公开(公告)号：US20240087119A1

公开(公告)日：2024-03-14

申请号：US18463378

申请日：2023-09-08

Applicant: Canon Medical Systems Corporation

Inventor： Hiroki TAGUCHI ,  Shinsuke TSUKAGOSHI ,  Yohei MINATOYA ,  Ryo OKUDA

IPC: G06T7/00 ,  G06T11/00 ,  G06V10/764 ,  G16H20/10 ,  G16H50/20

CPC classification number: G06T7/0012 ,  G06T11/003 ,  G06V10/764 ,  G16H20/10 ,  G16H50/20 ,  G06T2207/10104 ,  G06T2207/30096

Abstract: A medical image diagnosis system includes an imaging apparatus and processing circuitry. The imaging apparatus applies one-time or multiple-time medical imaging to a subject to which a plurality of drugs having a tissue accumulation property, which corresponds to a tissue characteristic, are administered successively or simultaneously. The processing circuitry reconstructs one or a plurality of medical images, based on one or a plurality of set of raw data acquired by the one-time or multiple-time medical imaging. The processing circuitry estimates a tissue characteristic of a target region, based on a spatial distribution of the drugs rendered on the one or the plurality of medical images. The processing circuitry displays the estimated tissue characteristic.

公开(公告)号：US20250054150A1

公开(公告)日：2025-02-13

申请号：US18795801

申请日：2024-08-06

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Hiroki TAGUCHI ,  Shinsuke TSUKAGOSHI ,  Yohei MINATOYA

IPC: G06T7/00 ,  G06T7/38

Abstract: A medical image processing apparatus includes processing circuitry that obtains 1st projection data of a 1st region with 1st dynamic data and 2nd projection data of a 2nd region with 2nd dynamic data; when the 1st and 2nd dynamic data exceed a threshold and match in magnitude of motion, extracts, from the 1st and 2nd projection dataset for an angular range at a time interval or for the magnitude, a 1st projection dataset and 2nd projection dataset, respectively; when the 1st and 2nd dynamic data exceed the threshold and differ in the magnitude, extracts the 1st projection dataset from the 1st projection data for the magnitude, and extracts the 2nd projection dataset for the same magnitude from the 2nd projection data; reconstructs 1st and 2nd volume data based on the 1st and 2nd projection datasets, respectively; and generates volume data concatenating the 1st and 2nd volume data.

公开(公告)号：US20240423560A1

公开(公告)日：2024-12-26

申请号：US18748716

申请日：2024-06-20

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Hiroaki KIJI ,  Hiroki TAGUCHI ,  Yohei MINATOYA ,  Masakazu MATSUURA

IPC: A61B6/03 ,  A61B6/00 ,  A61B6/42

Abstract: A photon counting CT apparatus of an embodiment includes processing circuitry. The processing circuitry is configured to perform first determination processing of determining spike components in a counting image generated on the basis of sum data of photon detection results for a plurality of different X-ray energy bands and second determination processing of determining ring artifacts on the basis of a plurality of energy images generated on the basis of a photon detection result for each of the plurality of different X-ray energy bands, and remove or reduce ring artifacts in the counting image on the basis of both a result of the first determination processing and a result of the second determination processing.

公开(公告)号：US20220328196A1

公开(公告)日：2022-10-13

申请号：US17658357

申请日：2022-04-07

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Akira NISHIKORI ,  Tatsuya WATANABE ,  Jun OOSHIMA ,  Yohei MINATOYA ,  Ryo OKUDA

IPC: G16H50/30 ,  G16H30/40 ,  G16H40/20 ,  G06T7/00

Abstract: A medical image diagnostic apparatus according to an embodiment includes processing circuitry and a display. The processing circuitry acquires medical images. The processing circuitry sends the medical images to a medical image processing apparatus that performs disease analysis based on the medical images. The processing circuitry receives the analysis result from the medical image processing apparatus. The display displays warning information based on the analysis result.

公开(公告)号：US20240081763A1

公开(公告)日：2024-03-14

申请号：US18463384

申请日：2023-09-08

Applicant: Canon Medical Systems Corporation

Inventor： Hiroki TAGUCHI ,  Shinsuke TSUKAGOSHI ,  Yohei MINATOYA

IPC: A61B6/00 ,  A61B6/03 ,  A61M5/20

CPC classification number: A61B6/5205 ,  A61B6/032 ,  A61B6/4241 ,  A61B6/482 ,  A61M5/2066

Abstract: According to one embodiment, a medical device operation method includes a monitoring step and an application step. In the monitoring step, a monitoring apparatus executes first CT imaging on a treatment target person into which a first drug particle with a suppressed onset of a treatment effect is introduced, and monitors an accumulation of the first drug particles in a tissue, based on spectral information acquired by the first CT imaging. In the application step, an application apparatus applies an action for exerting the treatment effect of the first drug particle to the first drug particle accumulating in the tissue, by using as a trigger an event that the accumulation of the first drug particles in the tissue satisfies an objective condition.

公开(公告)号：US20240070862A1

公开(公告)日：2024-02-29

申请号：US18499281

申请日：2023-11-01

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Hiroki TAGUCHI ,  Yohei MINATOYA

IPC: G06T7/00 ,  A61B6/00 ,  A61B6/03 ,  G06T7/10

CPC classification number: G06T7/0012 ,  A61B6/032 ,  A61B6/461 ,  A61B6/5205 ,  G06T7/10 ,  G06T2207/10081 ,  G06T2207/20081

Abstract: A medical information processing method according to an embodiment includes: acquiring an X-ray CT image (I1) and spectral information on imaging of the X-ray CT image (I1); acquiring sets of distribution data (D11, D12, and D13) on substances in the X-ray CT image by performing segmentation of the X-ray CT image (I1) according to substance; acquiring plural sets of forward projection data (P11, P12, and P13) on the respective substances by performing forward projection processes for the sets of distribution data (D11, D12, and D13) on the basis of the spectral information and attenuation coefficients for the respective substances; and generating a trained model (M1) by machine learning based on the plural sets of forward projection data (P11, P12, and P13) and raw data (R1) used in generation of the X-ray CT image (I1).

公开(公告)号：US20230404514A1

公开(公告)日：2023-12-21

申请号：US18332006

申请日：2023-06-09

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Masakazu MATSUURA ,  Takuya NEMOTO ,  Hiroki TAGUCHI ,  Yuto HAMADA ,  Yohei MINATOYA

IPC: A61B6/00 ,  G16H30/40 ,  G06N3/0464 ,  G06N3/08

CPC classification number: A61B6/5258 ,  A61B6/405 ,  A61B6/482 ,  A61B6/5205 ,  G16H30/40 ,  G06N3/0464 ,  G06N3/08

Abstract: A medical data processing method according to an embodiment includes: outputting second spectral data by inputting first spectral data related to an examined subject imaged by a spectral medical imaging apparatus to a trained model configured to generate, on the basis of the first spectral data, the second spectral data having less noise than the first spectral data and a higher resolution than the first spectral data. The first spectral data in the medical data processing method according to the embodiment corresponds to medical data obtained by performing a spectral scan on the examined subject. The trained model in the medical data processing method according to the embodiment is configured to perform a noise reducing process and a super-resolution process on the first spectral data.