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.

公开(公告)号：US20220091212A1

公开(公告)日：2022-03-24

申请号：US17391758

申请日：2021-08-02

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Hideaki KUTSUNA ,  Masahito NAMBU

IPC: G01R33/561 ,  G01R33/48 ,  G01R33/36

Abstract: An image generating apparatus according to an embodiment includes processing circuitry. The processing circuitry obtains a coil sensitivity distribution indicating a sensitivity distribution of a reception coil used for an imaging process performed on an examined subject and magnetic resonance data acquired from the imaging process that is non-Cartesian and performed in a k-space. The processing circuitry performs, on the basis of the coil sensitivity distribution, registration between the coil sensitivity distribution and a gridding sensitivity distribution indicating a distribution of gridding sensitivity related to arranging the magnetic resonance data in the k-space. The processing circuitry generates a magnetic resonance image on the basis of a result of the registration, magnetic resonance data, coil sensitivity distribution, and gridding sensitivity distribution.

公开(公告)号：US20230099712A1

公开(公告)日：2023-03-30

申请号：US17935764

申请日：2022-09-27

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Masahito NAMBU

IPC: G01R33/56 ,  G01R33/385 ,  G06T11/00

Abstract: A magnetic resonance imaging apparatus includes processing circuitry. The processing circuitry is configured to acquire a first coil sensitivity map and a second coil sensitivity map for a plurality of coils, the second coil sensitivity map being different in phase from the first coil sensitivity map; generate a first image based on the first coil sensitivity map and magnetic resonance data related to the plurality of coils; generate a second image based on the first coil sensitivity map, the second coil sensitivity map, and the first image; and generate a final image from the first image and the second image.

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.