发明名称 |
Methods and systems for dynamic pitch helical scanning |
摘要 |
Methods and systems for controlling x-ray exposure during a dynamic pitch helical scan using a translatable table are provided. The system includes a collimator positioned between an x-ray source and an object to be scanned configured to shutter an x-ray fan beam generated by the x-ray source to at least one of translate the x-ray fan beam along a z-axis of the scan and vary the width of the x-ray beam along the z-axis, and a collimator controller configured to dynamically position the collimator using at least one of predetermined trajectory of the translatable table and a current position of the translatable table.
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申请公布号 |
US2007110211(A1) |
申请公布日期 |
2007.05.17 |
申请号 |
US20050273851 |
申请日期 |
2005.11.15 |
申请人 |
HSIEH JIANG;KATSEVICH ALEXANDER;BASU SAMIT K |
发明人 |
HSIEH JIANG;KATSEVICH ALEXANDER;BASU SAMIT K. |
分类号 |
H05G1/60;A61B6/00;G01N23/00;G21K1/02;G21K1/12 |
主分类号 |
H05G1/60 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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