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公开(公告)号：US12109060B2
公开(公告)日：2024-10-08
申请号：US17068368
申请日：2020-10-12
CPC分类号： A61B6/5217 , A61B5/02007 , A61B5/02028 , A61B5/4839 , A61B5/7275 , A61B6/481 , A61B6/504
摘要： Systems and methods are provided for assessing microvascular dysfunction of a patient. A series of images is acquired of a region of interest within the body of the patient. An imaging-derived index of microcirculatory resistance is determined from the series of images. A clinical parameter representing microvascular dysfunction is assigned to the patient via a predictive model according to at least the imaging-derived index of microcirculatory resistance.
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公开(公告)号：US20240320832A1
公开(公告)日：2024-09-26
申请号：US18189263
申请日：2023-03-24
发明人： Yanbo Zhang , Sasa Grbic , Dorin Comaniciu
CPC分类号： G06T7/0016 , A61B6/481 , A61B6/502 , G06T7/11 , G06T2207/10088 , G06T2207/20081 , G06T2207/20084 , G06T2207/30068 , G06T2207/30096
摘要： Systems and methods for performing a medical imaging analysis task are provided. A pre-contrast medical image and a plurality of post-contrast medical images of an anatomical object of a patient are received. A mask of the anatomical object is generated based on at least one of 1) the pre-contrast medical image or 2) one or more of the plurality of post-contrast medical images. One or more processed post-contrast medical images each associated with a respective feature are generated based on the plurality of post-contrast medical images and the mask of the anatomical object. A medical imaging analysis task is performed using a machine learning based network based on the one or more processed post-contrast medical images and the pre-contrast medical image masked with the mask of the anatomical object. Results of the medical imaging analysis task are output.
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公开(公告)号：US12097061B2
公开(公告)日：2024-09-24
申请号：US17021056
申请日：2020-09-15
发明人： Atsushi Iwashita , Akira Tsukuda , Kosuke Terui , Sota Torii , Takeshi Noda
CPC分类号： A61B6/481 , A61B6/4233 , A61B6/482 , A61B6/504 , A61B6/5211 , H04N5/3205 , G01T1/17 , G01T1/2014
摘要： An imaging control apparatus obtains a plurality of images at different radiation energies by irradiating, with radiation having different radiation energies, a subject in which at least one of a contrast agent, a guide wire, and a stent is inserted, generates an energy subtraction image by performing energy subtraction processing using the plurality of images, and generates a difference image between a mask image that is based on a plurality of energy subtraction images generated in a past and a live image that is based on a current energy subtraction image.
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公开(公告)号：US12089981B2
公开(公告)日：2024-09-17
申请号：US18094450
申请日：2023-01-09
CPC分类号： A61B6/547 , A61B6/06 , A61B6/12 , A61B6/4441 , A61B6/481 , A61B6/487 , A61B6/54 , A61B6/504 , A61B2034/2065 , A61B2034/301 , A61B2090/376
摘要： The invention relates to an interventional system comprising an introduction element (4) like a catheter for being introduced into an object (9), for instance, a person. A moving unit (2) like a robot moves the introduction element within the object, wherein a tracking image generating unit (3) generates tracking images of the introduction element within the object and wherein a controller (8) controls the tracking image generating unit depending on movement parameters of the moving unit, which are indicative of the movement, such that the tracking images show the introduction element. This control can be performed very accurately based on the known real physical movement of the introduction element such that it is not necessary to, for instance, irradiate a relatively large area of the object for ensuring that the introduction element is really captured by the tracking images, thereby allowing for a reduced radiation dose applied to the object.
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公开(公告)号：US20240285247A1
公开(公告)日：2024-08-29
申请号：US18649649
申请日：2024-04-29
发明人： Michael Sarju Vaz , Chelsey Lewis
摘要： Methods and systems are provided for adaptive scan control. In one embodiment, a method includes processing acquired projection data of a monitoring area of a subject to measure a contrast signal of a contrast agent delivered to the subject, determining a hemodynamic marker of the subject based on the contrast signal, generating a scan prescription based on the determined hemodynamic marker of the subject, and performing a multi-phase contrast scan according to the scan prescription.
