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1.发明公开公开(公告)号：US20240354972A1
公开(公告)日：2024-10-24
申请号：US18761164
申请日：2024-07-01
IPC分类号： G06T7/38 , G06F3/04842 , G06F18/214 , G06F18/2431 , G06N20/00 , G06T7/00 , G06T7/11 , G06T7/136 , G06V10/25
CPC分类号： G06T7/38 , G06F3/04842 , G06F18/2155 , G06F18/2431 , G06N20/00 , G06T7/0012 , G06T7/11 , G06T7/136 , G06V10/25
摘要： The current disclosure provides methods and systems for visualizing, comparing, and navigating through, labeled image sequences. In one example, a degree of variation between a plurality of labels for an image in a sequence of images may be encoded as a comparison metric, and the comparison metric for each image may be graphed as a function of image position in the sequence of images, thereby providing a contextually rich view of label variation as a function of progression through the sequence of images. Further, the encoded variation of image labels may be used to automatically flag inconsistently labeled images, wherein the flagged images may be highlighted in a graphical user interface presented to a user, pruned from a training dataset, or a loss associated with the flagged image may be scaled based on the encoded variation during training of a machine learning model.
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公开(公告)号：US12125662B2
公开(公告)日：2024-10-22
申请号：US17657692
申请日：2022-04-01
IPC分类号： H01J35/14 , A61B6/03 , A61B6/40 , G01N23/046
CPC分类号： H01J35/153 , A61B6/032 , A61B6/4028 , G01N23/046 , H01J35/147 , H01J2235/086
摘要： Systems/techniques that facilitate correction of intra-scan focal-spot displacement are provided. In various embodiments, a system can access a first gantry angle of a medical scanner. In various aspects, the system can determine a first displacement of a focal-spot of the medical scanner based on the first gantry angle, by referencing a mapping that correlates gantry angles to focal-spot displacements. In various instances, the system can compensate, via one or more focal-spot position adjusters of the medical scanner, for the first displacement.
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公开(公告)号：US12125604B2
公开(公告)日：2024-10-22
申请号：US17591143
申请日：2022-02-02
摘要： A pre-patient collimator for a CT imaging system is provided. The pre-patient collimator includes a collimator housing including a plurality of walls, wherein the plurality of walls includes a first wall configured to face an X-ray source when the pre-patient collimator is coupled to the CT imaging system and a second wall and a third wall flanking the first wall. The pre-patient collimator also includes a bowtie filter assembly disposed within the collimator housing and including a bowtie filter. The pre-patient collimator further includes an adjustment mechanism configured to move the bowtie filter assembly in a lateral direction between the second wall and the third wall within the collimator housing.
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公开(公告)号：US12125217B2
公开(公告)日：2024-10-22
申请号：US17520254
申请日：2021-11-05
发明人： Prem Venugopal , Cynthia Elizabeth Landberg Davis , Jed Douglas Pack , Jhimli Mitra , Soumya Ghose
CPC分类号： G06T7/248 , G06T7/10 , G16H30/20 , G06T2207/30104
摘要： A computer-implemented method includes obtaining, via a processor, segmented image patches of a vessel along a coronary tree path and associated coronary flow distribution for respective vessel segments in the segmented image patches. The method also includes determining, via the processor, a pressure drop distribution along an axial length of the vessel from the segmented image patches and the associated coronary flow distribution. The method further includes determining, via the processor, critical points in the pressure drop distribution. The method even further includes detecting, via the processor, a presence of a stenosis based on the critical points in the pressure drop distribution.
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5.发明授权公开(公告)号：US12123933B2
公开(公告)日：2024-10-22
申请号：US18079147
申请日：2022-12-12
发明人： Hua Li , Lei Gao , Gaohong Wu
IPC分类号： G01V3/00 , G01R33/48 , G01R33/563 , G01R33/565
CPC分类号： G01R33/56518 , G01R33/4818 , G01R33/56341
摘要： A method for correcting diffusion-weighted echo-planar imaging data (DW-EPI) includes obtaining a first reference scan with no diffusion gradients applied, a second reference scan with a diffusion gradient applied only along a frequency direction, a third reference scan with the diffusion gradient applied only along a phase direction, and a fourth reference scan with the diffusion gradient applied only along a slice direction acquired utilizing an MRI scanner, wherein the reference scans lack phase encoding. The method includes obtaining DW-EPI data acquired utilizing the MRI scanner, wherein the DW-EPI data includes phase errors due to oscillatory eddy currents causing time-varying B0 shift. The method includes generating a phase correction factor based on the reference scans and correcting the phase errors due to the oscillatory eddy currents in the DW-EPI data independent of diffusion gradient direction utilizing the phase correction factor to generate corrected DW-EPI data.
