| Presentation | 2001/1/18 Segmentation of Pelvis and Femur from Computer Tomography Images Reza A. Zoroofi, Toshihiko Sasama, Nobuhiko Sugano, Takashi Nishii, Yoshinobu Sato, Kazuo Yonenobu, Hideki Yoshikawa, Shinichi Tamura, Takahiro Ochi, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Segmentation of pelvis and femur from three-dimensional(3D) computed tomography(CT) images is necessary for the purpose of computer assisted surgical planning and intraoperative navigation of the hip joint. However, clinical complications such as osteoarthritis and congenital deformities, technical limitations in CT imaging such as inherent blurring and partial volume effect, as well as narrow inter-bone regions and presence of blood in the bone tissues result in bone images with textured regions and weak and diffused boundaries. For these reasons, developing feasible techniques for automatic, accurate and robust segmentation and separation of pelvis and femur, that are close spatially in the hip joint, from CT images, is a serious task. In this research, we propose a solution to segment and separate pelvis and femur from 3D CT images. Our approach consists of the following three steps:(a)resampling 3D CT images by a sinc interpolation and enhancing the resultant data set by extracting the principal component of a 3D Hessian matrix;(b)detecting non-overlapping boundaries of pelvis and femur, by optimal thresholding, morphological operations, and fitting a sphere to the common boundary of pelvis and femur;(c)refining the rough boundary obtained in step(b)by employing snakes and moving disk techniques. The proposed techniques were applied to the 3D CT images of 25 subjects. The corresponding algorithms are implemented in the MEDAL software and available in the Internet. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Bone / CT / segmentation / enhancement / Hessian matrix / active contours |
| Paper # | MI2000-67 |
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| Conference Information | |
| 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 Pelvis and Femur from Computer Tomography Images |
| Sub Title (in English) | |
| Keyword(1) | Bone |
| Keyword(2) | CT |
| Keyword(3) | segmentation |
| Keyword(4) | enhancement |
| Keyword(5) | Hessian matrix |
| Keyword(6) | active contours |
| 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 | Toshihiko Sasama |
| 2nd Author's Affiliation | Division of Functional Diagnostic Imaging, Osaka University Medical School |
| 3rd Author's Name | Nobuhiko Sugano |
| 3rd Author's Affiliation | Department of Orthopaedic Surgery, Osaka University Medical School |
| 4th Author's Name | Takashi Nishii |
| 4th Author's Affiliation | Department of Orthopaedic Surgery, Osaka University Medical School |
| 5th Author's Name | Yoshinobu Sato |
| 5th Author's Affiliation | Division of Functional Diagnostic Imaging, Osaka University Medical School |
| 6th Author's Name | Kazuo Yonenobu |
| 6th Author's Affiliation | Department of Orthopaedic Surgery, Osaka University Medical School |
| 7th Author's Name | Hideki Yoshikawa |
| 7th Author's Affiliation | Department of Orthopaedic Surgery, Osaka University Medical School |
| 8th Author's Name | Shinichi Tamura |
| 8th Author's Affiliation | Division of Functional Diagnostic Imaging, Osaka University Medical School |
| 9th Author's Name | Takahiro Ochi |
| 9th Author's Affiliation | Department of Orthopaedic Surgery, Osaka University Medical School:Division of Computer Assisted Orthopaedic Surgery, Osaka University Medical School |
| Date | 2001/1/18 |
| Paper # | MI2000-67 |
| Volume (vol) | vol.100 |
| Number (no) | 596 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |