发明授权
US06980681B1 Methods and apparatus for helical reconstruction for multislice CT scan
失效
用于多层CT扫描的螺旋重建的方法和装置
- 专利标题： Methods and apparatus for helical reconstruction for multislice CT scan
- 专利标题（中）： 用于多层CT扫描的螺旋重建的方法和装置
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申请号： US09557108申请日： 2000-04-24
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公开(公告)号： US06980681B1公开(公告)日： 2005-12-27
- 发明人: Jiang Hsieh
- 申请人： Jiang Hsieh
- 申请人地址： US WI Waukesha
- 专利权人： GE Medical Systems Global Technology Company, LLC
- 当前专利权人： GE Medical Systems Global Technology Company, LLC
- 当前专利权人地址： US WI Waukesha
- 代理机构： Armstrong Teasdale LLP
- 代理商 Carl B. Horton, Esq.
- 主分类号： A61B6/03
- IPC分类号： A61B6/03 ; G01N23/04 ; G06T1/00 ; G06T11/00 ; G06K9/00
摘要：
One embodiment of the present invention is a method for imaging an object with a computed tomographic (CT) imaging system that includes steps of helically scanning the object with a multi-slice CT imaging system to acquire attenuation measurements of the object, the measurements including more than two conjugate samples for estimation of a projection at a plane of reconstruction of the object; and filtering and backprojecting the attenuation measurements of the object, including the more than two conjugate samples, to reconstruct at least one image slice of the object. An improved sampling pattern and better use of the attenuation samples obtained during a scan is thus provided.
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