Comparison of Micro-CT and Cone Beam CT on the Feasibility of Assessing Mandibular Trabecular Structures in Mandibular condyle

To evaluate the accuracy of Cone-beam CT (CBCT) in assessing trabecular structures Methods: Two human mandibles were scanned by micro-CT (Skyscan 1173 high energy spiral scan micro-CT, Skyscan NV, Kontich, Belgium) and CBCT(3D Accuitomo 170, Morita Japan). The CBCT images were reconstructed in 0.5mm and 1 mm thickness. The condylar images were selected for registration. A parallel algorithm for histogram computation was introduced to perform the registration. Mutual information (MI) value was used to evaluate the match between the images obtained from micro-CT and CBCT.