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公开(公告)号:US20240104721A1
公开(公告)日:2024-03-28
申请号:US17953484
申请日:2022-09-27
Inventor: Arun Innanje , Xiao Chen , Shanhui Sun , Zhanhong Wei , Terrence Chen
IPC: G06T7/00
CPC classification number: G06T7/0012 , G06T2207/10088 , G06T2207/30048
Abstract: An anatomy-aware contouring editing method includes receiving an image, wherein the image represents an anatomically recognizable structure; identifying a first image segment representing part of the anatomically recognizable structure; annotating the first image segment to generate a label of the part; drawing a contour along a boundary of the part; receiving a first input from a user device indicative of a region of contour failure, wherein the region of contour failure includes a portion of a contour that requires editing; editing the contour for generating an edited contour based on the first input and anatomical information; and updating another contour of another part of the anatomically recognizable structure based on the edited contour, wherein the another part is anatomically related to the part.
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公开(公告)号:US20240062438A1
公开(公告)日:2024-02-22
申请号:US17891668
申请日:2022-08-19
Inventor: Zhang Chen , Siyuan Dong , Shanhui Sun , Xiao Chen , Yikang Liu , Terrence Chen
CPC classification number: G06T11/008 , G06T5/20 , G06T5/003 , G06T5/002 , G06T5/10 , G06T7/0014 , G06T2207/20084 , G06T2207/10088 , G06T2207/20081 , G06T2207/30008
Abstract: Described herein are systems, methods, and instrumentalities associated with using an invertible neural network to complete various medical imaging tasks. Unlike traditional neural networks that may learn to map input data (e.g., a blurry reconstructed MRI image) to ground truth (e.g., a fully-sampled MRI image), the invertible neural network may be trained to learn a mapping from the ground truth to the input data, and may subsequently apply an inverse of the mapping (e.g., at an inference time) to complete a medical imaging task. The medical imaging task may include, for example, MRI image reconstruction (e.g., to increase the sharpness of a reconstructed MRI image), image denoising, image super-resolution, and/or the like.
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公开(公告)号:US20230366964A1
公开(公告)日:2023-11-16
申请号:US17741307
申请日:2022-05-10
Inventor: Xiao Chen , Zhang Chen , Yikang Liu , Shanhui Sun , Terrence Chen , Lin Zhao
IPC: G01R33/56 , G01R33/561
CPC classification number: G01R33/5608 , G01R33/5611 , G06N3/0454
Abstract: Described herein are systems, methods, and instrumentalities associated with reconstruction of multi-contrast magnetic resonance imaging (MRI) images. The reconstruction may be performed based on under-sampled MRI data collected for the multiple contrasts using corresponding sampling patterns. The sampling patterns and the reconstruction operations for the multiple contrasts may be jointly optimized using deep learning techniques implemented through one or more neural networks. An end-to-end reconstruction optimizing framework is provided with which information collected while processing one contrast may be stored and used for another contrast. A differentiable sampler is described for obtaining the under-sampled MRI data from a k-space and a novel holistic recurrent neural network is used to reconstruct MRI images based on the under-sampled MRI data.
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公开(公告)号:US20230342916A1
公开(公告)日:2023-10-26
申请号:US17726383
申请日:2022-04-21
Inventor: Yikang Liu , Shanhui Sun , Terrence Chen , Zhang Chen , Xiao Chen
CPC classification number: G06T7/0012 , G06T5/007 , G06T7/10 , G06T2207/10116 , G06T2207/20084
Abstract: Described herein are systems, methods, and instrumentalities associated with medical image enhancement. The medical image may include an object of interest and the techniques disclosed herein may be used to identify the object and enhance a contrast between the object and its surrounding area by adjusting at least the pixels associated with the object. The object identification may be performed using an image filter, a segmentation mask, and/or a deep neural network trained to separate the medical image into multiple layers that respectively include the object of interest and the surrounding area. Once identified, the pixels of the object may be manipulated in various ways to increase the visibility of the object. These may include, for example, adding a constant value to the pixels of the object, applying a sharpening filter to those pixels, increasing the weight of those pixels, and/or smoothing the edge areas surrounding the object of interest.
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公开(公告)号:US11756240B2
公开(公告)日:2023-09-12
申请号:US16804985
申请日:2020-02-28
Inventor: Arun Innanje , Shanhui Sun , Abhishek Sharma , Zhang Chen , Ziyan Wu
CPC classification number: G06T11/005 , G06T1/20 , G06T19/20 , G06T2207/10081 , G06T2207/10088 , G06T2207/10104 , G06T2207/30004
Abstract: A standalone image reconstruction device is configured to reconstruct the raw signals received from a radiology scanner device into a reconstructed output signal. The image reconstruction device is a vendor neutral interface between the radiology scanner device and the post processing imaging device. The reconstructed output signal is a user readable domain that can be used to generate a medical image or a three-dimensional (3D) volume. The apparatus is configured to reconstruct signals from different types of radiology scanner devices using any suitable image reconstruction protocol.
