GADNN: a revolutionary hybrid deep learning neural network for age and sex determination utilizing cone beam computed tomography images of maxillary and frontal sinuses

Omid Hamidi; Mahlagha Afrasiabi; Marjan Namaki

doi:10.1186/s12874-024-02183-9

GADNN: a revolutionary hybrid deep learning neural network for age and sex determination utilizing cone beam computed tomography images of maxillary and frontal sinuses

BMC Med Res Methodol. 2024 Feb 27;24(1):50. doi: 10.1186/s12874-024-02183-9.

Authors

Omid Hamidi¹, Mahlagha Afrasiabi², Marjan Namaki³

Affiliations

¹ Department of Science, Hamedan University of Technology, Hamedan, Iran.
² Department of Computer Engineering, Hamedan University of Technology, Hamedan, Iran. m.afrasiabi@hut.ac.ir.
³ Department of Computer Engineering, Hamedan University of Technology, Hamedan, Iran.

Abstract

Introduction: The determination of identity factors such as age and sex has gained significance in both criminal and civil cases. Paranasal sinuses like frontal and maxillary sinuses, are resistant to trauma and can aid profiling. We developed a deep learning (DL) model optimized by an evolutionary algorithm (genetic algorithm/GA) to determine sex and age using paranasal sinus parameters based on cone-beam computed tomography (CBCT).

Methods: Two hundred and forty CBCT images (including 129 females and 111 males, aged 18-52) were included in this study. CBCT images were captured using the Newtom3G device with specific exposure parameters. These images were then analyzed in ITK-SNAP 3.6.0 beta software to extract four paranasal sinus parameters: height, width, length, and volume for both the frontal and maxillary sinuses. A hybrid model, Genetic Algorithm-Deep Neural Network (GADNN), was proposed for feature selection and classification. Traditional statistical methods and machine learning models, including logistic regression (LR), random forest (RF), multilayer perceptron neural network (MLP), and deep learning (DL) were evaluated for their performance. The synthetic minority oversampling technique was used to deal with the unbalanced data.

Results: GADNN showed superior accuracy in both sex determination (accuracy of 86%) and age determination (accuracy of 68%), outperforming other models. Also, DL and RF were the second and third superior methods in sex determination (accuracy of 78% and 71% respectively) and age determination (accuracy of 92% and 57%).

Conclusions: The study introduces a novel approach combining DL and GA to enhance sex determination and age determination accuracy. The potential of DL in forensic dentistry is highlighted, demonstrating its efficiency in improving accuracy for sex determination and age determination. The study contributes to the burgeoning field of DL in dentistry and forensic sciences.

Keywords: Artificial intelligence; Dentistry; Forensic dentistry; Forensic science; Genetic algorithm; Machine learning; Paranasal sinuses.

MeSH terms

Cone-Beam Computed Tomography / methods
Deep Learning*
Female
Humans
Male
Maxillary Sinus / diagnostic imaging
Neural Networks, Computer
Software