Choosing the best method to utilise single positron emission computed tomography (SPECT) scans in the management of unilateral condylar hyperplasia

Facial asymmetry secondary to unilateral condylar hyperplasia can be a diagnostic challenge to oral and maxillofacial surgeons. Single positron emission computed tomography (SPECT) scans provide a useful adjunct. We report a brief summary of the evidence describing the effectiveness of different methods of analysing SPECT scans and compare it with the results of a 10-year study at Sunderland Hospital. Overall, both the evidence base and our study strongly favour use of the condyle:condyle ratio over the condyle:reference bone suggesting that no further comparisons are needed. Crown Copyright (c) 2020 Published by Elsevier Ltd on behalf of The British Association of Oral and Maxillofacial Surgeons. All reserved.