventricular function.
目的探讨相位对比法MR和形态体积分析法MR成像技术在评价心室功能中的临床应用价值。
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.
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。
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.
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。
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