公开(公告)号：US11543480B2

公开(公告)日：2023-01-03

申请号：US17391758

申请日：2021-08-02

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Hideaki Kutsuna ,  Masahito Nambu

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

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：US11669938B2

公开(公告)日：2023-06-06

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

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.

公开(公告)号：US12019132B2

公开(公告)日：2024-06-25

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

CPC classification number: G01R33/56 ,  G01R33/385 ,  G06T11/005 ,  G06T11/006 ,  G06T11/008

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：US12229925B2

公开(公告)日：2025-02-18

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: G06T5/70 ,  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：US11536791B1

公开(公告)日：2022-12-27

申请号：US17455255

申请日：2021-11-17

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Masahito Nambu ,  Samir Dev Sharma ,  Anuj Sharma

IPC: G01R33/565 ,  G01R33/56

Abstract: A magnetic resonance imaging apparatus according to an embodiment includes a processing circuit. The processing circuit acquires a plurality of echo signals not to be encoded corresponding to a plurality of respective shots about acquisition of a plurality of echo signals having been encoded by magnetic resonance imaging for a subject, compares the echo signals not to be encoded with each other about the shots, and identifies a shot to be removed about generation of a magnetic resonance image about the subject out of the shots based on a comparison result of the echo signals not to be encoded.