Automated 3D segmentation of the hyoid bone in CBCT using nnU-Net v2: a retrospective study on model performance and potential clinical utility.
Authors
Affiliations (5)
Affiliations (5)
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Sakarya University, Adapazarı, Sakarya, 54100, Turkey.
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Sakarya University, Adapazarı, Sakarya, 54100, Turkey. [email protected].
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Inönü University, Malatya, 44280, Turkey.
- Department of Mathematics Computer, Faculty of Science and Art, Eskişehir Osmangazi University, Eskişehir, 26040, Turkey.
- Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Eskişehir Osmangazi University, Eskişehir, 26040, Turkey.
Abstract
This study aimed to identify the hyoid bone (HB) using the nnU-Net based artificial intelligence (AI) model in cone beam computed tomography (CBCT) images and assess the model's success in automatic segmentation. CBCT images of 190 patients were randomly selected. The raw data was converted to DICOM format and transferred to the 3D Slicer Imaging Software (Version 4.10.2; MIT, Cambridge, MA, USA). HB was labeled manually using the 3D Slicer. The dataset was divided into training, validation, and test sets in a ratio of 8:1:1. The nnU-Net v2 architecture was utilized to process the training and test datasets, generating the algorithm weight factors. To assess the model's accuracy and performance, a confusion matrix was employed. F1-score, Dice coefficient (DC), 95% Hausdorff distance (95% HD), and Intersection over Union (IoU) metrics were calculated to evaluate the results. The model's performance metrics were as follows: DC = 0.9434, IoU = 0.8941, F1-score = 0.9446, and 95% HD = 1.9998. The receiver operating characteristic (ROC) curve was generated, yielding an AUC value of 0.98. The results indicated that the nnU-Net v2 model achieved high precision and accuracy in HB segmentation on CBCT images. Automatic segmentation of HB can enhance clinicians' decision-making speed and accuracy in diagnosing and treating various clinical conditions. Not applicable.