公开(公告)号：US20240382144A1

公开(公告)日：2024-11-21

申请号：US18655347

申请日：2024-05-06

Applicant: Ryoji HIRANO ,  Miyako ASAI ,  Masayuki HIRATA

Inventor： Ryoji HIRANO ,  Miyako ASAI ,  Masayuki HIRATA

IPC: A61B5/00 ,  A61B5/245 ,  A61B5/372

Abstract: A waveform generation identifying method includes: acquiring waveform data of a biosignal measured by a plurality of sensors; calculating distribution information indicating a distribution of values of the biosignal based on waveform data at a time point when characteristic waveform information of Interictal Epileptiform Discharge (IED) manifests, among the acquired waveform data; and giving, as an input, the distribution information calculated at the calculating, to a model which has been trained using, as teaching data, information obtained by adding information regarding a sensor selected in an analysis, to the distribution information indicating the distribution of the values of the biosignal, to obtain, as an output, a selection region indicating a dipole pattern region, and identifying a sensor constituting the dipole pattern region based on the selection region.

公开(公告)号：US20240382128A1

公开(公告)日：2024-11-21

申请号：US18661808

申请日：2024-05-13

Applicant: Kazuya NIYAGAWA ,  Miyako ASAI ,  Masayuki HIRATA

Inventor： Kazuya NIYAGAWA ,  Miyako ASAI ,  Masayuki HIRATA

IPC: A61B5/243

Abstract: A biological signal analyzing apparatus includes an acquisition unit, a detection unit, and a search unit. The acquisition unit is configured to acquire waveform data of biological signals measured by a plurality of sensors. The detection unit is configured to detect a time at which characteristic waveform information about an interictal epileptiform discharge (IED) appears in the waveform data acquired by the acquisition unit. The search unit is configured to search for an onset time at which a signal is generated from a lesion in a brain within a predetermined search range based on the time detected by the detection unit in the waveform data.

公开(公告)号：US11712189B2

公开(公告)日：2023-08-01

申请号：US17078103

申请日：2020-10-23

Applicant: Ryoji Hirano ,  Masayuki Hirata ,  Toshiharu Nakashima ,  Miyako Asai

Inventor： Ryoji Hirano ,  Masayuki Hirata ,  Toshiharu Nakashima ,  Miyako Asai

IPC: A61B5/00 ,  G16H30/40 ,  A61B5/245 ,  A61B5/369 ,  A61B5/30 ,  G16H50/30 ,  A61B5/316

CPC classification number: A61B5/30 ,  A61B5/245 ,  A61B5/316 ,  A61B5/369 ,  A61B5/7203 ,  A61B5/743 ,  A61B5/7425 ,  G16H30/40 ,  G16H50/30

Abstract: A dipole group quantification method includes quantitating a dipole group that are sources of signals based on positions of dipoles.

公开(公告)号：US20230034939A1

公开(公告)日：2023-02-02

申请号：US17868798

申请日：2022-07-20

Applicant: Miyako ASAI

Inventor： Miyako ASAI

IPC: G06K9/00 ,  G01R13/02

Abstract: An information processing apparatus includes an extraction unit, a determination unit, a display control unit, and a display unit. The extraction unit is configured to extract, by predetermined pattern matching, candidate peaks in a certain arbitrary period of time from among at least one or more pieces of waveform data. The determination unit is configured to determine, from among the candidate peaks of the waveform data, a single peak based on a score related to the pattern matching. The display control unit is configured to output display information for displaying a position of the peak. The display unit is configured to display the display information.

公开(公告)号：US20240386301A1

公开(公告)日：2024-11-21

申请号：US18663526

申请日：2024-05-14

Applicant: Miyako ASAI ,  Ryoji HIRANO ,  Masayuki HIRATA

Inventor： Miyako ASAI ,  Ryoji HIRANO ,  Masayuki HIRATA

IPC: G06N7/01 ,  A61B5/00

Abstract: A waveform generation identifying method including: acquiring waveform data of biological signals measured by a plurality of sensors; calculating probability information of appearance of IEDs (interictal epileptiform discharges) from a deep learning model trained using the waveform data with labels indicating whether the characteristic waveform information appears or not; and first extracting a time and a sensor at which the characteristic waveform information appears in the waveform data, based on the probability information. The calculating includes: second extracting a feature map indicating waveform data characteristics from the waveform data; generating an attention map indicating an important region in IED recognition, from the feature map; and identifying the probability information by inputting information obtained by multiplying the feature map by the attention map.

公开(公告)号：US12066463B2

公开(公告)日：2024-08-20

申请号：US17868798

申请日：2022-07-20

Applicant: Miyako Asai

Inventor： Miyako Asai

IPC: G01R13/02

CPC classification number: G01R13/029 ,  G06F2218/10 ,  G06F2218/14

Abstract: An information processing apparatus includes an extraction unit, a determination unit, a display control unit, and a display unit. The extraction unit is configured to extract, by predetermined pattern matching, candidate peaks in a certain arbitrary period of time from among at least one or more pieces of waveform data. The determination unit is configured to determine, from among the candidate peaks of the waveform data, a single peak based on a score related to the pattern matching. The display control unit is configured to output display information for displaying a position of the peak. The display unit is configured to display the display information.

公开(公告)号：US20240306978A1

公开(公告)日：2024-09-19

申请号：US18598434

申请日：2024-03-07

Applicant: Miyako ASAI ,  Nobukazu NAKASATO ,  Akitake KANNO

Inventor： Miyako ASAI ,  Nobukazu NAKASATO ,  Akitake KANNO

IPC: A61B5/00 ,  A61B5/245 ,  A61B5/372

CPC classification number: A61B5/4094 ,  A61B5/245 ,  A61B5/372

Abstract: A current source estimation time determination method includes: determining an analysis interval in which a characteristic waveform is obtained with respect to one or more pieces of waveform data acquired by a sensor; estimating a current source with respect to a signal in the analysis interval determined at the determining; detecting a continuous movement interval in which the current source continuously moves in the analysis interval, using coordinates of the current source estimated at the estimating; and determining a single current source estimation time from the continuous movement interval detected at the detecting.