Lau, Yu Shi and Tan, Li Kuo and Chee, Kok Han and Chan, Chow Khuen and Liew, Yih Miin (2024) Efficient autonomous lumen segmentation in intravascular optical coherence tomography images: Unveiling the potential of polynomial-regression convolutional neural network. IRBM, 45 (1). ISSN 1876-0988, DOI https://doi.org/10.1016/j.irbm.2023.100814.
Full text not available from this repository.Abstract
Objectives: Intravascular optical coherence tomography (IVOCT) is a crucial micro-resolution imaging modality used to assess the internal structure of blood vessels. Lumen segmentation in IVOCT images is vital for measuring the location and the extent of vessel blockages and for guiding percutaneous coronary intervention. Obtaining such information in real-time is essential, necessitating the use of fast automated algorithms. In this paper, we proposed an innovative polynomial-regression convolutional neural network (CNN) for fast and automated IVOCT lumen segmentation.Materials and methods: The polynomial-regression CNN architecture was uniquely crafted to enable single pass extraction of lumen borders via IVOCT image regression, ensuring real-time processing efficiency without compromising accuracy. The architecture designed convolution for regression while omitting fully connected layers, leading to the spatial output of lumen representation as polynomial coefficients, thus enabling the formation of interconnected lumen points. The approach equipped the network to comprehend the intricate and continuous geometries and curvatures intrinsic to blood vessels in transverse and longitudinal dimensions. The network was trained on a dataset of 16,165 images and evaluated using 7,016 images.Results: The predicted segmentations exhibited a distance error of less than 2 pixels (26.40 mu m), Dice's coefficient of 0.982, Jaccard Index of 0.966, sensitivity of 0.980, specificity of 0.999, and a prediction time of 4 s (for a pullback containing 360 images). This technique demonstrated significantly improved performance in both accuracy and speed compared to published techniques. Conclusion: The strong segmentation performance, fast speed, and robustness to image variations highlight the practical clinical utility of the proposed polynomial-regression network. (c) 2023 AGBM. Published by Elsevier Masson SAS. All rights reserved.
| Item Type: | Article |
|---|---|
| Funders: | Malaysia Ministry of Higher Education Fundamental Research Grant Scheme [FRGS/1/2018/SKK03/UM/02/1] |
| Uncontrolled Keywords: | Convolutional neural network; Deep learning; Intravascular optical coherence tomography; Lumen segmentation; Polynomial regression |
| Subjects: | R Medicine R Medicine > R Medicine (General) > Medical technology |
| Divisions: | Faculty of Engineering > Biomedical Engineering Department Faculty of Medicine > Biomedical Imaging Department Faculty of Medicine > Medicine Department |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 01 Jul 2024 02:51 |
| Last Modified: | 01 Jul 2024 02:51 |
| URI: | http://eprints.um.edu.my/id/eprint/44276 |
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