Content-based image retrieval with semantic navigation for medical images with multifocal diseases in integrated RIS/PACS system

Yanjie Zhu; Jianguo Zhang

doi:10.1117/12.876982

24 March 2011 Content-based image retrieval with semantic navigation for medical images with multifocal diseases in integrated RIS/PACS system

Yanjie Zhu, Jianguo Zhang

Author Affiliations +

Proceedings Volume 7967, Medical Imaging 2011: Advanced PACS-based Imaging Informatics and Therapeutic Applications; 79670W (2011) https://doi.org/10.1117/12.876982
Event: SPIE Medical Imaging, 2011, Lake Buena Vista (Orlando), Florida, United States

Abstract

In this paper, we proposed a novel architecture integrated with RIS/PACS system that combined image annotation, CBIR techniques and high-dimensional index to retrieve similar medical images with one or more relevant focus in large scale medical image database. In our designed system, regions of interest (ROIs) were labeled by symptom descriptions found in relevant radiology reports as semantic navigation. The annotations were saved as xml file with image makeup language (IML). Then low level features such as texture and statistic features were extracted from the ROIs of lesions and inserted into a database. Recursive feature elimination algorithm was applied to find a high performance feature subset for each symptom. These subsets were used to build high dimensional index with semantic labels guiding the searching path as the navigation. As there might be more than one focus in one image, weight values specified by the user were introduced to calculate the final similarities. The searching results of medical images with multi-focal diseases are likely to have the same pathologies and visual effects with example image and are valuable for imaging diagnosis. The system was implemented for lung CT images, but it could be easily extended to other organs.

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Yanjie Zhu and Jianguo Zhang "Content-based image retrieval with semantic navigation for medical images with multifocal diseases in integrated RIS/PACS system", Proc. SPIE 7967, Medical Imaging 2011: Advanced PACS-based Imaging Informatics and Therapeutic Applications, 79670W (24 March 2011); https://doi.org/10.1117/12.876982

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KEYWORDS

Medical imaging

Image retrieval

Feature extraction

Databases

Navigation systems

Visualization

Image segmentation

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