论文标题
实时阶段对比度MRI以量化变化期间脑动脉流动变化
Real-Time Phase Contrast MRI to quantify Cerebral arterial flow change during variations breathing
论文作者
论文摘要
可以在几秒钟内研究脑动脉血流（CABF），而无需通过实时阶段对比度进行任何同步。在健康志愿者正常呼吸期间，在过期和灵感之间发现了CABF的显着变化。概要（100/100）实时阶段对比度MRI已应用于在健康志愿者正常呼吸期间研究脑动脉血流（CABF）。我们开发了一种新型的时域分析方法，以量化正常呼吸对CABF几个参数的影响。我们发现从皮带传感器记录的呼吸信号与重建的动脉血流中存在的呼吸频率成分之间存在延迟。在呼气期间，CABF的平均流量增加了4.4 $ \ pm $ 1.7％，中风的CABF量增加了9.8 $ \ pm $ 3.1％，CABF的心脏时期持续时间增加了8.1 $ \ pm $ 3％。
Cerebral arterial blood flow (CABF) can be investigated in few seconds without any synchronization by Real-Time phase contrast. Significant changes in CABF were found between expiration and inspiration during normal breathing of healthy volunteers. Synopsis (100/100) Real-time phase contrast MRI has been applied to investigate cerebral arterial blood flow (CABF) during normal breathing of healthy volunteers. We developed a novel time-domain analysis method to quantify the effect of normal breathing on several parameters of CABF. We found the existence of a delay between the recorded respiratory signal from the belt sensor and the breathing frequency component present in the reconstructed arterial blood flows. During the expiratory, the mean flow rate of CABF increased by 4.4$\pm$1.7%, stroke volume of CABF increased by 9.8$\pm$3.1% and the duration of the cardiac period of CABF increased by 8.1$\pm$3%.
