Spiral parallel magnetic resonance imaging.
Spiral parallel magnetic resonance imaging.
复制标题
螺旋平行磁共振成像。
DOI：
10.1109/iembs.2006.259758
复制
发表时间：
2006
期刊：
影响因子：
--
通讯作者：
Hu,Peng
中科院分区：
文献类型：
--
作者：
Meyer,CraigH;Hu,Peng
螺旋k空间扫描是一种快速磁共振成像（MRI）技术，与传统的自旋扭曲技术相比，它可以将扫描时间减少一个数量级。并行成像是用于减少扫描时间的另一种方法，其利用空间变化的射频（RF）线圈灵敏度来减少重建图像所需的数据量。将螺旋扫描与平行成像相结合提供了扫描时间减少因子，该扫描时间减少因子是每种技术的减少因子的乘积，因此可以允许非常快速的成像。螺旋并行MRI的图像重建比自旋扭曲并行MRI涉及更多，并且是活跃的研究领域。用于执行这种图像重建的两种技术是PILS，一种依赖于局部线圈灵敏度的简单图像域方法，以及BOSCO，一种基于k空间中的连续卷积运算的方法
Spiral k-space scanning is a rapid magnetic resonance imaging (MRI) technique that can provide an order of magnitude reduction in scan time compared to conventional spin warp techniques. Parallel imaging is another method for reducing scan time that exploits spatially varying radiofrequency (RF) coil sensitivities to reduce the amount of data required to reconstruct an image. Combining spiral scanning with parallel imaging provide a scan time reduction factor that is the product of the reduction factors for each of the techniques and thus can permit very rapid imaging. Image reconstruction for spiral parallel MRI is more involved than for spin warp parallel MRI and is an area of active research. Two techniques for performing this image reconstruction are PILS, a simple image-domain method that relies on localized coil sensitivities, and BOSCO, a method that is based on successive convolution operations in k-space