发明申请
US20060033496A1 Self-shielded gradient field coil for magnetic resonance imaging
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用于磁共振成像的自屏蔽梯度场线圈
- 专利标题: Self-shielded gradient field coil for magnetic resonance imaging
- 专利标题(中): 用于磁共振成像的自屏蔽梯度场线圈
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申请号: US10535530申请日: 2003-10-29
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公开(公告)号: US20060033496A1公开(公告)日: 2006-02-16
- 发明人: Shmaryu Shvartsman , Michael Morich , Gordon DeMeester
- 申请人: Shmaryu Shvartsman , Michael Morich , Gordon DeMeester
- 国际申请: PCT/IB03/04802 WO 20031029
- 主分类号: G01V3/00
- IPC分类号: G01V3/00
摘要:
A gradient coil for a magnetic resonance imaging apparatus (10) includes a primary coil (16) defining an inner cylindrical surface (60), and shield coil (18) or coils defining a coaxial outer cylindrical surface (62). Coil jumps (74) connect the primary and shield coils (16, 18). The coil jumps (74) define a non-planar current-sharing surface (64) extending between inner and outer contours (66, 68) that coincide with the inner and outer cylindrical surfaces (60, 62), respectively. The coil (16, 18, 74) defines a current path that passes across the current sharing surface (64) between the inner and outer contours (66, 68) a plurality of times. Optionally, some primary coil turns (70) are electrically interconnected to define an isolated primary sub coil (P2) that together with a second shield (S2, S2′, S2″) enables a discretely or continuously selectable field of view.
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