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公开(公告)号：US20220293247A1
公开(公告)日：2022-09-15
申请号：US17249783
申请日：2021-03-12
发明人： Eli Gibson , Bogdan Georgescu , Pascal Ceccaldi , Youngjin Yoo , Jyotipriya Das , Thomas Re , Eva Eibenberger , Andrei Chekkoury , Barbara Brehm , Thomas Flohr , Dorin Comaniciu , Pierre-Hugo Trigan
摘要： Systems and method for performing a medical imaging analysis task for making a clinical decision are provided. One or more input medical images of a patient are received. A medical imaging analysis task is performed from the one or more input medical images using a machine learning based network. The machine learning based network generates a probability score associated with the medical imaging analysis task. An uncertainty measure associated with the probability score is determined. A clinical decision is made based on the probability score and the uncertainty measure.
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公开(公告)号：US11216991B2
公开(公告)日：2022-01-04
申请号：US15145943
申请日：2016-05-04
发明人： Thomas Flohr , Steffen Kappler
摘要： A method is disclosed for generating an image. An embodiment of the method includes detecting a first projection data set via a first group of detector units, the first group including a first plurality of first detector units, each having more than a given number of detector elements; detecting a second projection data set via a second group of detector units, the second group including a second plurality of second detector units, each including, at most, the given number of detector elements; reconstructing first image data based on the first projection data set; reconstructing second image data based on the second projection data set; and combining the first image data and the second image data. A non-transitory computer readable medium, a data processing unit, and an imaging device including the data processing unit are also disclosed.
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3.发明授权公开(公告)号：US11058370B2
公开(公告)日：2021-07-13
申请号：US16704638
申请日：2019-12-05
发明人： Thomas Flohr , Bernhard Schmidt
摘要： An X-ray imaging method is for generating image data of a field of view of an object to be examined. In the method, firstly an individual imaging protocol is determined for imaging of the object to be examined. Furthermore, first X-ray projection measurement data with a first X-ray energy spectrum and at least one set of second contrast medium-influenced X-ray projection measurement data with a second X-ray energy spectrum, are acquired from the field of view. A third X-ray energy spectrum with a third mean energy is then determined on the basis of the determined individual imaging protocol. Subsequently, preferably pseudo-monoenergetic image data, associated with the third X-ray energy spectrum, is reconstructed on the basis of the acquired first and at least second X-ray projection measurement data as well as the determined imaging protocol. An image data-generating device is also described. A computerized tomography system is described, moreover.
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公开(公告)号：US11017529B2
公开(公告)日：2021-05-25
申请号：US16386455
申请日：2019-04-17
发明人： Jing Yan , Thomas Flohr , Bernhard Schmidt
摘要： A method is for determining at least one first characteristic value of blood in a patient. In an embodiment, the method includes acquiring, via a computed tomography device, computed tomography data of the patient for at least two energy levels of radiation using multi-energy computed tomography; defining a region of interest including blood, in at least one image data set reconstructed from the computed tomography data acquired; determining, at least in the region of interest defined, attenuation coefficients for each energy level of the at least two energy levels; performing material decomposition into at least two materials, one material of the two materials being iron, using the attenuation coefficients determined, yielding at least a fraction of iron in the region of interest defined; and determining the at least one first characteristic value, at least one of as and from the fraction of iron yielded.
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公开(公告)号：US10682104B2
公开(公告)日：2020-06-16
申请号：US16050093
申请日：2018-07-31
发明人： Thomas Flohr , Michael Grasruck , Philipp Hoelzer , Mark-Aleksi Keller-Reichenbecher , Bernhard Schmidt
IPC分类号： A61B6/03 , A61B6/00 , A61B6/06 , G01N23/046
摘要： A method is for recording a region of interest of an examination object with a computed tomography system including an energy-selective X-ray detector with a number of energy threshold values that can be set by way of an energy threshold values. In an embodiment, the method includes first recording of first projection scan data with a first set of energy thresholds; setting a second set of energy thresholds different from the first set of energy thresholds, based on a temporally variable parameter; and second recording of second projection scan data different from the first projection scan data with the second set of energy thresholds.
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公开(公告)号：US10420522B2
公开(公告)日：2019-09-24
申请号：US15428729
申请日：2017-02-09
发明人： Thomas Flohr , Bernhard Schmidt
摘要： An X-ray imaging method is for generating contrast-enhanced image data relating to an examination region of an object to be examined. In an embodiment of the method, first contrast-agent influenced measured X-ray projection data with a first X-ray energy spectrum and at least one set of second contrast-agent influenced measured X-ray projection data with a second X-ray energy spectrum are acquired from the examination region. Subsequently, image data assigned to a third X-ray energy spectrum with a third mean energy, based on the first and at least second measured X-ray projection data is reconstructed based on the first and at least second measured X-ray projection data that has been acquired. A mean energy of the first X-ray energy spectrum and a mean energy of the second X-ray energy spectrum are selected as a function of a dimension parameter value of the object that is to be examined.
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公开(公告)号：US10335095B2
公开(公告)日：2019-07-02
申请号：US15225861
申请日：2016-08-02
发明人： Thomas Flohr
摘要： A method is for local improvement of the image quality of an imaging X-ray acquisition. In an embodiment, the method includes localizing an imaging region of a structure; selecting an environment of the imaging region; setting an acquisition parameter for the environment of the imaging region, wherein the acquisition parameter for the environment of the imaging region is different from a region outside of the environment of the imaging region; and acquiring an image dataset.
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公开(公告)号：US10176896B2
公开(公告)日：2019-01-08
申请号：US15691855
申请日：2017-08-31
发明人： Puneet Sharma , Lucian Mihai Itu , Thomas Flohr , Dorin Comaniciu
IPC分类号： G16H50/20 , G06F19/00 , G06N99/00 , G16H50/50 , G16H10/60 , A61B6/03 , A61B6/00 , G06K9/46 , G06N5/04 , G06T7/00 , G06K9/62
摘要： A CT-based clinical decision support system provides coronary decision support. With or without CT-FFR, a machine learnt predictor predicts the clinical decision for the patient based on input from various sources. Using the machine learnt predictor provides more consistent and comprehensive consideration of the available information. The clinical decision support may be provided prior to review of coronary CT data by a radiologist and/or treating physician, providing a starting point or recommendation that may be used by the radiologist and/or treating physician.
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公开(公告)号：US10959685B2
公开(公告)日：2021-03-30
申请号：US16051606
申请日：2018-08-01
摘要： A method for determining a local tissue function of tissue in a body region of interest of an examination object is disclosed. In an embodiment, the method includes segmentation of an outer contour of the tissue using at least one medical image recording representing the body region of interest of the examination object comprising the tissue; subdivision of the segmented tissue into at least two tissue regions; and ascertaining a function parameter relating to the tissue function for each of the at least two tissue regions. Embodiments also relate to a corresponding computing unit for determining a tissue function of tissue, a corresponding medical imaging system, a computer program and a computer-readable data carrier.
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10.发明申请公开(公告)号：US20190150864A1
公开(公告)日：2019-05-23
申请号：US16191687
申请日：2018-11-15
摘要： A method is for controlling an x-ray imaging device, in particular a computed tomography device. The x-ray imaging device includes an x-ray source and a photon counting detector as an x-ray detector. The methods includes, for an image acquisition process of a patient: determining at least one input parameter relating to at least one of an attenuation property of the patient and a purpose of the image acquisition; at least one of determining or adapting at least one operation parameter of the x-ray detector, dependent upon the at least one input parameter determined; and performing the image acquisition using the at least one operation parameter determined or adapted.
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