公开(公告)号：US20230342914A1

公开(公告)日：2023-10-26

申请号：US17726070

申请日：2022-04-21

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Karthikayan BALAKRISHNAN ,  Kent C. BURR ,  Manabu TESHIGAWARA ,  Jeffrey KOLTHAMMER ,  Wenyuan QI

IPC: G06T7/00 ,  G06T7/20 ,  G06T11/00

CPC classification number: G06T7/0012 ,  G06T7/20 ,  G06T11/008 ,  G06T2207/10104 ,  G06T2207/20084 ,  G06T2207/10048

Abstract: A method of generating an image, including: receiving, via a monitoring device, time-dependent data corresponding to a patient parameter; obtaining emission data representing radiation detected during a medical imaging scan; identifying time frames during the medical imaging scan to exclude from the obtained emission data, the identified time frames corresponding to a stressed emotional state for the patient based on the patient parameter; modifying the obtained emission data to exclude the emission data corresponding to the time frames corresponding to the stressed emotional state; and generating an emotional-state-corrected image based on the modified emission data excluding the emission data corresponding to the time frames corresponding to the stressed emotional state.

公开(公告)号：US20220283326A1

公开(公告)日：2022-09-08

申请号：US17653533

申请日：2022-03-04

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Manabu TESHIGAWARA

IPC: G01T7/00 ,  G01T1/29

Abstract: A Positron Emission Tomography (PET) apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to obtain information about a defective channel of a PET detector at a second point in time later than a first point in time corresponding to a first sensitivity map that is a sensitivity map of the PET detector corresponding to the first point in time and being stored in a storage unit. The processing circuitry is configured to generate a second sensitivity map that is a sensitivity map of the PET detector corresponding to the second point in time, on the basis of the information about the defective channel.

公开(公告)号：US20240119647A1

公开(公告)日：2024-04-11

申请号：US18477607

申请日：2023-09-29

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Go KAWATA ,  Manabu TESHIGAWARA

IPC: G06T11/00 ,  A61B6/03 ,  G01T1/20 ,  G01T1/202

CPC classification number: G06T11/006 ,  A61B6/037 ,  G01T1/2018 ,  G01T1/202 ,  G06T2211/40

Abstract: A nuclear medicine diagnosis apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured: to obtain first photon number information detected by a first detector and second photon number information detected by a second detector different from the first detector; to calculate a first light emission probability model corresponding to the first detector on the basis of the first photon number information and a second light emission probability model corresponding to the second detector on the basis of the second photon number information; and to specify a probability distribution model related to a detection time difference along a Line Of Response (LOR) defined by the first detector and the second detector, on the basis of the first light emission probability model and the second light emission probability model.

公开(公告)号：US20230277072A1

公开(公告)日：2023-09-07

申请号：US18170726

申请日：2023-02-17

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Manabu TESHIGAWARA

IPC: A61B5/021 ,  A61B5/346 ,  G06T11/00 ,  G06T7/00

CPC classification number: A61B5/02125 ,  A61B5/346 ,  G06T11/005 ,  G06T7/0012 ,  G06T2207/30048

Abstract: A medical image diagnosis apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured: to obtain scan data generated by scanning an examined subject; to obtain pulse wave information of the examined subject, along with the scan; and to perform image reconstruction corresponding to electrocardiogram synchronization of the examined subject, by using the pulse wave information and the scan data.

公开(公告)号：US20230065542A1

公开(公告)日：2023-03-02

申请号：US17896250

申请日：2022-08-26

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Manabu TESHIGAWARA ,  Ryo OKUDA

IPC: G06T7/00 ,  G06T5/00 ,  G06V10/22

Abstract: A nuclear medicine diagnosis apparatus according to an embodiment includes a processing circuit. The processing circuit is configured to obtain nuclear medicine data; to time-divide the nuclear medicine data into at least first nuclear medicine data and second nuclear medicine data; and to identify a biological accumulation region, on the basis of a temporal change in data values included in the first nuclear medicine data and the second nuclear medicine data.

公开(公告)号：US20220319068A1

公开(公告)日：2022-10-06

申请号：US17656957

申请日：2022-03-29

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Manabu TESHIGAWARA

IPC: G06T11/00 ,  G06T7/00 ,  G06T7/11 ,  A61B6/03 ,  A61B6/00

Abstract: A nuclear medicine diagnosis apparatus according to an embodiment includes a processing circuit. The processing circuit is configured: to obtain coincidence data including a direct incidence event to a gamma ray detector and a scattering event in a subject; to obtain an electron density function of the subject and geometric information of the gamma ray detector; to estimate a first probability value corresponding to the direct incidence event in the subject and a second probability value corresponding to the scattering event, based on one or both of the electron density function and the geometric information; and to reconstruct a Positron Emission Tomography (PET) image based on the first probability value, the second probability value, and the coincidence data. The processing circuit is configured to reconstruct the PET image based on a system matrix that is based on the first probability value and the second probability value.

公开(公告)号：US20220309655A1

公开(公告)日：2022-09-29

申请号：US17656276

申请日：2022-03-24

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Manabu TESHIGAWARA

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

Abstract: A medical image processing apparatus according to an embodiment is a medical image processing apparatus that performs processing using a trained model to generate a first output medical image by subjecting a first input medical image to predetermined processing, and includes a processing circuit. The processing circuit generates a plurality of second output medical images for a second input medical image by randomly switching ON/OFF a connection of a plurality of neurons included in the trained model.

公开(公告)号：US20200005495A1

公开(公告)日：2020-01-02

申请号：US16451207

申请日：2019-06-25

Applicant: Canon Medical Systems Corporation

Inventor： Manabu TESHIGAWARA ,  Takahiro YODA ,  Ryo OKUDA ,  Hiroki TAWARA

IPC: G06T11/00 ,  G16H30/40 ,  G16H50/20 ,  A61B5/00 ,  A61B6/00

Abstract: According to one embodiment, a medical information processing apparatus includes processing circuitry. The processing circuitry is configured to receive data acquired by scan for an object, and output a reconstructed image data based on the data and a trained model that accepts the data as input data and outputs the reconstructed image data corresponding to the data. The trained model is trained by learning using raw data generated based on a numerical phantom and the numerical phantom.