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公开(公告)号：US11481901B2
公开(公告)日：2022-10-25
申请号：US16929392
申请日：2020-07-15
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Takuma Igarashi , Satoshi Wakai , Kazumasa Arakita , Hideaki Ishii , Yasuko Fujisawa , Shigeo Kaminaga , Kenji Hirohata , Junichiro Ooga
Abstract: There is provided a medical image processing apparatus which includes a first extraction unit configured to extract coronary arteries depicted in images of a plurality of time phases relating to the heart, and to extract at least one stenosed part depicted in each coronary artery; a calculation unit configured to calculate a pressure gradient of each of the extracted coronary arteries, based on tissue blood flow volumes of the coronary arteries; a second extraction unit configured to extract an ischemic region depicted in the images; and a specifying unit configured to specify a responsible blood vessel of the ischemic region by referring to a dominance map, in which each of the extracted coronary arteries and a dominance territory are associated, for the extracted ischemic region, and to specify a responsible stenosis, based on the pressure gradient corresponding to a stenosed part in the specified responsible blood vessel.
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公开(公告)号：US10776960B2
公开(公告)日：2020-09-15
申请号：US16365500
申请日：2019-03-26
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Hideaki Ishii , Satoshi Wakai , Kazumasa Arakita , Takuma Igarashi , Yasuko Fujisawa , Shigeo Kaminaga , Kenji Hirohata , Junichiro Ooga
Abstract: According to one embodiment, a medical image diagnostic apparatus includes a storage memory, processing circuitry, and a display. The storage memory stores data of a plurality of FFR distribution maps constituting a time series regarding a coronary artery, and data of a plurality of morphological images corresponding to the time series. The processing circuitry converts the plurality of FFR distribution maps into a plurality of corresponding color maps, respectively. The display displays a plurality of superposed images obtained by superposing the plurality of color maps and the plurality of morphological images respectively corresponding in phase to the plurality of color maps. The display restricts display targets for the plurality of color maps based on the plurality of FFR distribution maps or the plurality of morphological images.
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公开(公告)号：US11900513B2
公开(公告)日：2024-02-13
申请号：US17818043
申请日：2022-08-08
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Hideaki Ishii , Guang Yi Ong , Hiroshizu Morishima , Junya Suzuki
CPC classification number: G06T11/60 , G06F3/0482 , G06T5/50 , G06T7/0012 , G16H30/40 , G06T2200/24 , G06T2207/30004
Abstract: A medical image display apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to: identify imaged ranges respectively corresponding to a plurality of examinations, on the basis of anatomical information from a plurality of medical images taken of an examined subject in the plurality of examinations; map the imaged ranges respectively corresponding to the plurality of examinations onto a single human body model; and cause a display unit to display a list of information about the plurality of examinations and the human body model on which the imaged ranges respectively corresponding to the plurality of examinations are mapped, so as to be kept in correspondence with each other.
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公开(公告)号：US11481957B2
公开(公告)日：2022-10-25
申请号：US16833732
申请日：2020-03-30
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Hideaki Ishii
Abstract: A medical image processing apparatus of an embodiment includes processing circuitry. The processing circuitry is configured to acquire time-series medical images including blood vessels of an examination subject, the time-series medical images being fluoroscopically captured in at least one direction at a plurality of points in time, generate a blood vessel shape model including time-series variation information about the blood vessels in an analysis region of the blood vessels on the basis of the acquired time-series medical images, and perform fluid analysis of blood flowing through the blood vessels on the basis of the generated blood vessel shape model.
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公开(公告)号：US11756673B2
公开(公告)日：2023-09-12
申请号：US16843961
申请日：2020-04-09
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Hideaki Ishii , Shigeo Kaminaga
CPC classification number: G16H30/40 , G06T7/0014 , G16H15/00 , G16H50/20
Abstract: A medical information processing apparatus of an embodiment includes processing circuitry. The processing circuitry acquires a plurality of pieces of output data respectively output from a plurality of analysis processes to which medical image data is input as input data. The processing circuitry selectively extracts, from the pieces of output data, a plurality of pieces of output data based on an extraction condition. The processing circuitry performs control to display a plurality of pieces of information corresponding to the pieces of extracted output data and a medical image related to any one piece of the information and generated from the medical image data.
