| Presentation | 2007-01-26 False Positive Reduction for Detecting Pulmonary Nodules on CT based on Spatial Statistical Analysis Hotaka TAKIZAWA, Shinji YAMAMOTO, Tsuyoshi SHIINA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper describes a novel discrimination method of pulmonary nodules based on statistical analysis of thoracic computed tomography (CT) scans. Our previous Computer-Aided Diagnosis (CAD) system can detect pulmonary nodules from CT scans, but, at the same time, yields many false positives. In order to reduce the false positives, the method proposed in the present paper uses a relationship between pulmonary nodules, false positives and image information on CT scans. The trend of variation of the relationships is acquired through statistical analysis of a set of CT scans prepared for training. In testing, by use of the trend, the method predicts the appearance of pulmonary nodules and false positives in a CT scan, and improves the accuracy of the previous CAD system by modifying the system's output based on the prediction. The method is applied to 218 actual thoracic CT scans with 386 actual pulmonary nodules. The detection accuracy is improved. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Detection of pulmonary nodules / Thoracic CT scans / Computer-aided diagnosis / Statistical analysis / Spatial relationship |
| Paper # | MI2006-106 |
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| Conference Information | |
| Committee | MI |
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| Conference Date | 2007/1/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Medical Imaging (MI) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | False Positive Reduction for Detecting Pulmonary Nodules on CT based on Spatial Statistical Analysis |
| Sub Title (in English) | |
| Keyword(1) | Detection of pulmonary nodules |
| Keyword(2) | Thoracic CT scans |
| Keyword(3) | Computer-aided diagnosis |
| Keyword(4) | Statistical analysis |
| Keyword(5) | Spatial relationship |
| 1st Author's Name | Hotaka TAKIZAWA |
| 1st Author's Affiliation | University of Tsukuba() |
| 2nd Author's Name | Shinji YAMAMOTO |
| 2nd Author's Affiliation | Chukyo University |
| 3rd Author's Name | Tsuyoshi SHIINA |
| 3rd Author's Affiliation | University of Tsukuba |
| Date | 2007-01-26 |
| Paper # | MI2006-106 |
| Volume (vol) | vol.106 |
| Number (no) | 509 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |