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DOSE REDUCTION VIA DYNAMIC COLLIMATION ADJUSTMENT FOR TARGETED FIELD OF VIEW AND/OR DIGITAL TILT CT
DOSE REDUCTION VIA DYNAMIC COLLIMATION ADJUSTMENT FOR TARGETED FIELD OF VIEW AND/OR DIGITAL TILT CT
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机译:通过动态校正调整目标视场和/或数字倾斜CT的剂量
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摘要
Among other things, one or more systems and/or techniques are described for dynamically adjusting, in a fan-angle direction, attenuation of radiation during an examination of an object such that portions of the object that are not represented in resulting (tilted/targeted) images of the object are exposed to less radiation than portions of the object that are represented in resulting (tilted/targeted) images of the object. As a rotating gantry is rotated, blades of a pre-object collimator are dynamically repositioned to selectively attenuate emitted radiation. A collimator adjustment component may be configured to determine how to reposition the blades based at least in part upon at least one of a desired tilt of the resulting (tilted) image(s), a translational position of the object, and a gantry rotation angle, for example.
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