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Patent Agency Ranking
公开(公告)号：US20200349708A1
公开(公告)日：2020-11-05
申请号：US16929392
申请日：2020-07-15
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Takuma IGARASHI , Satoshi Wakai , Kazumasa Arakita , Hideaki Ishii , Yasuko Fujisawa , Shigeo Kaminaga , Kenji Hirohata , Junichiro Odga
Abstract: There is provided a medical image processing apparatus which includes a first extraction unit configured to extract coronary arteries depicted in images of a plurality of time phases relating to the heart, and to extract at least one stenosed part depicted in each coronary artery; a calculation unit configured to calculate a pressure gradient of each of the extracted coronary arteries, based on tissue blood flow volumes of the coronary arteries; a second extraction unit configured to extract an ischemic region depicted in the images; and a specifying unit configured to specify a responsible blood vessel of the ischemic region by referring to a dominance map, in which each of the extracted coronary arteries and a dominance territory are associated, for the extracted ischemic region, and to specify a responsible stenosis, based on the pressure gradient corresponding to a stenosed part in the specified responsible blood vessel.
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公开(公告)号：US10542950B2
公开(公告)日：2020-01-28
申请号：US15946133
申请日：2018-04-05
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Hideaki Ishii , Yasuyuki Miyoshi , Yukari Sone
Abstract: The medical image diagnostic apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to: generate medical volume data including bones and an organ; identify, based on the volume data, the organ and an abnormal bone having an abnormal region of the bones; calculate, based on the organ and the abnormal bone of the volume data, an influence rate on the organ by the abnormal bone; and superimpose data indicating the influence rate on the image based on the volume data, thereby displaying the superimposed image on a display.
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公开(公告)号：US12112403B2
公开(公告)日：2024-10-08
申请号：US18054977
申请日：2022-11-14
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Guang Yi Ong , Hideaki Ishii , Hiroshizu Morishima , Junya Suzuki
IPC: G06T11/00 , G06F3/0354 , G06F3/0482
CPC classification number: G06T11/00 , G06F3/03543 , G06F3/0482 , G06T2200/24 , G06T2210/41
Abstract: The medical image display apparatus according to any of embodiments includes processing circuitry. The processing circuitry is configured to determine whether a mouse cursor is superimposed on a display range of interpretation-target medical image data in a display screen of a display or not. Further, the processing circuitry is configured to display, when the mouse cursor is determined to be superimposed on the display range, at least one choice of comparative medical image data corresponding to interpretation-target medical image data specified by the position of a mouse cursor in an interpretation adjacent region where the specified interpretation-target medical image data is not superimposed and is adjacent to the specified interpretation-target medical image data.
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公开(公告)号：US20220068468A1
公开(公告)日：2022-03-03
申请号：US17411473
申请日：2021-08-25
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Takuya Sakaguchi , Kazumasa Arakita , Hideaki Ishii , Takahiko Nishioka
Abstract: A medical image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to acquire a first parameter pertaining to a force at a coronary artery of a subject and a second parameter pertaining to at least one of a shape, character, and fluid resistance related to the coronary artery. The processing circuitry is configured to set, for at least either the first parameter or the second parameter, a weighting factor associated with an anatomical position of the coronary artery. The processing circuitry is configured to calculate, on the basis of the first parameter, the second parameter, and the weighting factor, an index pertaining to a risk on the subject.
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公开(公告)号：US11819314B2
公开(公告)日：2023-11-21
申请号：US16988906
申请日：2020-08-10
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Hideaki Ishii
CPC classification number: A61B5/02028 , A61B5/021 , A61B5/029 , A61B5/7282 , A61B34/10 , G16H10/40 , G16H40/60 , A61B5/7267 , A61F2/24
Abstract: A medical apparatus according to an embodiment includes a processing circuitry. The processing circuitry is configured: to receive an input of test result information including a test result of each of tests that are related to a biological valve and were carried out at two or more different times; to estimate one of a test time for a follow-up observation of the biological valve and a test time for replacing the biological valve, on the basis of a chronological change in an open/close state of the biological valve derived from the received test result information; and to output the estimated test time.
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