JP2017527425A5 - - Google Patents

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JP2017527425A5
JP2017527425A5 JP2017531985A JP2017531985A JP2017527425A5 JP 2017527425 A5 JP2017527425 A5 JP 2017527425A5 JP 2017531985 A JP2017531985 A JP 2017531985A JP 2017531985 A JP2017531985 A JP 2017531985A JP 2017527425 A5 JP2017527425 A5 JP 2017527425A5
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  1. 磁気共鳴映像法システムにおける使用のための磁気システムであって、
    前記磁気共鳴映像法システムのためのB磁場に寄与する磁場を生成するように構成されるB磁石と、
    前記磁気共鳴映像法システムの撮像領域内の磁束密度を増大させるために、前記B磁石によって生成される前記磁場の少なくとも一部を取り込んで方向付けるように構成される、少なくとも1つの強磁性コンポーネントとを含み、
    前記B磁石及び前記少なくとも1つの強磁性コンポーネントは、約0.2T以下の強度の前記B磁場を生成するように構成される、
    磁気システム。
  2. 磁石は、作動させられるときに、前記磁気共鳴映像法システムのために前記B磁場に寄与する磁場を生成するように構成される、少なくとも1つの電磁石を含む、請求項1に記載の磁気システム。
  3. 当該磁気システムは、約0.2T以下であり且つ約0.1T以上である強度にある前記B磁場を生成するように構成される、請求項1に記載の磁気システム。
  4. 当該磁気システムは、約0.1T以下であり且つ約50mT以上である強度にある前記B磁場を生成するように構成される、
    請求項1に記載の磁気システム。
  5. 当該磁気システムは、約50mT以下であり且つ約20mT以上である強度にある前記B磁場を生成するように構成される、請求項1に記載の磁気システム。
  6. 当該磁気システムは、約20mT以下であり且つ約10mT以上である強度にある前記B磁場を生成するように構成される、
    請求項1に記載の磁気システム。
  7. 前記少なくとも1つの電磁石は、前記磁場を生成するよう、銅又はアルミニウム導体を使用して巻回される少なくとも1つの電磁石コイルを含み、当該磁気システムは、約0.1T以下であり且つ約20mT以上である強度にある前記B磁場を生成するように構成される、請求項1に記載の磁気システム。
  8. 前記少なくとも1つの電磁石は、2平面構成において配置される第1のBコイルと第2のBコイルとを含む一対のBコイルを含み、前記少なくとも1つの強磁性コンポーネントは、前記第1のBコイルと前記第2のBコイルとの間の前記撮像領域において前記B磁場の磁場強度を増大させ且つ/或いは前記B磁場の同質性を変更するように構成される、請求項2に記載の磁気システム。
  9. 前記少なくとも1つの強磁性コンポーネントは、強磁性構造を含み、該強磁性構造は、該強磁性構造を通じて前記第1のBコイル及び前記第2のBコイルによって生成される磁束のための少なくとも1つの戻り経路を提供する磁性回路を形成するよう前記第1のBコイル及び前記第2のBコイルに接続される、請求項8に記載の磁気システム。
  10. 前記強磁性構造は、前記強磁性構造の少なくとも1つの側に沿って磁束のための前記少なくとも1つの戻り経路を提供する、請求項9に記載の磁気システム。
  11. 前記強磁性構造は、前記強磁性構造の両側に沿って磁束のための複数の戻り経路を提供する、請求項10に記載の磁気システム。
  12. 前記強磁性構造は、前記強磁性構造の1つの側のみに沿って磁束のための戻り経路を提供するC形状強磁性構造を含む、請求項10に記載の磁気システム。
  13. 前記強磁性構造は、少なくとも1つの面取りされた隅部を含み、該少なくとも1つの面取りされた隅部は、該少なくとも1つの面取りされた隅部の回りの磁気抵抗を減少させる、請求項9に記載の磁気システム。
  14. 前記強磁性構造は、磁束のための前記少なくとも1つの戻り経路を提供するように構成される複数の強磁性ポストを含む、請求項9に記載の磁気システム。
  15. 前記複数の強磁性ポストのうちの少なくとも1つは、前記磁気共鳴映像法システムから取り外し可能である、請求項14に記載の磁気システム。
  16. 前記少なくとも1つの強磁性コンポーネントは、前記磁束が前記強磁性構造から出る場所を変更するよう、前記第1のBコイル及び/又は前記第2のBコイルに隣接して配置される少なくとも1つの強磁性コンポーネントを更に含む、請求項9に記載の磁気システム。
  17. 前記強磁性構造は、第1の強磁性材料を含み、前記第1のBコイル及び/又は前記第2のBコイルに隣接して配置される前記少なくとも1つの強磁性コンポーネントは、前記第1の強磁性材料とは異なる第2の強磁性材料を含む、請求項16に記載の磁気システム。
  18. 前記少なくとも1つの強磁性コンポーネントは、1つ又はそれよりも多くの中実な強磁性コンポーネントを含む、請求項8に記載の磁気システム。
  19. 前記磁気システムは、少なくとも1つのラミネートパネルを含み、該少なくとも1つのラミネートパネルは、その上に加工される少なくとも1つの電磁石コンポーネントを有する、請求項8に記載の磁気システム。
  20. 前記少なくとも1つのラミネートパネルは、その上に形成される少なくとも1つのBコイル、少なくとも1つのシムコイル、及び/又は少なくとも1つの勾配コイルを含む、請求項19に記載の磁気システム。
  21. 前記少なくとも1つの強磁性コンポーネントは、前記第1のBコイル及び/又は前記第2のBコイルに隣接して配置される少なくとも1つのシムリングを含む、請求項8に記載の磁気システム。
  22. 前記少なくとも1つの強磁性コンポーネントは、前記第1のBコイル及び/又は前記第2のBコイルに隣接して配置される複数の強磁性シム部品を含む、請求項8に記載の磁気システム。
  23. 前記少なくとも1つの強磁性コンポーネントは、前記第1のBコイル及び/又は前記第2のBコイルに隣接して配置される少なくとも1つの強磁性極部品を含む、請求項8に記載の磁気システム。
  24. 前記少なくとも1つの強磁性極部品は、非長方形の形状を有する極部品を含む、請求項23に記載の磁気システム。
  25. 前記少なくとも1つの強磁性コンポーネントは、前記第1のBコイル及び/又は前記第2のBコイルのための支持をもたらす支持構造を提供するように構成される、請求項8に記載の磁気システム。
  26. 前記少なくとも1つの強磁性コンポーネントは、前記少なくとも1つの強磁性コンポーネント内に生成される渦電流を減少させるよう複数の電気的に絶縁されたセグメントを含む、請求項8に記載の磁気システム。
  27. 前記少なくとも1つの強磁性コンポーネントは、前記少なくとも1つの強磁性コンポーネントの重量を減少させるよう、不均一な厚さを有する、請求項8に記載の磁気システム。
  28. 前記B磁石は、前記磁気共鳴映像法システムのための前記B磁場に寄与する磁場を生成する少なくとも1つの永久磁石を含む、請求項1に記載の磁気システム。
  29. 前記少なくとも1つのラミネートパネルは、x方向、y方向、及びz方向においてそれぞれ空間符号化をもたらすよう、少なくとも1つのx勾配コイルと、少なくとも1つのy勾配コイルと、少なくとも1つのz勾配コイルとを含む、請求項20に記載の磁気システム。
  30. 前記少なくとも1つのラミネートパネルは、前記B磁場に寄与するように構成される少なくとも1つのBコイルを含み、前記少なくとも1つのラミネートパネルは、2平面構成において配置される第1のラミネートパネル及び第2のラミネートパネルを含む、請求項29に記載の磁気システム。

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US201462046814P 2014-09-05 2014-09-05
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US201562110049P 2015-01-30 2015-01-30
US62/110,049 2015-01-30
US201562111320P 2015-02-03 2015-02-03
US62/111,320 2015-02-03
US201562174666P 2015-06-12 2015-06-12
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