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公开(公告)号：US12029494B2
公开(公告)日：2024-07-09
申请号：US17241282
申请日：2021-04-27
申请人： HeartFlow, Inc.
发明人： Charles A. Taylor
IPC分类号： G06T7/11 , A61B5/00 , A61B5/02 , A61B5/021 , A61B5/024 , A61B5/026 , A61B5/029 , A61B5/055 , A61B5/107 , A61B5/11 , A61B5/22 , A61B6/00 , A61B6/03 , A61B6/50 , A61B8/02 , A61B8/04 , A61B8/06 , A61B8/08 , A61B34/00 , A61B34/10 , A61M5/00 , G01R33/56 , G01R33/563 , G06F17/10 , G06F18/10 , G06F18/22 , G06F18/24 , G06F30/20 , G06F30/23 , G06F30/28 , G06G7/60 , G06T7/00 , G06T7/12 , G06T7/13 , G06T7/149 , G06T7/20 , G06T7/60 , G06T7/62 , G06T7/70 , G06T7/73 , G06T11/00 , G06T11/20 , G06T11/60 , G06T15/10 , G06T17/00 , G06T17/20 , G06V10/40 , G06V10/42 , G06V10/44 , G06V20/69 , G16B5/00 , G16B45/00 , G16H10/40 , G16H10/60 , G16H30/20 , G16H30/40 , G16H50/30 , G16H50/50 , G16H50/70 , G16H70/00 , A61B90/00 , G06T7/10 , G06V10/46
CPC分类号： A61B34/10 , A61B5/0035 , A61B5/004 , A61B5/0044 , A61B5/02 , A61B5/02007 , A61B5/02028 , A61B5/021 , A61B5/024 , A61B5/026 , A61B5/0263 , A61B5/029 , A61B5/055 , A61B5/1075 , A61B5/1118 , A61B5/22 , A61B5/4848 , A61B5/6852 , A61B5/7246 , A61B5/7275 , A61B5/7278 , A61B5/745 , A61B6/03 , A61B6/032 , A61B6/481 , A61B6/503 , A61B6/504 , A61B6/507 , A61B6/5205 , A61B6/5217 , A61B6/5229 , A61B8/02 , A61B8/04 , A61B8/06 , A61B8/065 , A61B8/481 , A61B8/5223 , A61B8/5261 , A61B34/25 , A61M5/007 , G01R33/5601 , G01R33/5635 , G01R33/56366 , G06F17/10 , G06F18/10 , G06F18/22 , G06F18/24 , G06F30/20 , G06F30/23 , G06F30/28 , G06G7/60 , G06T7/0012 , G06T7/0014 , G06T7/11 , G06T7/12 , G06T7/13 , G06T7/149 , G06T7/20 , G06T7/60 , G06T7/62 , G06T7/70 , G06T7/73 , G06T7/74 , G06T11/00 , G06T11/001 , G06T11/008 , G06T11/20 , G06T11/60 , G06T15/10 , G06T17/00 , G06T17/005 , G06T17/20 , G06V10/40 , G06V10/42 , G06V10/44 , G06V20/698 , G16B5/00 , G16B45/00 , G16H10/40 , G16H10/60 , G16H30/20 , G16H30/40 , G16H50/30 , G16H50/50 , G16H50/70 , G16H70/00 , A61B5/6868 , A61B2034/104 , A61B2034/105 , A61B2034/107 , A61B2034/108 , A61B2090/374 , A61B2090/3762 , A61B2090/3764 , A61B2576/00 , A61B2576/023 , G06T7/10 , G06T2200/04 , G06T2207/10012 , G06T2207/10072 , G06T2207/10081 , G06T2207/10088 , G06T2207/10104 , G06T2207/10108 , G06T2207/20036 , G06T2207/20124 , G06T2207/30016 , G06T2207/30048 , G06T2207/30104 , G06T2210/41 , G06T2211/404 , G06V10/467 , Y02A90/10 , G06T7/0012 , G06T2207/30048
摘要： Embodiments include a system for determining cardiovascular information for a patient. The system may include at least one computer system configured to receive patient-specific data regarding a geometry of the patient's heart, and create a three-dimensional model representing at least a portion of the patient's heart based on the patient-specific data. The at least one computer system may be further configured to create a physics-based model relating to a blood flow characteristic of the patient's heart and determine a fractional flow reserve within the patient's heart based on the three-dimensional model and the physics-based model.
