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公开(公告)号：US11029380B2
公开(公告)日：2021-06-08
申请号：US16279613
申请日：2019-02-19
Applicant: Canon Medical Systems Corporation
Inventor： Shuhei Nitta , Shigehide Kuhara , Tomoyuki Takeguchi , Taichiro Shiodera , Yukinobu Sakata
Abstract: A magnetic resonance imaging apparatus according to an embodiment includes a processor and a memory. The memory stores processor-executable instructions that cause the processor to detect cross-sectional positions of a plurality of cross-sectional images to be acquired in an imaging scan from volume data; acquire the cross-sectional images in sequence based on the cross-sectional positions by executing the imaging scan; and after the first cross-sectional image is acquired in the imaging scan, generate a display image, and display the display image on a display, the display image being an image in which a cross-sectional position of a second cross-sectional image which is detected from the volume data is superimposed on the first cross-sectional image, the second cross-sectional image being a cross-sectional image before being acquired and intersecting with the first cross-sectional image.
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公开(公告)号：US10823800B2
公开(公告)日：2020-11-03
申请号：US16411959
申请日：2019-05-14
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Shuhei Nitta , Tomoyuki Takeguchi , Yurika Ogawa , Kensuke Shinoda , Takuya Fujimaki , Syuhei Takemoto , Shigehide Kuhara
IPC: G01R33/483 , A61B8/00 , G01R33/54 , G16H30/20
Abstract: A magnetic resonance imaging apparatus according to an embodiment includes processing circuitry. The processing circuitry generates a plurality of cross-sectional images for setting a sectional position to be collected in main imaging based on a characteristic portion of a target detected in three-dimensional data. The processing circuitry lists the cross-sectional images on a display and superimposes a mark corresponding to the characteristic portion on at least one of the cross-sectional images. The processing circuitry receives a setting operation to determine the sectional position. The processing circuitry causes, when the mark is selected in the setting operation, a cross-sectional image to be emphasized a sectional position of which is defined using the characteristic portion corresponding to the mark among the listed cross-sectional images. The processing circuitry performs main imaging based on the sectional position after the setting operation.
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公开(公告)号：US20200033273A1
公开(公告)日：2020-01-30
申请号：US15929150
申请日：2019-10-01
Applicant: Canon Medical Systems Corporation
Inventor： Kenta Moriyasu , Taichiro Shiodera , Shuhei Nitta , Tomoyuki Takeguchi , Hidenori Takeshima , Toshiyuki Ono , Takashi Ida , Hiroaki Nakai
IPC: G01N23/087 , A61B6/03 , A61B6/00 , G01N23/046 , G01T1/29
Abstract: A photon counting X-ray CT apparatus according to an embodiment includes: data acquiring circuitry, and processing circuitry. The data acquiring circuitry is configured to allocate energy measured by signals output from a photon counting detector in response to incidence of X-ray photons to any of a plurality of first energy bins so as to acquire a first data group as count data of each of the first energy bins. The processing circuitry is configured to determine a plurality of second energy bins obtained by grouping the first energy bins in accordance with a decomposition target material that is a material to be decomposed in a imaging region, allocate the first data group to any of the second energy bins so as to generate a second data group, and use the second data group to generate an image representing a distribution of the decomposition target material.
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公开(公告)号：US11886978B2
公开(公告)日：2024-01-30
申请号：US18084863
申请日：2022-12-20
Inventor： Kenzo Isogawa , Tomoyuki Takeguchi
CPC classification number: G06N3/048 , G06N3/045 , G06N3/084 , G06T5/002 , G16H30/40 , G06T2207/20084 , G06T2207/30004
Abstract: In one embodiment, an image processing system includes a memory and processing circuitry. The memory is configured to store a predetermined program. The processing circuitry is configured, by executing the predetermined program, to perform processing on an input image by exploiting a neural network having an input layer, an output layer, and an intermediate layer provided between the input layer and the output layer, the input image being inputted to the input layer, and adjust an internal parameter based on data related to the input image, while performing the processing on the input image after training of the neural network, the internal parameter being at least one internal parameter of at least one node included in the intermediate layer, and the input parameter having been calculated by the training of the neural network.
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公开(公告)号：US10451568B2
公开(公告)日：2019-10-22
申请号：US14832332
申请日：2015-08-21
Applicant: Canon Medical Systems Corporation
Inventor： Kenta Moriyasu , Taichiro Shiodera , Shuhei Nitta , Tomoyuki Takeguchi , Hidenori Takeshima , Toshiyuki Ono , Takashi Ida , Hiroaki Nakai
IPC: G01N23/04 , G01N23/087 , G01T1/17 , G01T1/29 , G01N23/046 , A61B6/03 , A61B6/00 , A61B6/06
Abstract: A photon counting X-ray CT apparatus according to an embodiment includes: data acquiring circuitry, and processing circuitry. The data acquiring circuitry is configured to allocate energy measured by signals output from a photon counting detector in response to incidence of X-ray photons to any of a plurality of first energy bins so as to acquire a first data group as count data of each of the first energy bins. The processing circuitry is configured to determine a plurality of second energy bins obtained by grouping the first energy bins in accordance with a decomposition target material that is a material to be decomposed in a imaging region, allocate the first data group to any of the second energy bins so as to generate a second data group, and use the second data group to generate an image representing a distribution of the decomposition target material.
