发明名称 |
DYNAMIC ADJUSTABLE SOURCE COLLIMATION DURING FLY-BY SCANNING |
摘要 |
A medical imaging system (100) includes a radiation source (112) that rotates around an examination region about a longitudinal axis and emits radiation while translating in a direction of the longitudinal axis during a fly-by scan. A source collimator (114) collimates the emitted radiation during the fly-by scan to form a generally conical shaped radiation beam that traverses the examination region. The source collimator (114) dynamically varies collimation during the scan so as to increase and decrease a width of the radiation beam in the longitudinal axis direction during the scan. A detector array (122) detects radiation that traverses the examination region and generates signals indicative thereof. A reconstructor (126) reconstructs the signals to generate volumetric image data indicative of the examination region. |
申请公布号 |
WO2009141766(A2) |
申请公布日期 |
2009.11.26 |
申请号 |
WO2009IB51986 |
申请日期 |
2009.05.13 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS, N.V.;HEUSCHER, DOMINIC, J. |
发明人 |
HEUSCHER, DOMINIC, J. |
分类号 |
G06T11/00;A61B6/00 |
主分类号 |
G06T11/00 |
代理机构 |
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代理人 |
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地址 |
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