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DOI: 10.3414/ME9230
Computer-assisted Diagnosis for Precancerous Lesions in the Esophagus
Publication History
19 June 2009
Publication Date:
17 January 2018 (online)
![](https://www.thieme-connect.de/media/10.1055-s-00035037/200904/lookinside/thumbnails/10-3414-me9230-1.jpg)
Summary
Objectives: The interpretation of endoscopic findings by gastroenterologists is still a difficult and highly subjective task. Despite important developments such as chromo-endoscopy, pit pattern analysis, fluorescence imaging as well as narrow band imaging it still requires lots of experience and training with a certain tentativeness until the final biopsy. By the development of computer-assisted diagnosis (CAD) systems this process can be supported.
Methods: This paper presents a new approach to CAD for precancerous lesions in the esophagus based on color-texture analysis in a content-based image retrieval (CBIR) framework. The novelty of our approach lies in the combination of newly developed color-texture features with the interactive feedback loop provided by a relevance feedback algorithm. This allows the expert to steer the query and is still robust against accidental false decisions.
Results: We reached an inter-rater reliability of κ = 0.71 on a database of 390 endoscopic images. The retrieval accuracy didn’t change significantly until a wrong decision rate of 20%.
Conclusions: Thus, the system could be able to support practitioners with less experience or in private practice. In combination with a connected case database it can also support case-based reasoning for the diagnostic decision process.
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