论文标题
实时回声平面成像阶段对比度MRI的准确性
Accuracy of Real-Time Echo-Planar Imaging Phase Contrast MRI
论文作者
论文摘要
与Cine相对比度MRI（CINE-PC）相比，回声平面成像阶段对比度（EPI-PC）可以实现较低SNR的血流实时量化。在这项研究中，使用模拟大脑脉管系统的脉动真实模型来验证EPI-PC的准确性。 EPI-PC的成像时间为100*60的空间分辨率为62ms/图像。通过自制后处理软件提取重建的EPI-PC流动曲线。在与Cine-PC流曲线进行比较之后，得出结论，EPI-PC可以提供平均流量，误差少于3％，其流曲线将与Cine-PC流量曲线相似。
Compared with CINE phase contrast MRI (CINE-PC), echo-planar imaging phase contrast (EPI-PC) can achieve realtime quantification of blood flow, with lower SNR. In this study, the pulsating real model of the simulated cerebral vasculature was used to verify the accuracy of EPI-PC. The imaging time of EPI-PC was 62ms/image at 100*60 spatial resolution. The reconstructed EPI-PC flow curve was extracted by homemade post-processing software. After comparison with the CINE-PC flow curve, it was concluded that EPI-PC can provide an average flow with less than 3% error, and its flow curve will be similar to the CINE-PC flow curve in shape.