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公开(公告)号:US11710244B2
公开(公告)日:2023-07-25
申请号:US16673817
申请日:2019-11-04
Inventor: Shanhui Sun , Zhang Chen , Terrence Chen , Ziyan Wu
IPC: G06N3/08 , G06T7/246 , A61B5/11 , A61B5/107 , G06T7/20 , G06T7/62 , G06T7/215 , G06T7/00 , G06T11/00 , G06F18/2132 , G06F18/214 , G06F18/21 , G06V10/25 , G06V10/764 , G06V10/774 , A61B90/00
CPC classification number: G06T7/248 , A61B5/1076 , A61B5/1107 , A61B5/1128 , G06F18/2132 , G06F18/2155 , G06F18/2178 , G06N3/08 , G06T7/0016 , G06T7/20 , G06T7/215 , G06T7/251 , G06T7/62 , G06T11/005 , G06V10/25 , G06V10/764 , G06V10/7753 , A61B2090/061 , G06T2207/10088 , G06T2207/20081 , G06T2207/30048 , G06T2207/30061
Abstract: A system for physiological motion measurement is provided. The system may acquire a reference image corresponding to a reference motion phase of an ROI and a target image of the ROI corresponding to a target motion phase, wherein the reference motion phase may be different from the target motion phase. The system may identify one or more feature points relating to the ROI from the reference image, and determine a motion field of the feature points from the reference motion phase to the target motion phase using a motion prediction model. An input of the motion prediction model may include at least the reference image and the target image. The system may further determine a physiological condition of the ROI based on the motion field.
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公开(公告)号:US20230214964A1
公开(公告)日:2023-07-06
申请号:US17565714
申请日:2021-12-30
Inventor: Shanhui Sun , Li Chen , Yikang Liu , Xiao Chen , Zhang Chen
CPC classification number: G06T5/002 , G06T5/10 , G06T2207/30052 , G06T2207/20048 , G06T2207/20084 , G06T2207/10121
Abstract: An apparatus for stent visualization includes a hardware processor that is configured to input one or more stent images from a sequence of X-ray images and corresponding balloon marker location data to a cascaded spatial transform network. The background is separated from the one or more stent images using the cascaded spatial transform network and a transformed stent image with a clear background and a non-stent background image is generated. The stent layer and non-stent layer are generated using a neural network without online optimization. A mapping function f maps the inputs, the sequence images and marker coordinates, into the two single image outputs.
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公开(公告)号:US11663727B2
公开(公告)日:2023-05-30
申请号:US17154450
申请日:2021-01-21
Inventor: Xiao Chen , Shanhui Sun , Terrence Chen
CPC classification number: G06T7/32 , A61B5/0035 , A61B5/0044 , A61B5/055 , A61B5/318 , A61B5/7267 , G06T7/0012 , G06T2207/10088 , G06T2207/20081 , G06T2207/20084 , G06T2207/30048
Abstract: Described herein are neural network-based systems, methods and instrumentalities associated with cardiac assessment. An apparatus as described herein may obtain electrocardiographic imaging (ECGI) information associated with a human heart and magnetic resonance imaging (MRI) information associated with the human heart, and integrate the ECGI and MRI information using a machine-learned model. Using the integrated ECGI and MRI information, the apparatus may predict target ablation sites, estimate electrophysiology (EP) measurements, and/or simulate the electrical system of the human heart.
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公开(公告)号:US20230160986A1
公开(公告)日:2023-05-25
申请号:US17533276
申请日:2021-11-23
Inventor: Zhang Chen , Shanhui Sun , Xiao Chen , Terrence Chen
CPC classification number: G01R33/5608 , G06N3/08 , G06N3/0454
Abstract: In Multiplex MRI image reconstruction, a hardware processor acquires sub-sampled Multiplex MRI data and reconstructs parametric images from the sub-sampled Multiplex MRI data. A machine learning model or deep learning model uses the subsampled Multiplex MRI data as the input and parametric maps calculated from the fully sampled data, or reconstructed fully sample data, as the ground truth. The model learns to reconstruct the parametric maps directly from the subsampled Multiplex MRI data.
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公开(公告)号:US11604984B2
公开(公告)日:2023-03-14
申请号:US16686539
申请日:2019-11-18
Inventor: Abhishek Sharma , Arun Innanje , Ziyan Wu , Shanhui Sun , Terrence Chen
Abstract: A system comprising a first computing apparatus in communication with multiple second computing apparatuses. The first computing apparatus may obtain a plurality of first trained machine learning models for a task from the multiple second computing apparatuses. At least a portion of parameter values of the plurality of first trained machine learning models may be different from each other. The first computing apparatus may also obtain a plurality of training samples. The first computing apparatus may further determine, based on the plurality of training samples, a second trained machine learning model by learning from the plurality of first trained machine learning models.
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