发明名称 |
PHASE-DRIVEN MULTISECTOR RECONSTRUCTION FOR MULTISLICE HELICAL CT IMAGING |
摘要 |
One aspect of the present invention is a method for multisector computed tomographic CT imaging of a cyclically moving object, including steps of: helically scanning a cyclically moving object with a CT imaging system having multiple detector rows and a rotating gantry, at a gantry rotation speed selected either to lead or to lag a cycle of the cyclically moving object; retrospectively gating the projection data of the object with a gating signal to the motion of the cyclically moving object so that a geometric phase difference is created between a cycle of the rotating gantry and the motion of the cyclically moving object; and reconstructing an image of the cyclically moving object using gated sector data from image data representing a plurality of consecutive cycles of the cyclically moving object.
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申请公布号 |
WO0226135(A1) |
申请公布日期 |
2002.04.04 |
申请号 |
WO2001US30583 |
申请日期 |
2001.09.28 |
申请人 |
GE MEDICAL SYSTEMS GLOBAL TECHNOLOGY COMPANY, LLC |
发明人 |
PAN, TIN-SU;SHEN, YUN |
分类号 |
A61B5/0456;A61B6/00;A61B6/03;(IPC1-7):A61B6/03 |
主分类号 |
A61B5/0456 |
代理机构 |
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地址 |
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