| Presentation | 2012-09-04 Automated detection of lymph nodes from two-phase 3D chest CT Images Takayuki KITASAKA, Mitsuhiro KISHIMOTO, Yukitaka NIMURA, Masahiro ODA, Shingo IWANO, Kensaku MORI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper presents a method for automated extraction of lymph nodes from 3D contrasted chest CT images taken in artery-and vein-phases. Image diagnosis of the lymph node metastases is quite important in the lung cancer treatment. Automated extraction of lymph nodes from chest CT images by computers is expected to be developed. The previous extraction rnethod caused a lot of FPs(false positive) which are not useful for the clinical use, while about 90%of enlarged lymph nodes(>10mm) were detected automatically. We extract lymph node candidates roughly by using the intensity features of the two-phase 3D contrasted chest CT images. We reduce FPs of the lymph node candidates based on the information of the smallest and longest axes of the candidates after processing by a region growing process. We evaluate our method using 42 cases of CT image pairs. The extraction results are compared with diagnosis results by a radiologist. Experimental results showed that the recall and precision rate of the extracted regions were 92.9% and 11.1 FPs/case, respectively. |
| Keyword(in Japanese) | (See Japanese page) |
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| Paper # | MI2012-41 |
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| Committee | MI |
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| Conference Date | 2012/8/28(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Registration To | Medical Imaging (MI) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Automated detection of lymph nodes from two-phase 3D chest CT Images |
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| 1st Author's Name | Takayuki KITASAKA |
| 1st Author's Affiliation | School of Information Science Aichi Institute of Technology() |
| 2nd Author's Name | Mitsuhiro KISHIMOTO |
| 2nd Author's Affiliation | Graduate School of Information Science Nagoya University |
| 3rd Author's Name | Yukitaka NIMURA |
| 3rd Author's Affiliation | Strategy Office Information and Communications Headquarters Nagoya University |
| 4th Author's Name | Masahiro ODA |
| 4th Author's Affiliation | Graduate School of Information Science Nagoya University |
| 5th Author's Name | Shingo IWANO |
| 5th Author's Affiliation | Graduate School of Medicine Nagoya University |
| 6th Author's Name | Kensaku MORI |
| 6th Author's Affiliation | Graduate School of Information Science Nagoya University:Strategy Office Information and Communications Headquarters Nagoya University |
| Date | 2012-09-04 |
| Paper # | MI2012-41 |
| Volume (vol) | vol.112 |
| Number (no) | 200 |
| Page | pp.pp.- |
| #Pages | 6 |
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