Automated machine learning (AutoML)‐based surface registration methodology for image‐guided surgical navigation system

Abstract

Background Although the surface registration technique has the advantage of being relatively safe and the operation time is short, it generally has the disadvantage of low accuracy. Purpose This research proposes automated machine learning (AutoML)‐based surface registration to improve the accuracy of image‐guided surgical navigation systems. Methods The state‐of‐the‐art surface registration concept is that first, using a neural network model, a new point‐cloud that matches the facial information acquired by a passive probe of an optical tracking system (OTS) is extracted from the facial information obtained by computerized tomography. Target registration error (TRE) representing the accuracy of surface registration is then calculated by applying the iterative closest point (ICP) algorithm to the newly extracted point‐cloud and OTS information. In this process, the hyperparameters used in the neural network model and ICP algorithm are automatically optimized using Bayesian optimization with expected improvement to yield improved registration accuracy. Results Using the proposed surface registration methodology, the average TRE for the targets located in the sinus space and nasal cavity of the soft phantoms is 0.939 ± 0.375 mm, which shows 57.8% improvement compared to the average TRE of 2.227 ± 0.193 mm calculated by the conventional surface registration method (p < 0.01). The performance of the proposed methodology is evaluated, and the average TREs computed by the proposed methodology and the conventional method are 0.767 ± 0.132 and 2.615 ± 0.378 mm, respectively. Additionally, for one healthy adult, the clinical applicability of the AutoML‐based surface registration is also presented. Conclusion Our findings showed that the registration accuracy could be improved while maintaining the advantages of the surface registration technique.

Exploring the Practical Applications of Artificial Intelligence, Deep Learning, and Machine Learning in Maxillofacial Surgery: A Comprehensive Analysis of Published Works

“…Such innovative approach allows for more accurate registration and alignment of the patient's facial data, facilitating improved diagnosis, treatment planning, and surgical outcomes in various medical fields. [29] Maxillofacial surgery is undoubtedly surgical field that would and will benefit from use of AI, ML and augmented reality in different types of surgical procedures such as trauma, oncological surgery, reconstructive or orthognathic surgery.…”

A Deep Learning-Based Approach for Automated Coarse Registration (ACR) of Image-Guided Surgical Navigation

“…The proposed registration method outperformed the optical and electromagnetic registration methods in terms of accuracy. Yoo and Sim [22] proposed automated machine learningbased surface registration process to improve the registration accuracy. Using a neural network model and Bayesian optimization, they extracted a new point-cloud that matched the image space point-cloud.…”

“…Accordingly, a surface registration method has been proposed [1,10]. Related studies have been conducted to improve registration accuracy that is relatively low compared to point registration [1,2,9,10,12,17,[19][20][21][22].…”