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公开(公告)号：US12130350B2
公开(公告)日：2024-10-29
申请号：US18081906
申请日：2022-12-15
IPC分类号： G01R33/565 , G01R33/56
CPC分类号： G01R33/56509 , G01R33/5608
摘要： For imaging an object subject to a cyclic motion, two or more imaging repetitions are carried out. Each of the imaging repetitions includes a sequence of equally spaced imaging events, wherein each imaging event has an event number, which corresponds to a respective predefined imaging parameter. A cycle duration of the cyclic motion is determined, a number of events per cycle is determined based on the cycle duration and a shift number is determined at least in part randomly. For a first imaging repetition, a starting number is determined depending on the number of events per cycle and the shift number. The first imaging repetition is carried out, wherein the respective sequence is started with an imaging event, whose event number is given by the starting number.
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公开(公告)号：US12109077B2
公开(公告)日：2024-10-08
申请号：US17480381
申请日：2021-09-21
CPC分类号： A61B90/50 , A61B34/30 , A61B2090/3983 , A61B2090/5025
摘要： A device for moving a medical object, the device including a mover device and a sensor unit. The mover device is configured to hold and/or move a medical object at least partially disposed in the mover device by transmitting a force. The sensor unit is configured to detect a counterforce exerted by the medical object on the mover device and acting in the opposite direction to the force. The medical object is at least partially disposed in an examination subject. The device is configured to provide a signal as a function of the counterforce. The mover device is configured to move the medical object as a function of the signal.
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公开(公告)号：US12109055B2
公开(公告)日：2024-10-08
申请号：US17540291
申请日：2021-12-02
发明人： Jing Ming Zheng , Wen Wen Sui , Hong De Mu
CPC分类号： A61B6/102 , A61B6/035 , A61B6/0407 , A61B6/4447 , A61B6/54 , A61B6/586
摘要： A computed tomography (CT) machine system and a state monitoring method are described. The CT machine system comprises a drum-shaped component, a 3D camera, and a control system. The drum-shaped component comprises a cylindrical body, with the center of the cylindrical body being provided with a hollow portion which is rotationally symmetrical about the central axis of the cylindrical body, a rotating component disposed in the cylindrical body rotating about the central axis, a plurality of trigger marks arranged in the rotating component, and a window provided in the cylindrical body. The 3D camera generates image data that is transferred to the control system, from which the control system determines state data of the CT machine. The 3D camera captures an image of the trigger marks through the window to generate marked image data.
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公开(公告)号：US12108991B2
公开(公告)日：2024-10-08
申请号：US17231134
申请日：2021-04-15
发明人： Christian Kaethner , Andreas Meyer , Michael Wiets
CPC分类号： A61B34/20 , A61B8/4218 , A61B34/25 , A61B90/37 , A61B2034/2063
摘要： A medical imaging system includes a medical imaging device to map a mapping region inside an examination object, the medical imaging device being designed such that a location of the mapping region is changable in respect of the examination object; and a processing device, including a data interface, to robotically position a medical object inside the examination object, via a movement device. In an embodiment, the processing device is configured to determine an instantaneous position of the medical object; specify a target position for the medical object, the target position being defined relative to the mapping region; determine one or more control signals, configured to cause a movement of the medical object via the movement device from the instantaneous position to the target position; and provide the one or more control signals, via the data interface, to the movement device.
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公开(公告)号：US20240331225A1
公开(公告)日：2024-10-03
申请号：US18464454
申请日：2023-09-11
IPC分类号： G06T11/00 , G01R33/567
CPC分类号： G06T11/006 , G01R33/567 , G06T2210/41
摘要： A method of generating at least one image using a magnetic resonance imaging (MRI) system includes generating, for each contrast of a plurality of contrasts, an image by forming a multi-dimensional data matrix by dividing MRI imaging data for a contrast into a plurality of bins and generating the image based on at least the MRI imaging data and the multi-dimensional data matrix. Each bin of the plurality of bins corresponds to one of a plurality of respiratory motion states.
