发明名称 |
Medical imaging system and method with separate primary and scattered components |
摘要 |
A computed tomography (CT) or ultra sound imaging system and method are configured to construct images of an object. The imaging system includes: a radiation or ultrasound source including a collimating or a blocking device configured to generate both a narrow beam and a wide beam; a detector configured to detect radiation or ultrasound wave from the radiation or ultrasound wave from the radiation or ultrasound source; and at least one processing circuit configured to: determine a scatter-to-primary ratio (SPR) of the wide beam based on the narrow beam; determine a primary component of the wide beam based on the SPR to thereby separate the primary component from a scattered component of the wide beam; and construct an image of an object inside a patient using the primary component to thereby improve a contrast of the object. |
申请公布号 |
US9226722(B2) |
申请公布日期 |
2016.01.05 |
申请号 |
US201314031025 |
申请日期 |
2013.09.18 |
申请人 |
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发明人 |
Li Yongwang;Ma Li;Ma Feng |
分类号 |
A61B6/12;A61B6/03;A61B8/08;A61B6/00;A61B6/06 |
主分类号 |
A61B6/12 |
代理机构 |
Syncoda LLC |
代理人 |
Syncoda LLC ;Ma Feng |
主权项 |
1. A computed tomography (CT) imaging system comprising:
a radiation source including a collimating or a blocking device configured to generate both a narrow beam and a wide beam; a detector system configured to detect radiation from the radiation from the radiation source, wherein the detector system comprises a plurality of layers of detector arrays, and a filling material disposed between layers, wherein the filling material has measurable or known attenuation properties; and at least one processing circuit configured to:
determine a scatter-to-primary ratio (SPR) of the wide beam based on the narrow beam;calculate a primary component of the wide beam based on the SPR to thereby separate the primary component from a scattered component of the wide beam; andconstruct an image of an object inside a patient using the primary component to thereby improve a contrast of the object. |
地址 |
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