ＭＲＩにおける陰性造影部位のポジティブコントラスト法による強調画像化
英字タイトル:
Enhancement of Negative Image of MRI by the Positive Contrast Method
著者:
朱 海涛 Haitao ZHU 出町 和之 Kazuyuki DEMACHI 関野 正樹 Masaki SEKINO
発刊日:
公開日:
MRIPositive Contrast MethodSPIOTumor detection
Enhancement of Negative Image of MRI by the Positive Contrast Method
著者:
朱 海涛 Haitao ZHU 出町 和之 Kazuyuki DEMACHI 関野 正樹 Masaki SEKINO
発刊日:
公開日:
カテゴリ: 第7回
キーワードタグ:MRIPositive Contrast MethodSPIOTumor detection
概要
In this study, the new Positive Contrast (PC) method was proposed to emphasize the tumors in MRI images. If the object includes magnetic particles such as S PIO(Super Paramagnetic Iron Oxide), the dark image is obtained because of the MRI's distorted magnetic field by the magnetic particles. This effect appears as the shift of peak position in K-space calculated from the Fourier transform of the sub-area of the MRI images. The tumor-emphasized MRI images were obta ined by selecting only the sub-areas that have the large shift of peak in K-space. The animal experiments verified the validity of this proposed PC method.
