Evaluation of the potential of automatic segmentation of the mandibular canal using cone-beam computed tomography.
作者： Nicolaas Lucius Gerlach , Gerrit Jacobus Meijer , Dirk-Jan Kroon , Ewald Maria Bronkhorst , Stefaan Jozef Bergé
DOI: 10.1016/J.BJOMS.2014.07.253
关键词:
摘要: We aimed to investigate the effectiveness of software for automatically tracing mandibular canal on data from cone-beam computed tomography (CT). After had been collected one dentate and edentate fresh cadaver head, both a trained Active Shape Model (ASM) an Appearance (AAM) were used segment canals mental foramen. Semiautomatic segmentation was also evaluated by providing models with manual annotations foramina. To find out if tracings in accordance actual anatomy, we compared position automatic segmentations, as displayed cross-sectional CT views, histological sections exactly same region. The significance differences between results analysed help Fisher's exact test Pearson's correlation coefficient. When based AAM ASM used, measurements varied up 3.45 mm 4.44 mm, respectively. Manual marking foramina did not improve results, there no significant (p = 0.097) among methods. accuracy methods is inadequate use clinical practice.
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