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1.发明申请公开(公告)号：US20230116931A1
公开(公告)日：2023-04-20
申请号：US18084613
申请日：2022-12-20
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Yuichi YAMASHITA , Kazuto NAKABAYASHI , Hitoshi KANAZAWA , Kazuya OKAMOTO , Hiroshi TAKAI , Nobuyuki KONUMA , Kensuke SHINODA
Abstract: According to one embodiment, a medical information processing apparatus includes processing circuitry configured to derive an index value with respect to noise included in data associated with magnetic resonance signals collected by each of a plurality of reception coils, adjust a degree to which noise is removed from the data associated with the magnetic resonance signals based on the derived index value, remove noise from the data associated with the magnetic resonance signals based on the adjusted degree, and perform compositing of the data associated with the magnetic resonance signals from which noise has been removed.
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公开(公告)号：US20200327645A1
公开(公告)日：2020-10-15
申请号：US16845176
申请日：2020-04-10
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Hiroshi TAKAI , Kensuke SHINODA , Nobuyuki KONUMA , Masahito NAMBU
IPC: G06T5/00 , G01R33/56 , G01R33/561
Abstract: A medical information processing apparatus according to an embodiment includes processing circuitry. The processing circuitry calculates noise intensity from first data acquired during a first scan. The processing circuitry calculates a denoising intensity used for a denoising process based on the noise intensity and the difference between an imaging condition for the first scan and an imaging condition for a second scan, the denoising process being applied to second data obtained by the second scan.
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3.发明申请公开(公告)号：US20200241098A1
公开(公告)日：2020-07-30
申请号：US16774116
申请日：2020-01-28
Applicant: Canon Medical Systems Corporation
Inventor： Kensuke SHINODA , Kazuto NAKABAYASHI , Hitoshi KANAZAWA , Kazuya OKAMOTO , Hiroshi TAKAI , Nobuyuki KONUMA , Yuichi YAMASHITA
Abstract: A medical image processing apparatus of embodiments includes processing circuitry. The processing circuitry is configured to acquire a data and a g-factor map. The data is generated as a result of a reception by an RF coil. The processing circuitry is configured to determine strength of denoise performed on the data on the basis of the g-factor map and perform the denoise on the data.
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Patent Agency Ranking
公开(公告)号：US20230260088A1
公开(公告)日：2023-08-17
申请号：US18304012
申请日：2023-04-20
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Hiroshi TAKAI , Kensuke SHINODA , Nobuyuki KONUMA , Masahito NAMBU
IPC: G06T5/00 , G01R33/56 , G01R33/561
CPC classification number: G06T5/002 , G01R33/5608 , G01R33/5611 , G06T2207/10088
Abstract: A medical information processing apparatus according to an embodiment includes processing circuitry. The processing circuitry calculates noise intensity from first data acquired during a first scan. The processing circuitry calculates a denoising intensity used for a denoising process based on the noise intensity and the difference between an imaging condition for the first scan and an imaging condition for a second scan, the denoising process being applied to second data obtained by the second scan.
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公开(公告)号：US20220260659A1
公开(公告)日：2022-08-18
申请号：US17734351
申请日：2022-05-02
Applicant: CANON MEDICAL SYSTEMS CORPORATION
Inventor： Kensuke SHINODA , Kazuto NAKABAYASHI , Hitoshi KANAZAWA , Kazuya OKAMOTO , Hiroshi TAKAI , Nobuyuki KONUMA , Yuichi YAMASHITA
Abstract: A medical image processing apparatus of embodiments includes processing circuitry. The processing circuitry is configured to acquire a data and a g-factor map. The data is generated as a result of a reception by an RF coil. The processing circuitry is configured to determine strength of denoise performed on the data on the basis of the g-factor map and perform the denoise on the data.
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公开(公告)号：US20200041600A1
公开(公告)日：2020-02-06
申请号：US16533080
申请日：2019-08-06
Applicant: Canon Medical Systems Corporation
Inventor： Shuhei NITTA , Naho IMAMURA , Takahiro OHMURE , Hiroshi TAKAI , Nobuyasu ICHINOSE , Yoshimori KASSAI
IPC: G01R33/565 , G01R33/561 , G01R33/563 , G01R33/56 , G01R33/421
Abstract: According to one embodiment, a magnetic resonance imaging apparatus includes processing circuitry. The processing circuitry calculates a static magnetic field correction amount based on a static magnetic field distribution of a first imaging range narrower than a second imaging range. The processing circuitry collects a magnetic resonance (MR) image of the second imaging range under a static magnetic field which is corrected based on the static magnetic field correction amount. The processing circuitry corrects distortion of the collected the MR image.
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公开(公告)号：US20200041593A1
公开(公告)日：2020-02-06
申请号：US16532673
申请日：2019-08-06
Applicant: Canon Medical Systems Corporation
Inventor： Shuhei NITTA , Naho IMAMURA , Takahiro OHMURE , Hiroshi TAKAI , Nobuyasu ICHINOSE , Yoshimori KASSAI
Abstract: According to one embodiment, a magnetic resonance imaging apparatus includes processing circuitry. The processing circuitry acquires a first resonance frequency distribution of a first tissue and a second resonance frequency distribution of a second tissue which is different from the first tissue. The processing circuitry calculates a center frequency of a frequency-selective pulse that suppresses or emphasizes either one of the first tissue and the second tissue in accordance with the first and second resonance frequency distributions. The processing circuitry collects a magnetic resonance signal after the frequency-selective pulse is applied at the calculated center frequency.
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公开(公告)号：US20190113588A1
公开(公告)日：2019-04-18
申请号：US16147954
申请日：2018-10-01
Applicant: Canon Medical Systems Corporation
Inventor： Takahiro TAMURA , Hiroshi TAKAI , Nobuyuki KONUMA
IPC: G01R33/483 , G01R33/54 , G01R33/56
Abstract: A magnetic resonance imaging apparatus according to the present embodiment includes sequence control circuitry. The sequence control circuitry collect first MR data in a first cardiac cycle by excitation of a first region including a first slice, and collects reference data used for phase correction of second MR data on a second slice not included in the first region before and after the collection of the first MR data in the first cardiac cycle.
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