2013 Fiscal Year Final Research Report
Development of segmentation and visualization method for brain in DT-MRI
| Project/Area Number |
23500561
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Medical systems
|
|---|
| Research Institution | Kyushu University |
|---|
Principal Investigator |
KUMAZAWA Seiji 九州大学, 医学(系)研究科(研究院), 講師 (50363354)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
YOSHIURA Takashi 鹿児島大学, 大学院・医歯学総合研究科, 教授 (40322747)
|
|---|
| Project Period (FY) |
2011 – 2013
|
| Keywords | MRI / 拡散テンソル |
|---|
| Research Abstract |
Our purpose was to develop a new brain tissue segmentation method based on diffusion tensor (DT) MRI without the need for any registration, taking the partial volume effect into account, and to improve the estimation of the white matter fiber tract pathways in the fiber crossing area. Our method was based on the multiple-tensor model and a maximum a posteriori probability principle using DT parameters derived from DT-MRI dataset. The results of the digital phantom experiment and human DT-MRI data demonstrate that our method was able to perform a reasonable estimation and segmentation for brain tissue on DT-MRI data compared with the previous method.
|
