Means and methods for improving the MRI “image quality in an MRI imaging” apparatus comprising a non-superconducting electromagnet and a plurality of pole pieces are provided. Said means for improving the image quality chosen from the group consisting of (a) means for reducing degradation of MRI image quality due to B0 field instability; (b) means for decreasing or otherwise correcting residual magnetization; (c) means for providing a 3D scout image; and (d) any combination of the above. These means for improving the image quality provides greater resolution of the imaged object relative to an MRI apparatus not containing such means for improving image quality.