Quantitative analysis and development of a computer-aided system for identification of regular pit patterns of colorectal lesions
Gastrointestinal Endoscopy Volume 72 Issue 5
Page 1047-1051
published_at 2010-11
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Title ( eng ) |
Quantitative analysis and development of a computer-aided system for identification of regular pit patterns of colorectal lesions
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Creator |
Takemura Yoshito
Onji Keiichi
Oka Shiro
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Source Title |
Gastrointestinal Endoscopy
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Volume | 72 |
Issue | 5 |
Start Page | 1047 |
End Page | 1051 |
Abstract |
Background: Because pit pattern classification of colorectal lesions is clinically useful in determining treatment options for colorectal tumors but requires extensive training, we developed a computerized system to automatically quantify and thus classify pit patterns depicted on magnifying endoscopy images.
Objective: To evaluate the utility and limitations of our automated pit pattern classification system. Design: Retrospective study. Setting: Department of endoscopy at a university hospital. Main Outcome Measurements: Performance of our automated computer-based system for classification of pit patterns on magnifying endoscopic images in comparison to classification by diagnosis of the 134 regular pit pattern images by an endoscopist. Results: For type I and II pit patterns, the results of discriminant analysis were in complete agreement with the endoscopic diagnoses. Type IIIL was diagnosed in 29 of 30 cases (96.7%) and type IV was diagnosed in 1 case. Twenty-nine of 30 cases (96.7%) were diagnosed as type IV pit pattern. The overall accuracy of our computerized recognition system was 132 of 134 (98.5%). Conclusions: Our system is best characterized as semiautomated but is a step toward the development of a fully automated system to assist in the diagnosis of colorectal lesions based on classification of pit patterns. |
NDC |
Medical sciences [ 490 ]
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Language |
eng
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Resource Type | journal article |
Publisher |
Mosby Elsevier
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Date of Issued | 2010-11 |
Rights |
Copyright (c) 2010 American Society for Gastrointestinal Endoscopy Published by Mosby, Inc.
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Publish Type | Author’s Original |
Access Rights | open access |
Source Identifier |
[ISSN] 0016-5107
[DOI] 10.1016/j.gie.2010.07.037
[NCID] AA00653961
[DOI] http://dx.doi.org/10.1016/j.gie.2010.07.037
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