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Patent Agency Ranking
公开(公告)号：US20180349759A1
公开(公告)日：2018-12-06
申请号：US15994161
申请日：2018-05-31
Inventor： Kenzo Isogawa , Tomoyuki Takeguchi
CPC classification number: G06T5/002 , G06T2207/20084 , G06T2207/30004
Abstract: In one embodiment, an image processing system includes a memory and processing circuitry. The memory is configured to store a predetermined program. The processing circuitry is configured, by executing the predetermined program, to perform processing on an input image by exploiting a neural network having an input layer, an output layer, and an intermediate layer provided between the input layer and the output layer, the input image being inputted to the input layer, and adjust an internal parameter based on data related to the input image, while performing the processing on the input image after training of the neural network, the internal parameter being at least one internal parameter of at least one node included in the intermediate layer, and the input parameter having been calculated by the training of the neural network.
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公开(公告)号：US11574170B2
公开(公告)日：2023-02-07
申请号：US15994161
申请日：2018-05-31
Inventor： Kenzo Isogawa , Tomoyuki Takeguchi
Abstract: In one embodiment, an image processing system includes a memory and processing circuitry. The memory is configured to store a predetermined program. The processing circuitry is configured, by executing the predetermined program, to perform processing on an input image by exploiting a neural network having an input layer, an output layer, and an intermediate layer provided between the input layer and the output layer, the input image being inputted to the input layer, and adjust an internal parameter based on data related to the input image, while performing the processing on the input image after training of the neural network, the internal parameter being at least one internal parameter of at least one node included in the intermediate layer, and the input parameter having been calculated by the training of the neural network.
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公开(公告)号：US11327031B2
公开(公告)日：2022-05-10
申请号：US15929150
申请日：2019-10-01
Applicant: Canon Medical Systems Corporation
Inventor： Kenta Moriyasu , Taichiro Shiodera , Shuhei Nitta , Tomoyuki Takeguchi , Hidenori Takeshima , Toshiyuki Ono , Takashi Ida , Hiroaki Nakai
IPC: G01N23/087 , G01T1/29 , G01N23/046 , A61B6/00 , A61B6/03 , A61B6/06
Abstract: A photon counting X-ray CT apparatus according to an embodiment includes: data acquiring circuitry, and processing circuitry. The data acquiring circuitry is configured to allocate energy measured by signals output from a photon counting detector in response to incidence of X-ray photons to any of a plurality of first energy bins so as to acquire a first data group as count data of each of the first energy bins. The processing circuitry is configured to determine a plurality of second energy bins obtained by grouping the first energy bins in accordance with a decomposition target material that is a material to be decomposed in a imaging region, allocate the first data group to any of the second energy bins so as to generate a second data group, and use the second data group to generate an image representing a distribution of the decomposition target material.
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公开(公告)号：US10775469B2
公开(公告)日：2020-09-15
申请号：US16386754
申请日：2019-04-17
Applicant: Canon Medical Systems Corporation
Inventor： Tomoya Tsuruyama , Shuhei Nitta , Tomoyuki Takeguchi
IPC: G01R33/56 , G01R33/565 , G01R33/58
Abstract: According to one embodiment, a magnetic resonance imaging apparatus includes processing circuitry. The processing circuitry estimates transmission inhomogeneity caused in a transmit RF magnetic field from a first image based on a first signal received by a whole-body coil, and estimates reception inhomogeneity caused in a receive RF magnetic field from the first image and a second image based on a second signal received by a surface coil. The processing circuitry generates a third image, having a resolution higher than a resolution of the first image and a resolution of the second image, based on a third signal received by the surface coil. The processing circuitry corrects the third image by using the estimated transmission inhomogeneity and reception inhomogeneity.
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公开(公告)号：US20190004134A1
公开(公告)日：2019-01-03
申请号：US16022089
申请日：2018-06-28
Applicant: Canon Medical Systems Corporation
Inventor： Yuko HARA , Kanako Saito , Taichiro Shiodera , Tomoyuki Takeguchi , Takashi Shigeta , Masao Yui , Hiroshi Kusahara , Yuki Takai , Yoshimori Kasai
Abstract: A magnetic resonance imaging apparatus according to an embodiment includes sequence controlling circuitry and processing circuitry. The sequence controlling circuitry acquires first k-space data in units of a plurality of segments while arranging the plurality of segments to overlap one another in a read-out direction, the first k-space being divided into the plurality of segments in the read-out direction. The processing circuitry calculates a weighting coefficient on a basis of information about a gradient magnetic field related to the acquisition and generates second k-space data on a basis of the plurality of segments in the first k-space data and the weighting coefficient.
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