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US 10,092,257 B2Granted
Dynamic bowtie filter for cone-beam/multi-slice CT
AssigneeRensselaer Polytechnic Institute
InventorsGe Wang, Fenglin Liu, Wenxiang Cong, Qingsong Yang
Life of this patent
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Abstract
Dynamic bowties, imaging systems including a bowtie, and methods of imaging including such bowties or systems are provided. A bowtie can be a three-dimensional (3-D) dynamic bowtie and can include a highly-attenuating bowtie (HB) and a weakly-attenuating bowtie (WB). The HB can be filled with a liquid, and the WB can be immersed in the liquid of the HB.
Claims17
A dynamic bowtie filter for computed tomography (CT), comprising:
- a highly-attenuating bowtie (HB) comprising a liquid contained within a first container;
- and
- a weakly-attenuating bowtie (WB) immersed within the liquid of the HB and comprising a second container;
- wherein the WB is a ⅓ to ⅕ scale version of a 3D surface scan of an object to be imaged during CT scanning.
1 more element
A computed tomography (CT) imaging device, comprising:
- a radiation source;
- a detector to receive radiation after it passes through an object to be imaged;
- and a dynamic bowtie filter disposed between the radiation source and the detector such that radiation from the radiation source is attenuated by the dynamic bowtie filter,
- wherein the dynamic bowtie filter comprises:
- a highly-attenuating bowtie (HB) comprising a liquid contained within a first container;
- and
- a weakly-attenuating bowtie (WB) immersed within the liquid of the HB and comprising a second container;
- wherein the WB is a ⅓ to ⅕ scale version of a 3D surface scan of an object to be imaged during CT scanning.
5 more elements
Dependencies are inferred from the claim text.