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Title:	Interactive content-based image retrieval with deep learning for CT abdominal organ recognition
Authors:	羅崇銘 Lo, Chung-Ming;Wang, Chi-Cheng;Hung, Peng-Hsiang
Contributors:	圖檔所
Keywords:	abdominal CT;content-based image retrieval;deep learning;vision transformer
Date:	2024-02
Issue Date:	2024-04-29 13:19:20 (UTC+8)
Abstract:	Objective. Recognizing the most relevant seven organs in an abdominal computed tomography (CT) slice requires sophisticated knowledge. This study proposed automatically extracting relevant features and applying them in a content-based image retrieval (CBIR) system to provide similar evidence for clinical use. Approach. A total of 2827 abdominal CT slices, including 638 liver, 450 stomach, 229 pancreas, 442 spleen, 362 right kidney, 424 left kidney and 282 gallbladder tissues, were collected to evaluate the proposed CBIR in the present study. Upon fine-tuning, high-level features used to automatically interpret the differences among the seven organs were extracted via deep learning architectures, including DenseNet, Vision Transformer (ViT), and Swin Transformer v2 (SwinViT). Three images with different annotations were employed in the classification and query. Main results. The resulting performances included the classification accuracy (94%–99%) and retrieval result (0.98–0.99). Considering global features and multiple resolutions, SwinViT performed better than ViT. ViT also benefited from a better receptive field to outperform DenseNet. Additionally, the use of hole images can obtain almost perfect results regardless of which deep learning architectures are used. Significance. The experiment showed that using pretrained deep learning architectures and fine-tuning with enough data can achieve successful recognition of seven abdominal organs. The CBIR system can provide more convincing evidence for recognizing abdominal organs via similarity measurements, which could lead to additional possibilities in clinical practice.
Relation:	Physics in Medicine & Biology, Vol.69, No.4,
Data Type:	article
DOI link:	https://doi.org/10.1088/1361-6560/ad1f86
DOI:	10.1088/1361-6560/ad1f86
Appears in Collections:	[Graduate Institute of Library, Information and Archival Studies] Periodical Articles

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