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1.发明授权公开(公告)号：US09931094B2
公开(公告)日：2018-04-03
申请号：US15266382
申请日：2016-09-15
CPC分类号： A61B6/5258 , A61B6/032 , A61B6/42 , A61B6/4241 , A61B6/465 , A61B6/467 , A61B6/481 , A61B6/482 , A61B6/503 , A61B6/504 , A61B6/5205 , A61B6/5217
摘要： A method is for generating X-ray image data of an examination object with reduced calcium blooming. The X-ray image data is based on X-ray projection data acquired with an energy-selective X-ray detector and in respect of at least two energy windows. An embodiment of the method includes determining a calcium content in the X-ray projection data by way of a base material analysis, the calcium content describing the calcium-determined part of the X-ray attenuation caused by the examination object; generating a mixed X-ray projection data record with calcium content suppressed by way of a weighting factor of less than one; and reconstructing the X-ray image data from the mixed projection data record by applying a reconstruction algorithm.
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公开(公告)号：US12125586B2
公开(公告)日：2024-10-22
申请号：US16574750
申请日：2019-09-18
发明人： Ute Feuerlein , Christopher Dennl-Ortega Arrieta , Marco Schuster , Danilo Stitz , Rainer Raupach , Thomas Allmendinger , Sebastian Dennert
摘要： A method is for the transmission of patient-specific data to an examination log adjustment unit. In an embodiment, the method includes providing a user interface via a software application; receiving patient-specific data of a patient via the user interface, the patient-specific data being based on an input into the user interface; storing the patient-specific data received; and transmitting the patient-specific data to the examination log adjustment unit, the examination log adjustment unit being embodied to adjust an examination log for a medical imaging examination of the patient based upon the patient-specific data.
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公开(公告)号：US10013759B2
公开(公告)日：2018-07-03
申请号：US15359709
申请日：2016-11-23
CPC分类号： G06T7/0012 , A61B6/032 , A61B6/4241 , A61B6/481 , A61B6/482 , A61B6/504 , A61B6/5217 , G01N23/046 , G06T2207/10081 , G06T2207/30008
摘要： A method is for processing a first image data set including a first image value tuple associated with a volume element of a region of an object to be imaged. In an embodiment, a second image data set is generated based upon the first image data set, including a second image value tuple associated with the volume element, a base material decomposition being capable of being carried based upon the second image data set and based upon a base material set; a starting area and a target area are selected as a function of the base material set, the first image value tuple being located in the starting area; the second image value tuple is ascertained based upon the first image value tuple, the second image value tuple being associated with the first image value tuple via image value tuple imaging and being located in the target area.
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公开(公告)号：US20230165542A1
公开(公告)日：2023-06-01
申请号：US18057821
申请日：2022-11-22
CPC分类号： A61B6/032 , A61B6/482 , A61B6/582 , A61B6/4241
摘要： One or more example embodiments provides a method for evaluating an angiographic dual-energy computed tomography dataset recorded using a contrast agent comprising iodine to determine a quantitative calcium score.
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公开(公告)号：US10776917B2
公开(公告)日：2020-09-15
申请号：US16169134
申请日：2018-10-24
摘要： A method is for training a convolutional neural network of a compensation unit. The method includes: provisioning a machine learning device, the machine learning device being designed for training the convolutional neural network; provisioning a start compensation unit, including an untrained convolutional neural network, on or at the machine learning device; provisioning a training image dataset including a plurality of medical training input images and at least one training output image, wherein a reference object is shown essentially without motion artifacts in the at least one training output image and the reference object concerned is contained in the plurality of medical training input images with different motion artifacts; and training the convolutional neural network of the compensation unit in accordance with a principle of machine learning, using the training image dataset. A compensation unit, a machine learning device, a control device for controlling a medical imaging system are also disclosed.
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公开(公告)号：US10542952B2
公开(公告)日：2020-01-28
申请号：US15499075
申请日：2017-04-27
摘要： A method is described for the determination of a calcium score for a patient to be examined with the aid of a CT system. The method is used to define patient-specific CT-acquisition parameters. In addition, material parameters for a model method for the generation of synthetic image data for virtual CT-acquisition parameters are calibrated using phantom image data recorded with reference CT-acquisition parameters. A calcium score assigned to synthetic phantom image data corresponds to a calcium score determined with phantom image data recorded with reference CT-acquisition parameters. Next, CT-projection-measurement data is acquired for a region of interest using the patient-specific CT-acquisition parameters. The acquired CT-projection-measurement data is used to generate synthetic image data using the calibrated model method. Finally, a calcium score is determined using a standard method on the basis of the synthetic image data. Also described is a calcium-score-determining device. Also described is a computed tomography system.
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公开(公告)号：US10251613B2
公开(公告)日：2019-04-09
申请号：US15297405
申请日：2016-10-19
摘要： A method is disclosed for x-ray CT scanning with a dual-source system, in which two radiation bundles are each delimited by diaphragms such that these radiation bundles are free of mutual points of intersection at least in the examination object. An embodiment of the invention also relates to a dual source CT system, including a controller configured to control radiation-delimiting diaphragms, which delimit and align the radiation bundles such that these run free of mutual points of intersection at least in the examination object.
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公开(公告)号：US12082955B2
公开(公告)日：2024-09-10
申请号：US17553899
申请日：2021-12-17
CPC分类号： A61B6/12 , A61B6/032 , A61B6/4429 , A61B6/461 , A61B6/54
摘要： A method is for actuating a medical imaging device including a radiation source, embodied during a rotational movement around an axis of rotation to irradiate an irradiation region from a plurality of angular positions. In an embodiment, the method includes capturing an object position of a moving object relative to the irradiation region. The Method further includes actuating the medical imaging device based upon the captured object position of the moving object, such that the intensity of the radiation emitted by the radiation source for a first partial number of the plurality of angular positions in a first angular range round the axis of rotation is reduced relative to a second partial number of the plurality of angular positions in a second angular range around the axis of rotation, the captured object position being included in the first angular range.
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9.发明授权公开(公告)号：US11517281B2
公开(公告)日：2022-12-06
申请号：US16872434
申请日：2020-05-12
摘要： A method is for generating image data of an examination object via a computed tomography system including a data processing unit; an X-ray radiation source and an X-ray radiation detector suspended on a support and mounted to be rotatable about a z-axis; and an examination table for supporting the examination object and a reference object arranged in a fixed position relative to the examination table. The method includes generating a raw data set by displacing the X-ray radiation source and the X-ray radiation detector relative to the examination object. During generation of the raw data set, at least one part of the examination object is sampled together with at least one part of the reference object. The sampling of the at least one part of the reference object is used to compensate at least in part for the influence of movement errors during the displacement.
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公开(公告)号：US10706537B2
公开(公告)日：2020-07-07
申请号：US15905919
申请日：2018-02-27
发明人： Thomas Allmendinger , Matthias Baer , Ute Feuerlein , Christiane Koch , Stefan Kaepplinger , Robert Lapp , Christian Tietjen , Rainer Raupach
IPC分类号： G06K9/00 , G06T7/00 , G06N20/00 , G16H50/20 , G16H30/20 , G16H40/63 , G16H50/70 , G16H30/40 , G06K9/62
摘要： A method is for checking a medical image with regard to a processing of the medical image via an image processing module. The method includes providing at least one input requirement of the image processing module relating to at least one image parameter of the medical image; providing the at least one image parameter of the medical image; and checking whether the at least one image parameter fulfills the at least one input requirement.
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