| Presentation | 2016-01-19 Improvement of Spatial Resolution and Quantitative Accuracy in MRI Quantitative Susceptibility Mapping for Investigating Neurodegenerative Diseases and Cerebral Functions. Yuya Umemoto, Tomohiro Ueno, Shin-ichi Urayama, Toshihiko Aso, Hidenao Fukuyama, Naozo Sugimoto, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Quantitative Susceptibility Mapping (QSM) can quantify iron accumulation in a brain tissue and cerebral venous oxygen saturation, and they can be an important indicator of neurodegenerative diseases and cerebral functions. Therefore, precise mapping of magnetic susceptibility distribution will lead to understanding of the diseases and the functions. In QSM, magnetic susceptibility distribution can be obtained by deconvolution of magnetic perturbed fields with dipole fields. In our proposed method, densely sampled dipole fields are employed to improve the quality of QSM. In this study, to verify our proposed method, we performed a human study and examined visibility of cerebral blood vessels. We compared Maximal Intensity Projection (MIP) of a susceptibility map from our proposed method to that of the tricubically interpolated a susceptibility map from conventional method. In our proposed method, visibility of several cerebral blood vessels is improved. This means that the quality of QSM is improved. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MRI / Quantitative Susceptibility Mapping(QSM) / Cerebral blood vessel / High Resolution |
| Paper # | MI2015-101 |
| Date of Issue | 2016-01-12 (MI) |
| Conference Information | |
| Committee | MI |
|---|---|
| Conference Date | 2016/1/19(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Bunka Tenbusu Kan |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General topics in medical imaging |
| Chair | Yoshitaka Masutani(Hiroshima City Univ.) |
| Vice Chair | Yoshiki Kawata(Tokushima Univ.) / Yuichi Kimura(Kinki Univ.) |
| Secretary | Yoshiki Kawata(Aichi Inst. of Tech.) / Yuichi Kimura(Nagoya Inst. of Tech.) |
| Assistant | Ryo Haraguchi(NCVC) / Yasushi Hirano(Yamaguchi Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Medical Imaging |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improvement of Spatial Resolution and Quantitative Accuracy in MRI Quantitative Susceptibility Mapping for Investigating Neurodegenerative Diseases and Cerebral Functions. |
| Sub Title (in English) | |
| Keyword(1) | MRI |
| Keyword(2) | Quantitative Susceptibility Mapping(QSM) |
| Keyword(3) | Cerebral blood vessel |
| Keyword(4) | High Resolution |
| 1st Author's Name | Yuya Umemoto |
| 1st Author's Affiliation | Kyoto University(Kyoto Univ.) |
| 2nd Author's Name | Tomohiro Ueno |
| 2nd Author's Affiliation | Kyoto University(Kyoto Univ.) |
| 3rd Author's Name | Shin-ichi Urayama |
| 3rd Author's Affiliation | Kyoto University(Kyoto Univ.) |
| 4th Author's Name | Toshihiko Aso |
| 4th Author's Affiliation | Kyoto University(Kyoto Univ.) |
| 5th Author's Name | Hidenao Fukuyama |
| 5th Author's Affiliation | Kyoto University(Kyoto Univ.) |
| 6th Author's Name | Naozo Sugimoto |
| 6th Author's Affiliation | Kyoto University(Kyoto Univ.) |
| Date | 2016-01-19 |
| Paper # | MI2015-101 |
| Volume (vol) | vol.115 |
| Number (no) | MI-401 |
| Page | pp.pp.131-134(MI), |
| #Pages | 4 |
| Date of Issue | 2016-01-12 (MI) |