| 講演抄録/キーワード |
| 講演名 |
2009-01-19 13:30
[ポスター講演]逐次近似法による体動補正付3次元PET画像再構成の実装方法の検討 ○木内尚子(千葉大)・山谷泰賀(放射線医学総研)・長谷川智之(北里大)・小林哲哉(筑波大)・村山秀雄(放射線医学総研)・菅 幹生(千葉大) MI2008-93 |
| 抄録 |
(和) |
The patient’s movements during the measurement process induce an artifact in the reconstructed image in high resolution positron emission tomography (PET). An effective motion-correction method for statistical PET reconstruction has proposed. This method requires a considerable time to the three-dimensional global sensitivity image (GSI) which is a denominator of the ML-EM iteration formula. We proposed a practical approximation method for the calculation of the GSI by the rigid transformation images of the first motion-frame’s GSI. From the result of the simulation, the proposed method reduced image artifacts as well as the computation time. |
| (英) |
The patient’s movements during the measurement process induce an artifact in the reconstructed image in high resolution positron emission tomography (PET). An effective motion-correction method for statistical PET reconstruction has proposed. This method requires a considerable time to the three-dimensional global sensitivity image (GSI) which is a denominator of the ML-EM iteration formula. We proposed a practical approximation method for the calculation of the GSI by the rigid transformation images of the first motion-frame’s GSI. From the result of the simulation, the proposed method reduced image artifacts as well as the computation time. |
| キーワード |
(和) |
PET / Motion Correction / / / / / / |
| (英) |
PET / Motion Correction / / / / / / |
| 文献情報 |
信学技報, vol. 108, no. 385, MI2008-93, pp. 163-164, 2009年1月. |
| 資料番号 |
MI2008-93 |
| 発行日 |
2009-01-12 (MI) |
| ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
| PDFダウンロード |
MI2008-93 |