Virtual scale function of gastrointestinal endoscopy for accurate polyp size estimation in real-time: a preliminary study
| Autor: | Shinichiro Sonoda, Keita Harada, Masato Yoshioka, Hiroyuki Okada, Yuichi Sakaguchi, Daisuke Utsunomiya, Takeichi Tatsuta, Satoshi Ozawa, Yuichi Teramura, Hideaki Kinugasa |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Paper
Endoscope Scale (ratio) Computer science Biopsy Biomedical Engineering Image processing Graph paper Interval (mathematics) Imaging phantom Endoscopy Gastrointestinal Imaging Biomaterials medicine Computer vision endoscopy laser applications Endoscopes Observational error real-time imaging medicine.diagnostic_test business.industry Phantoms Imaging Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Endoscopy image processing size estimation Artificial intelligence virtual scale business Algorithms |
| Zdroj: | Journal of Biomedical Optics |
| ISSN: | 1560-2281 1083-3668 |
| Popis: | Significance: Polyp size is important for selecting the surveillance interval or treatment policy. Nevertheless, it is challenging to accurately estimate the polyp size during endoscopy. An easy and cost-effective function to assist in polyp size estimation is required. Aim: To propose a virtual scale function for endoscopy and evaluate its performance and expected accuracy. Approach: An adaptive virtual scale behavior was demonstrated. The measurement error of the virtual scale along the distance between the tip of the endoscope and the object plane was evaluated using graph paper. The accuracy of polyp size estimation by an expert endoscopist was compared with the accuracy of the biopsy forceps method using phantom images. Results: The measurement errors of the virtual scale were ≤ 0.7 mm when the distance to the graph paper, which faced the tip of the endoscope, varied from 4 to 30 mm. The accuracy with the virtual scale was significantly higher than that obtained with biopsy forceps (5.3 ± 5.5 % versus 11.9 ± 9.4 % , P |
| Databáze: | OpenAIRE |
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