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6.发明公开公开(公告)号：US20240331138A1
公开(公告)日：2024-10-03
申请号：US18191108
申请日：2023-03-28
发明人： Jianing Wang , Michael Schwier , Bernhard Geiger , Sasa Grbic
CPC分类号： G06T7/0012 , A61B5/4576 , G06T7/60 , G06T7/73 , G06T2207/10088 , G06T2207/20076 , G06T2207/20081 , G06T2207/20084
摘要： Systems and methods for calculating a distance between a first point and a second point of an anatomical landmark are provided. An input medical image of an anatomical landmark of a patient is received. One or more probability maps predicting a first point and a second point of the anatomical landmark in the input medical image are generated using a machine learning based model. Locations of the first point and the second point in the input medical image are determined based on the one or more probability maps. A distance between the first point and the second point is calculated based on the locations. The locations of the first point and the second point in the input medical image and/or the calculated distance between the first point and the second point are output.
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公开(公告)号：US12106510B2
公开(公告)日：2024-10-01
申请号：US17190674
申请日：2021-03-03
发明人： Parmeet Bhatia , Yimo Guo , Gerardo Hermosillo Valadez , Zhigang Peng , Yu Zhao
IPC分类号： G06T7/00 , A61B90/00 , G06T3/60 , G06T7/70 , G06T7/73 , G06V10/22 , G06V10/40 , G06V10/82 , G06V30/24
CPC分类号： G06T7/73 , A61B90/36 , G06T3/60 , G06T7/0012 , G06T7/70 , G06V10/22 , G06V10/40 , G06V10/82 , G06V30/2504 , A61B2090/363 , G06T2207/30004
摘要： Disclosed is a computer-implemented method for detecting one or more anatomic landmarks in medical image data. In an embodiment, the method includes receiving a medical image data set depicting a body part of a patient; and determining a first set of anatomic landmarks from a first representation of the medical image data set at a first resolution by applying a first trained function to the first representation of the medical image data set. Based on that, a second set of anatomic landmarks is determined from a second representation of the medical image data set at a second resolution, the second resolution being higher than the first resolution, by applying a second trained function different than the first trained function to the second representation of the medical image data set and using the first set of landmarks by the second trained function.
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公开(公告)号：US12106452B2
公开(公告)日：2024-10-01
申请号：US17681405
申请日：2022-02-25
IPC分类号： G06T5/70
CPC分类号： G06T5/70 , G06T2207/10116 , G06T2207/20081 , G06T2207/20084
摘要： A method for noise reduction in a low-dose X-ray image includes preprocessing for determining input data, at least one trained function for determining noise-reduced output data from the input data, and postprocessing for determining a result image from the output data. At least one result parameter specifying at least one desired result attribute of the result image is received or determined. The at least one result attribute is obtained by modifying the preprocessing to set a noise value of at least one first noise parameter. The noise value is determined from the result parameter. The noise value may be selected to differ from a reference value of the first noise parameter. Alternatively or additionally, the at least one result attribute is obtained by setting, according to the result parameter, the at least one trained function to one of a plurality of predefined noise values of at least one second noise parameter.
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公开(公告)号：US12066513B2
公开(公告)日：2024-08-20
申请号：US17239161
申请日：2021-04-23
CPC分类号： G01R33/543 , G01R33/4818 , G01R33/5608
摘要： In a method and system for reducing motion artifacts in magnetic resonance image data, a scout scan of the region of the patient is performed, a magnetic resonance (MR) measurement of the region of the patient is performed to acquire MR image data of the region of the patient, and motion correction is performed on the acquired MR image data based on the scout scan to generate corrected MR image data. The motion correction technique advantageously reduces an influence of a patient motion on the magnetic resonance image data.
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公开(公告)号：US12055611B2
公开(公告)日：2024-08-06
申请号：US17705671
申请日：2022-03-28
发明人： Stephan Biber
IPC分类号： G01R33/3875 , G01R33/3873 , A61B5/00 , A61B5/055
CPC分类号： G01R33/3875 , G01R33/3873 , A61B5/0046 , A61B5/055
摘要： A magnetic resonance apparatus may include at least one sensor and a controller. The magnetic resonance apparatus is positionable in an examination room. A spatial location of the magnetic resonance apparatus in the examination room can be determined using the sensor. In a method for supporting an adjustment of a shim parameter of a magnetic resonance apparatus, a current spatial location of the magnetic resonance apparatus in an examination room is determined using the sensor, and a shim parameter of at least one shim element of the magnetic resonance apparatus is determined based on the current spatial location of the magnetic resonance apparatus and information of a magnetic field database. The magnetic field database may include information about a spatial location of the magnetic resonance apparatus and also magnetic field data correlated with the spatial location.
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