Shih-Wei Lin1, Kate Sutherland2,3, Yu-Fang Liao4, Peter A Cistulli2,3, Li-Pang Chuang1, Yu-Ting Chou5, Chih-Hao Chang1, Chung-Shu Lee1, Li-Fu Li1, Ning-Hung Chen1,6. 1. Sleep Center, Department of Pulmonary and Critical Care Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan. 2. Centre for Sleep Health and Research, Department of Respiratory Medicine, Royal North Shore Hospital, Sydney, NSW, Australia. 3. Sydney Medical School, University of Sydney, Sydney, NSW, Australia. 4. Sleep Center, Department of Craniofacial Orthodontics, Chang Gung Memorial Hospital, Taoyuan, Taiwan. 5. Department of Pulmonary and Critical Care Medicine, Chang Gung Memorial Hospital, Chiayi, Taiwan. 6. Department of Respiratory Therapy, Chang Gung University, Taoyuan, Taiwan.
Abstract
BACKGROUND AND OBJECTIVE: Craniofacial structure is an important determinant of obstructive sleep apnoea (OSA) syndrome risk. Three-dimensional stereo-photogrammetry (3dMD) is a novel technique which allows quantification of the craniofacial profile. This study compares the facial images of OSA patients captured by 3dMD to three-dimensional computed tomography (3-D CT) and two-dimensional (2-D) digital photogrammetry. Measurements were correlated with indices of OSA severity. METHODS: Thirty-eight patients diagnosed with OSA were included, and digital photogrammetry, 3dMD and 3-D CT were performed. Distances, areas, angles and volumes from the images captured by three methods were analysed. RESULTS: Almost all measurements captured by 3dMD showed strong agreement with 3-D CT measurements. Results from 2-D digital photogrammetry showed poor agreement with 3-D CT. Mandibular width, neck perimeter size and maxillary volume measurements correlated well with the severity of OSA using all three imaging methods. Mandibular length, facial width, binocular width, neck width, cranial base triangle area, cranial base area 1 and middle cranial fossa volume correlated well with OSA severity using 3dMD and 3-D CT, but not with 2-D digital photogrammetry. CONCLUSION: 3dMD provided accurate craniofacial measurements of OSA patients, which were highly concordant with those obtained by CT, while avoiding the radiation associated with CT.
BACKGROUND AND OBJECTIVE: Craniofacial structure is an important determinant of obstructive sleep apnoea (OSA) syndrome risk. Three-dimensional stereo-photogrammetry (3dMD) is a novel technique which allows quantification of the craniofacial profile. This study compares the facial images of OSA patients captured by 3dMD to three-dimensional computed tomography (3-D CT) and two-dimensional (2-D) digital photogrammetry. Measurements were correlated with indices of OSA severity. METHODS: Thirty-eight patients diagnosed with OSA were included, and digital photogrammetry, 3dMD and 3-D CT were performed. Distances, areas, angles and volumes from the images captured by three methods were analysed. RESULTS: Almost all measurements captured by 3dMD showed strong agreement with 3-D CT measurements. Results from 2-D digital photogrammetry showed poor agreement with 3-D CT. Mandibular width, neck perimeter size and maxillary volume measurements correlated well with the severity of OSA using all three imaging methods. Mandibular length, facial width, binocular width, neck width, cranial base triangle area, cranial base area 1 and middle cranial fossa volume correlated well with OSA severity using 3dMD and 3-D CT, but not with 2-D digital photogrammetry. CONCLUSION: 3dMD provided accurate craniofacial measurements of OSA patients, which were highly concordant with those obtained by CT, while avoiding the radiation associated with CT.
Authors: Kate Sutherland; Julia L Chapman; Elizabeth A Cayanan; Aimee B Lowth; Keith K H Wong; Brendon J Yee; Ronald R Grunstein; Nathaniel S Marshall; Peter A Cistulli Journal: Sleep Breath Date: 2019-03-29 Impact factor: 2.816
Authors: Amika A Kamath; Marielle J Kamath; Selin Ekici; Anna Sofia Stans; Christopher E Colby; Jane M Matsumoto; Mark E Wylam Journal: 3D Print Med Date: 2022-08-01