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Systems and methods for dose optimization based on quality of results

A dose and quality technology, applied in the field of ionizing radiation dose, can solve the problems of lowering the quality threshold and lowering the resolution

Active Publication Date: 2017-06-09
KONINKLJIJKE PHILIPS NV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] D2 (US 2011 / 270623A1) involves a procedure that permits the use of previous scans for new scans, with lower quality thresholds and lower resolution compared to previous studies

Method used

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  • Systems and methods for dose optimization based on quality of results
  • Systems and methods for dose optimization based on quality of results
  • Systems and methods for dose optimization based on quality of results

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Experimental program
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Embodiment Construction

[0018] The following generally describes a method for determining the relationship between the quality of a radiologist's report (e.g., a positive conclusion) and the measured dose deposited to a patient during a corresponding scan and / or using the relationship to determine the estimated dose based on a planned scan. Validate the way in which planning scans are performed.

[0019] first reference figure 1 , schematically illustrates an imaging system 100, such as a computed tomography (CT) scanner. It should be understood that imaging system 100 can be any imaging system that utilizes ionizing radiation to scan a subject. The illustrated imaging system 100 includes a stationary gantry 102 and a rotating gantry 104 . The rotating gantry 104 is rotatably supported by the fixed gantry 102 and rotates about the z-axis about the examination region 106 .

[0020] A radiation source 110 , such as an X-ray tube, is rotatably supported by the rotating gantry 104 . Radiation source ...

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Abstract

A system includes a modeler (214) that generates a model that models quality of conclusions in a radiologist's report as a function of deposited dose for a scan, and a dose optimizer (216) , creating a radiologist's report from the scan, the dose optimizer (216) determines an optimal dose value for the planned scan based on the model and one or more optimization rules (218). A method comprising: generating a model that models the quality of conclusions in a radiologist's report as a function of deposited dose of a scan, creating the radiologist's report from the scan; and, based on the model and one or Multiple optimization rules to determine optimal dose values ​​for planned scans.

Description

technical field [0001] The following relates generally to imaging, and more specifically to optimizing ionizing radiation doses for scans based on radiation doses utilized for previous scans and radiologist reports corresponding to those scans. Background technique [0002] Imaging modalities, such as computed tomography (CT) and X-ray, utilize ionizing radiation to image objects. Unfortunately, ionizing radiation can increase the risk of living tissue damage, radiation sickness, cancer, and death in human or animal subjects. With CT, the radiation dose deposited in a subject depends on factors such as tube current (milliamp-seconds, or mAs), tube voltage (peak kilovolts, or kVp), interval / exposure time (for helical scans), slice thickness, and spacing factors (for axial scans), the number of scans under study, and patient physiology (eg, thicker or thinner). Deposited dose has been measured using the CT dose index (CTDI) in milligrays (mGy) and the dose length product (DL...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B6/03G16H15/00G16H30/20
CPCA61B6/032A61B6/542G16H40/40G16H30/20G16H15/00G06N5/04
Inventor M·C-C·李E·科昂-索拉尔
Owner KONINKLJIJKE PHILIPS NV
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