Multiprocessor scheduling implementation of the simultaneous multiple volume (SMV) navigator method.
Multiprocessor scheduling implementation of the simultaneous multiple volume (SMV) navigator method.
复制标题
同步多卷 (SMV) 导航器方法的多处理器调度实现。
DOI：
10.1002/mrm.20162
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发表时间：
2004
影响因子：
3.3
通讯作者：
Wang,Yi
中科院分区：
文献类型：
--
作者：
Kolmogorov,Vladimir;Nguyen,ThanhD;Nuval,Anthony;Spincemaille,Pascal;Prince,MartinR;Zabih,Ramin;Wang,Yi
导航门控MRI中的同步多体积（SMV）方法允许使用整个运动范围或整个扫描时间，通过在不同运动状态下同时采集不同图像体积来重建最终图像。每个体积的运动容限范围保持较小，因此SMV在保持运动抑制有效性的同时显著提高了导航方法的扫描效率。本文报告了使用多处理器调度算法的SMV方法的一般实现。每个运动状态被视为一个处理器，每个卷被视为一个作业。即使在运动模式发生变化时，也能保持在最短时间内完成所有作业的高效调度。初步实验表明，SMV显著提高了导航门控MRI的扫描效率。Magn Reson Med 52：362-367，2004.© 2004 Wiley利斯公司
The simultaneous multiple volume (SMV) approach in navigator‐gated MRI allows the use of the whole motion range or the entire scan time for the reconstruction of final images by simultaneously acquiring different image volumes at different motion states. The motion tolerance range for each volume is kept small, thus SMV substantially increases the scan efficiency of navigator methods while maintaining the effectiveness of motion suppression. This article reports a general implementation of the SMV approach using a multiprocessor scheduling algorithm. Each motion state is regarded as a processor and each volume is regarded as a job. An efficient scheduling that completes all jobs in minimal time is maintained even when the motion pattern changes. Initial experiments demonstrated that SMV significantly increased the scan efficiency of navigator‐gated MRI. Magn Reson Med 52:362–367, 2004. © 2004 Wiley‐Liss, Inc.