DYNAMIC BOWTIE FILTER FOR CONE-BEAM/MULTI-SLICE CT
First Claim
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1. 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.
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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.
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Citations
20 Claims
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1. A dynamic bowtie filter for computed tomography (CT), comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A computed tomography (CT) imaging device, comprising:
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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. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification