We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
The Changes in Upper Airway Volume after Orthognathic Surgery Evaluated by Individual Segmentation on CBCT Images.
- Authors
FAUR, Cosmin Ioan; ROMAN, Raluca Ancuta; BRAN, Simion; DINU, Cristian; COCLICI, Alina; ROTARU, Horatiu; HEDESIU, Mihaela
- Abstract
Objectives: The aim of this CBCT study was to evaluate the postoperative volume changes of the rhinosinusal airway space, maxillary sinuses and nasal fossa, that occur after Le Fort I osteotomy, using individual segmentation of 3D virtual models. Material and methods: A number of 16 patients (with Class II and Class III malocclusions) who underwent a CBCT examination for orthognathic surgery at six month-interval between preoperative and postoperative evaluations were included. Patients with thickening of the sinus mucosa, craniofacial syndromes, maxillofacial trauma, rhinoplasty or other maxillofacial pathological conditions were excluded from the study. Individual segmentation of airway volumes was performed by the ITK-SNAP 2.0 software. Paired student t-test was used for the statistical examination of volume changes and Pearson's test for the assessment of intra-rate correlation. Outcomes: A statistically significant decrease in the rhinosinusal volume in Class II (9.36±3.43 cm³) and Class III malocclusions (3.65±2.96 cm³) was found after Le Fort I osteotomy. A decrease in volume was also found for maxillary sinuses (5.63±1.52 cm³ for Class II and 6.72±4.5 cm³ for Class III malocclusion). Nasal fossa decreased in volume (3.79±3.8 cm³) in Class II malocclusion patients and increased (3.07±2.39 cm³) in Class III malocclusion patients. The Pearson correlation revealed a high intra-rate agreement of measurements. Conclusion: Le Fort I osteotomy modifies the postoperative volume of rhinosinusal aerial spaces and individual segmentation on CBCT images is a useful tool to analyze the changes.
- Subjects
ORTHOGNATHIC surgery; NASAL cavity; PARANASAL sinuses; IMAGE segmentation; MAXILLARY sinus; MALOCCLUSION
- Publication
Maedica - a Journal of Clinical Medicine, 2019, Vol 14, Issue 3, p213
- ISSN
1841-9038
- Publication type
Article
- DOI
10.26574/maedica.2019.14.3.213