| Presentation | 2001/1/18 Segmentation of Avascular Necrosis of the Femoral Head using 3-D MR Images Reza A. Zoroofi, Takashi Nishii, Yoshinobu Sato, Nobuhiko Sugano, Hideki Yoshikawa, Shinichi Tamura, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Avascular necrosis of the femoral head(ANFH) is a common clinical disorder in the orthopedic field. Traditional approaches to study the extent of ANFH are relied primarily on manual segmentation of clinical magnetic resonance images(MRI). However, manual segmentation is insufficient for quantitative evaluation and staging of ANFH. This paper presents a new computerized approach for segmentation of necrotic lesions of the femoral head. The segmentation method consists of several steps including histogram based thresholding, 3-D morphological operations, oblique data reconstruction, and 2-D ellipse fitting. The proposed technique is rapid and efficient. In addition, it is available as a Microsoft Windows' free software package in the Internet. Feasibility of the method is investigated on the data sets of 30 patients(1500 MR images). |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Bone / segmentation / avascular necrosis / osteonecrosis / MRI / femoral head |
| Paper # | MI2000-68 |
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| Committee | MI |
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| Conference Date | 2001/1/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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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) | Segmentation of Avascular Necrosis of the Femoral Head using 3-D MR Images |
| Sub Title (in English) | |
| Keyword(1) | Bone |
| Keyword(2) | segmentation |
| Keyword(3) | avascular necrosis |
| Keyword(4) | osteonecrosis |
| Keyword(5) | MRI |
| Keyword(6) | femoral head |
| 1st Author's Name | Reza A. Zoroofi |
| 1st Author's Affiliation | Faculty of Engineering, University of Tehran:Division of Functional Diagnostic Imaging, Osaka University Medical School() |
| 2nd Author's Name | Takashi Nishii |
| 2nd Author's Affiliation | Department of Orthopaedic Surgery, Osaka University Medical School |
| 3rd Author's Name | Yoshinobu Sato |
| 3rd Author's Affiliation | Division of Functional Diagnostic Imaging, Osaka University Medical School |
| 4th Author's Name | Nobuhiko Sugano |
| 4th Author's Affiliation | Department of Orthopaedic Surgery, Osaka University Medical School |
| 5th Author's Name | Hideki Yoshikawa |
| 5th Author's Affiliation | Department of Orthopaedic Surgery, Osaka University Medical School |
| 6th Author's Name | Shinichi Tamura |
| 6th Author's Affiliation | Division of Functional Diagnostic Imaging, Osaka University Medical School |
| Date | 2001/1/18 |
| Paper # | MI2000-68 |
| Volume (vol) | vol.100 |
| Number (no) | 596 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |