Title
Localization of Craniomaxillofacial Landmarks on CBCT Images Using 3D Mask R-CNN and Local Dependency Learning
Abstract
Cephalometric analysis relies on accurate detection of craniomaxillofacial (CMF) landmarks from cone-beam computed tomography (CBCT) images. However, due to the complexity of CMF bony structures, it is difficult to localize landmarks efficiently and accurately. In this paper, we propose a deep learning framework to tackle this challenge by jointly digitalizing 105 CMF landmarks on CBCT images. By explicitly learning the local geometrical relationships between the landmarks, our approach extends Mask R-CNN for end-to-end prediction of landmark locations. Specifically, we first apply a detection network on a down-sampled 3D image to leverage global contextual information to predict the approximate locations of the landmarks. We subsequently leverage local information provided by higher-resolution image patches to refine the landmark locations. On patients with varying non-syndromic jaw deformities, our method achieves an average detection accuracy of 1.38± 0.95mm, outperforming a related state-of-the-art method.
Year
DOI
Venue
2022
10.1109/TMI.2022.3174513
IEEE Transactions on Medical Imaging
Keywords
DocType
Volume
Craniomaxilloficial (CMF) landmark localization,deep learning,Mask R-CNN
Journal
41
Issue
ISSN
Citations 
10
0278-0062
0
PageRank 
References 
Authors
0.34
0
13
Name
Order
Citations
PageRank
Yankun Lang102.03
Chunfeng Lian200.34
Deqiang Xiao344.50
Hannah Deng492.20
Kim-Han Thung500.34
Peng Yuan600.34
Jaime Gateno700.68
Tianshu Kuang865.24
David M Alfi900.34
Li Wang10105178.25
Dinggang Shen1100.34
James J. Xia126416.52
Pew-Thian Yap13109393.77