作者: Mark Edward Riehl , Robert James Dobberstein
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摘要: A patient alignment system utilizes stationary and mobile light fan beams for precisely positioning a performing NMR studies. One assembly of preferably laser sources is utilized to create visible reference point aligning anatomical in the staged scan position. The position then used as locate volume automatically translate so that optimum homogeneous region polarizing magnetic field. Two assemblies, each separately operable provide vertically movable beam, are vertical point. retrospectively reconstruct images centered field view. obtain prospectively image data magnified zoom or unmagnified offset from isocenter.