逆滤波在消除磁共振图像运动伪影中的仿真和应用研究

Simulation and application of inverse filter eliminating motion artifacts in magnetic resonance images

由于自主运动、呼吸和器官搏动等原因,在磁共振成像过程中会造成运动伪影。该文对脑部、胸部和腹部磁共振图像仿真出不同的运动伪影,通过逆滤波方法和位移纠正来消除运动伪影和复原原始图像。实验结果表明,该文方法可以较好地消除运动伪影并复原原始图像。

The magnetic resonance imaging process will cause motion artifacts for voluntary movement,breathing and pulsating organs and other reasons. In this paper, the brain, chest and abdomen MRI with different motion artifacts are simulated.Displacement correction and inverse filtering method are applied to eliminate motion artifacts and restore the original image.Experimental results show that the proposed method can eliminate motion artifacts and restore the original image.