Accuracy and reliability of linear measurements using 3-dimensional computed tomographic imaging software for Le Fort I Osteotomy.
Our purpose was to compare the accuracy and reliability of linear measurements for Le Fort I osteotomy using volume rendering software. We studied 11 dried skulls and used cone-beam computed tomography (CT) to generate 3-dimensional images. Linear measurements were based on craniometric anatomical landmarks that were predefined as specifically used for Le Fort I osteotomy, and identified twice each by 2 radiologists, independently, using Dolphin imaging version 11.5.04.35. A third examiner then made physical measurements using digital calipers. There was a significant difference between Dolphin imaging and the gold standard, particularly in the pterygoid process. The largest difference was 1.85mm (LLpPtg L). The mean differences between the physical and the 3-dimensional linear measurements ranged from -0.01 to 1.12mm for examiner 1, and 0 to 1.85mm for examiner 2. Interexaminer analysis ranged from 0.51 to 0.93. Intraexaminer correlation coefficients ranged from 0.81 to 0.96 and 0.57 to 0.92, for examiners 1 and 2, respectively. We conclude that the Dolphin imaging should be used sparingly during Le Fort I osteotomy.
['Gaia|Bruno Felipe|BF|', 'Pinheiro|Lucas Rodrigues|LR|', 'Umetsubo|Otávio Shoite|OS|', 'Santos|Oseas|O|', 'Costa|Felipe Ferreira|FF|', 'Cavalcanti|Marcelo Gusmão Paraíso|MG|']
D000328:Adult D059925:Anatomic Landmarks D002508:Cephalometry D054893:Cone-Beam Computed Tomography D005260:Female D006801:Humans D007091:Image Processing, Computer-Assisted D021621:Imaging, Three-Dimensional D008297:Male D008437:Maxilla D008875:Middle Aged D009296:Nasal Cavity D015588:Observer Variation D019340:Osteotomy, Le Fort D056739:Pterygopalatine Fossa D015203:Reproducibility of Results D012984:Software D013100:Sphenoid Bone D055815:Young Adult
Cone-beam computed tomography Tomography 3D imaging Osteotomy Le Fort X-ray computed