The field of the invention relates to medical imaging systems, and more particularly to systems and methods for restoring a medical image affected by nonuniform rotational distortion. In one embodiment, an imaging system includes an imaging catheter having proximal and distal sections, an imaging device coupled to the distal section of the imaging catheter, said imaging device configured to rotate at a uniform angular velocity, and a processor electrically coupled to imaging device, said processor configured to generate a plurality of vectors as the imaging device rotates to form a medical image, estimate an instantaneous angular velocity of the imaging device as the imaging device rotates, and remap the plurality of vectors in the event that the estimated instantaneous angular velocity differs from the uniform angular velocity.
