Parallel imaging techniques in functional MRI.

摘要: Originally developed for increased scanning velocity in cardiac imaging, parallel imaging (PI) techniques have recently also been applied the reduction of artifacts single-shot techniques. In functional brain (fMRI) techniques, PI has used several purposes. It to reduce distortions caused by length echo-planar readout, diminution gradient-related acoustic noise, as a means increase acquisition speed or achievable coverage per unit time. this article, different applications fMRI are reviewed, together with basic theoretical background and hardware necessary achieve rapid, high signal-to-noise ratio PI-fMRI.