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公开(公告)号：US20240290012A1
公开(公告)日：2024-08-29
申请号：US18658143
申请日：2024-05-08
Applicant: Canon Medical Systems Corporation
Inventor： Hideaki ISHII , Satoshi WAKAI , Kazumasa ARAKITA , Takuma IGARASHI , Yasuko FUJISAWA , Shigeo KAMINAGA , Kenji HIROHATA , Junichiro OOGA
CPC classification number: G06T11/003 , A61B6/465 , A61B6/486 , A61B6/504 , A61B6/5217 , A61B6/5229 , G06T7/30 , G06T11/001 , A61B6/503 , G06T2207/10024 , G06T2207/10081 , G06T2207/10088 , G06T2207/10104 , G06T2207/10108 , G06T2207/30048 , G06T2207/30101
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：US20230017788A1
公开(公告)日：2023-01-19
申请号：US17939014
申请日：2022-09-07
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：US20220343563A1
公开(公告)日：2022-10-27
申请号：US17862450
申请日：2022-07-12
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：US20190221008A1
公开(公告)日：2019-07-18
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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