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公开(公告)号：US12121665B2
公开(公告)日：2024-10-22
申请号：US17196117
申请日：2021-03-09
CPC分类号： A61M16/0808 , A61M16/0003 , A61M16/0891 , A61M16/20 , A61M2205/053 , A61M2205/3389 , A61M2205/36
摘要： A moisture management system for a medical device. A water trap has an inlet, outlet, first reservoir, and drain, the inlet receiving gas from a supply connection and the outlet returning the gas to a patient connection. The water trap removes moisture from the gas flowing from the inlet to the outlet, where the moisture removed is held in the first reservoir. The system further includes an evaporation chamber having an inlet, an exhaust, and a second reservoir. The inlet is fluidly coupled to the drain of the water trap to receive the moisture from the first reservoir. The moisture is subsequently held in the second reservoir. The evaporation chamber is configured such that the moisture evaporates from the second reservoir and exits as vapor via the exhaust. An evaporator increases a rate at which the moisture in the second reservoir evaporates via the exhaust.
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公开(公告)号：US20240341706A1
公开(公告)日：2024-10-17
申请号：US18135482
申请日：2023-04-17
发明人： Heber Hernandez , Jordan Brown
CPC分类号： A61B6/466 , A61B6/032 , A61B6/5223
摘要： A C-arm x-ray imaging device includes a radiation source, a detector, a control mechanism and a computing device to control an imaging procedure performed by the imaging system. The computing device includes a processor and an interconnected database containing machine-readable instructions for the operation of the processor and for processing the image data from the detector to create one or more 2D images of a subject and to reconstruct a 3D volume from the one or more 2D images. The processor is configured to determine the distribution of radiation attenuation values across at least one portion of the 3D volume, to determine a window preset for different material types represented in the distribution of radiation attenuation values, where the window presets are presented along with the 2D/3D images on the device display to allow quick switching between images optimizing viewing of different types of materials within the images.
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公开(公告)号：US20240335176A1
公开(公告)日：2024-10-10
申请号：US18749379
申请日：2024-06-20
发明人： Asaf Shtern , Michael Luybansky
IPC分类号： A61B6/42
CPC分类号： A61B6/4258
摘要： A radiation detector head assembly includes a detector column including a detector having a first surface and a second surface opposite the first surface. The detector column includes a first collimator disposed over the first surface of the detector and a second collimator disposed over the second surface of the detector. The detector column includes a first radiation shield disposed over the first collimator, wherein the first radiation shield includes a first recess for receiving the first collimator and a first opening over a third surface of the first collimator, the third surface being opposite the first surface of the detector. The detector column includes a second radiation shield disposed over the second collimator, wherein the second radiation shield includes a second recess for receiving the second collimator and a second opening over a fourth surface of the second collimator, the fourth surface being opposite the second surface.
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公开(公告)号：US12109591B2
公开(公告)日：2024-10-08
申请号：US16565219
申请日：2019-09-09
CPC分类号： B06B1/0685 , A61B8/4494 , B06B1/0607 , A61B8/4411 , A61B8/445 , B06B2201/76
摘要： An ultrasound transducer array architecture and manufacturing method is provided. The method includes providing an ultrasonic transducer including a plurality of modules, each module including an ultrasonic transducer array and an application specific integrated circuit (ASIC), the ultrasonic transducer array and the ASIC electrically coupled to a flexible interconnect, the flexible interconnect coupled to a connector. The ASIC and flexible interconnect may be arranged such that each ultrasonic transducer array is directly adjacent to another ultrasonic transducer array. The ASIC may be electrically coupled to the flexible interconnect and the ASIC to the transducer array via a redistribution layer. Each of the plurality of modules may be a stack with the ultrasonic transducer array on the RDL and RDL on the ASIC, wherein the flexible interconnect extends laterally from a top surface of the ASIC and curves down to a bottom surface of the ASIC.
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公开(公告)号：US20240329010A1
公开(公告)日：2024-10-03
申请号：US18622444
申请日：2024-03-29
发明人： Zuhua Wang , Bo Dan , Xin Wang , Chunyan Qi , Hongyu Zhao
IPC分类号： G01N29/265 , G01N29/06 , G01N29/22
CPC分类号： G01N29/265 , G01N29/0654 , G01N29/225
摘要： A scanning assembly of an ultrasonic imaging device including: a scanning unit configured to send an ultrasonic signal to a subject to be scanned and/or receives an ultrasonic signal reflected by the subject to be scanned; and a transparent screen disposed on the scanning unit, the transparent screen being configured to display information while the subject is being scanned and/or provide for observation of the scanning unit through the transparent screen.
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