核磁共振螺旋快速成像的新进展

NEW DEVELOPMENT IN ULTRA FAST SPIRAL MRI

核磁共振快速成像能在几十毫秒内获取数据，对运动器官作适时显示，并在功能成像的研究等方面具有常规成像不能替代的优点，是核磁共振成像的发展方向．螺旋快速成像对硬件的要求较低，近年来方法上的改善，已使其趋于实用．文章简要介绍了螺旋快速成像原理及网格重建算法．

Ultra fast MRI technology can acquire complex data in tens of milliseconds make real time imaging possible for moving organs.It has advantages over conventional imaging techniques in many research fields.Spiral MRI needs less hardware requirement and is approaching practical application.This paper describes the principle of Spiral MRI and the gridding reconstruction data processing method.