IDEAL法における計算不良アーチファクトについての検討
スポンサーリンク
概要
- 論文の詳細を見る
Existence of metal in magnetic resonance imaging (MRI) is very troublesome. In recent years, Iterative decomposition of water and fat with echo asymmetry and least-squares estimation (IDEAL) using 3-points Dixon technique become used as the useful method for uniform fat suppression at the magnetic field inhomogeneity. However, misregistration artifact appeared under some conditions. Purpose of this study is searching for conditions of misregistration artifact on IDEAL method. We have created the phantom which had contained oil, water and the titanium. The relation of misregistration artifact and seed-point of region growing technique was analyzed by shifting the position of metal, changing the position of FOV. Misregistration artifact on IDEAL method was sometimes occurred to existence the metal at center of phantom under the each conditions.
- 2012-03-03
論文 | ランダム
- 歯の硬組織に対する自由電子レーザー照射のレーザー波長依存性とプラズマ・アブレーション
- 統合失調症患者にみられた歯肉の自傷行為
- 細胞診による口腔癌検診
- 29 口腔粘膜細胞診における誤診要因について(口腔(2),一般演題,第46回日本臨床細胞学会秋期大会)
- 28 扁平上皮癌細胞と鑑別が困難であったエナメル上皮腫の細胞像及び病理組織像の比較検討(口腔(2),一般演題,第46回日本臨床細胞学会秋期大会)