| Presentation | 2018-05-19 A MR bone model-based estimation of the tibial coordinate system Yuma Morita, Toyohiko hayashi, Satoshi Watanabe, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Since the knee joint is known to be one of the most vulnerable parts in the human body, its 3D bone model-based motion analysis has been done in order to understand pathology and causes of knee diseases. Knee motion is usually described as translation and rotation between the coordinate systems constructed on the femur and the tibia. A 3D bone model has been reconstructed from CT images up to now, but recently it’s also reconstructed from MR images due to the advantages of non-invasiveness and soft-tissue model inclusion. However, the conventional tibial coordinate system cannot be applied to this model, because the MR model is usually reconstructed merely around the knee joint. Then, we proposed an approximate tibial coordinate system which can be reconstructed on tibial MR model. As a result of calculating translation/rotation components using the proposed coordinate system, the maximum RMS error was 2.73 [mm] and 2.35 [deg], respectively. Thus, the approximated tibial coordinate system is nearly the same as the conventional tibia coordinate system, but for clinical application, further improvement should be done using shape information of the knee such as the inclination of the joint surface. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Knee motion / Tibia / MR Image / CT image / Coordinate system |
| Paper # | MBE2018-3 |
| Date of Issue | 2018-05-12 (MBE) |
| Conference Information | |
| Committee | MBE / NC |
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| Conference Date | 2018/5/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Univ. of Toyama |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Kazuki Nakajima(Univ. of Toyama) / Masafumi Hagiwara(Keio Univ.) |
| Vice Chair | Masaki Kyoso(TCU) / Yutaka Hirata(Chubu Univ.) |
| Secretary | Masaki Kyoso(Toyama Pref. Univ.) / Yutaka Hirata(Kindai Univ.) |
| Assistant | Kim Juhyon(Univ. of Toyama) / Takumi Kobayashi(YNU) / Yoshihisa Shinozawa(Keio Univ.) / Keiichiro Inagaki(Chubu Univ.) |
| Paper Information | |
| Registration To | Technical Committee on ME and Bio Cybernetics / Technical Committee on Neurocomputing |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A MR bone model-based estimation of the tibial coordinate system |
| Sub Title (in English) | |
| Keyword(1) | Knee motion |
| Keyword(2) | Tibia |
| Keyword(3) | MR Image |
| Keyword(4) | CT image |
| Keyword(5) | Coordinate system |
| 1st Author's Name | Yuma Morita |
| 1st Author's Affiliation | Niigata University(Niigata Unvi) |
| 2nd Author's Name | Toyohiko hayashi |
| 2nd Author's Affiliation | Niigata University(Niigata Unvi) |
| 3rd Author's Name | Satoshi Watanabe |
| 3rd Author's Affiliation | Niigata Medical Center(Medical Center) |
| Date | 2018-05-19 |
| Paper # | MBE2018-3 |
| Volume (vol) | vol.118 |
| Number (no) | MBE-44 |
| Page | pp.pp.13-18(MBE), |
| #Pages | 6 |
| Date of Issue | 2018-05-12 (MBE) |