Visualization of the alignment quality achieved by each coregistration
method. Restaging MR–whole-mount histology image fusion is shown
in three representative cases. Case 10 (a 43-year-old female patient),
case 15 (a 65-year-old male patient), and case 7 (a 47-year-old male
patient) represent cases with the best Dice similarity coefficient,
average Dice similarity coefficient, and worst Dice similarity
coefficient, respectively. Between the investigated linearized iterative
boundary reconstruction (LIBR), rigid point-based registration (PBR),
and multiscale spectral embedding registration (MSERg) methods, LIBR
produced better alignment. Note that in case 7, MSERg produced a
misalignment of approximately 90° between the pathology slice and
the MR image.