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公开(公告)号：US20240193776A1
公开(公告)日：2024-06-13
申请号：US18586224
申请日：2024-02-23
申请人： CLEERLY, INC.
IPC分类号： G06T7/00 , A61B5/00 , A61B5/055 , A61B6/00 , A61B6/03 , A61B6/50 , A61B8/12 , A61B8/14 , A61K49/04 , G06F18/10
CPC分类号： G06T7/0012 , A61B5/0066 , A61B5/0075 , A61B5/055 , A61B5/7267 , A61B5/742 , A61B5/7475 , A61B6/032 , A61B6/037 , A61B6/481 , A61B6/504 , A61B6/5205 , A61B8/12 , A61B8/14 , A61K49/04 , G06F18/10 , G06T2207/10081 , G06T2207/10088 , G06T2207/10101 , G06T2207/10132 , G06T2207/20081 , G06T2207/30048 , G06T2207/30101
摘要： The disclosure herein relates to systems, methods, and devices for medical image analysis, diagnosis, risk stratification, decision making and/or disease tracking. In some embodiments, the systems, devices, and methods described herein are configured to analyze non-invasive medical images of a subject to automatically and/or dynamically identify one or more features, such as plaque and vessels, and/or derive one or more quantified plaque parameters, such as radiodensity, radiodensity composition, volume, radiodensity heterogeneity, geometry, location, perform computational fluid dynamics analysis, facilitate assessment of risk of heart disease and coronary artery disease, enhance drug development, determine a CAD risk factor goal, provide atherosclerosis and vascular morphology characterization, and determine indication of myocardial risk, and/or the like. In some embodiments, the systems, devices, and methods described herein are further configured to generate one or more assessments of plaque-based diseases from raw medical images using one or more of the identified features and/or quantified parameters.
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公开(公告)号：US20240188910A1
公开(公告)日：2024-06-13
申请号：US18530337
申请日：2023-12-06
发明人： Yasuo SAITO
摘要： An X-ray CT device of an embodiment includes processing circuitry. The processing circuitry acquires data corresponding to energy when X-rays radiated by an X-ray tube are transmitted through a subject. The processing circuitry adjusts conditions including first and second conditions for the data when the data is acquired. The processing circuitry switches the condition from the first condition to the second condition when an injection state of a contrast agent injected into the subject satisfies a predetermined condition. The processing circuitry bundles the data discriminated into some of a plurality of energy bins.
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公开(公告)号：US11992353B2
公开(公告)日：2024-05-28
申请号：US17010484
申请日：2020-09-02
发明人： Michael Sarju Vaz , Chelsey Lewis
摘要： Methods and systems are provided for adaptive scan control. In one embodiment, a method includes processing acquired projection data of a monitoring area of a subject to measure a contrast signal of a contrast agent delivered to the subject, determining a hemodynamic marker of the subject based on the contrast signal, generating a scan prescription based on the determined hemodynamic marker of the subject, and performing a multi-phase contrast scan according to the scan prescription.
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10.发明公开公开(公告)号：US20240164734A1
公开(公告)日：2024-05-23
申请号：US18282821
申请日：2022-03-21
申请人： JEJU NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION , JEJU NATIONAL UNIVERSITY HOSPITAL
发明人： Joon Hyouk CHOI , Dong Guk PAENG , Gwan Suk KANG , Woong Bin KANG
CPC分类号： A61B6/504 , A61B5/026 , A61B6/481 , G06T7/0012 , G06V10/25 , G06T2207/30104
摘要： The present disclosure relates to a method for providing information necessary for assessing severity of coronary artery stenosis, the method includes: administering a contrast agent to a coronary artery; capturing an angiographic image; setting a suspected stenosis area where stenosis is suspected and a proximal area where blood passes before the suspected stenosis area within region of captured image for observing the coronary artery stenosis based on the captured angiographic image; fixing position of the coronary artery where the contrast agent is administered by image processing; and deriving a blood flow velocity ratio, which is a relative ratio of blood flow in the proximal area and the suspected stenosis area, based on time when brightness changes in the proximal area and the suspected stenosis area of the captured image.
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