1. A method for magnetic resonance imaging (MRI) comprising: using an MRI system to acquire susceptibility tensor data of an object, the susceptibility tensor data being rank 2 or higher and including a plurality of voxels; determining orientations of the voxels; determining whether each of the voxels has an eigenvalue greater than a predetermined magnitude; identifying adjacent voxels that each have an eigenvalue greater than the predetermined magnitude; for each identified adjacent voxel, determining whether an angle between eigenvectors of the identified adjacent voxels is less than a predetermined angle value; and generating an image based on the orientations of the voxels for depicting a characteristic of the object, wherein generating an image comprises generating an image that depicts one or more lines extending between the identified adjacent voxels in which the angle between eigenvectors is less than the predetermined angle value.