Hitachi, Ltd.

Hitachi-high-technologies Corporation

Terumo Kabushiki Kaisha

Hitachi High-tech Corporation

Fujifilm Healthcare Corporation

Hitachi Industry & Control Solutions, Ltd.

Hitachi Information & Control Solutions, Ltd.

Yusuke Seki

Akihiko Kandori

Daisuke Suzuki

Yuki Sakaguchi

Akira Iguchi

Mitsuru Oonuma

Mitsuhiro Nakamura

Eiji Kobayashi

Yasuhiro Kiyofuji

Shin Kokura

Mitsuru Onuma

Satoru Funaki

Toshiki Shimizu

Akihiro Onozuka

Keisuke Tanuma

Takashi Azuma

Keiji Tsukada

Akira Bando

Wataru Sasaki

Yuko Sano

Kazuo Saitoh

Yusaku Otsuka

Masakazu Ishikawa

Ryuzo Kawabata

Takumi Uezono

Masashi Suenaga

Akira Tsukamoto

Kuniomi Ogata

Naoya Mashiko

Masahiro Yamaoka

Nami Sugita

Hideaki Masuko

Masahiro Murakami

Atsushi Watanabe

Masato Kamio

Yu Iwasaki

Nobutaka Abe

Takuya Akashi

Hironori Itabashi

Yuta Sugimoto

Hiroki Kannami

Akihiro Nakano

Shoichi Ozawa

Yukiko Tahara

Yoshio Matsuoka

Takafumi Shimamoto

Mitsuru Hitachi Ltd Intell Property Gr Onuma

It is aimed to properly correct the various types of distortion without a reduction in observation throughput. The present disclosure provides a charged particle beam device that obtains an image by irradiating a specimen with a charged particle beam and includes: a deflection coil that scans the charged particle beam on the specimen; a D/A converter that converts a digital scan waveform into an analog scan waveform and outputs the analog scan waveform to the deflection coil to drive the deflection coil; and a scan waveform generation unit that generates a digital scan waveform and outputs the digital scan waveform to the D/A converter, in which the scan waveform generation unit has a basic LUT that stores parameters for correcting the digital scan waveform and includes a correction circuit that corrects a distortion characteristic of the deflection coil.

Charged particle beam device and scan waveform generation method

A non-transitory computer-readable medium storing computer program code executed by a computer processor that executes an imaging process comprising: acquiring a medical image generated based on a signal detected by a catheter insertable into a body lumen; estimating a cause of an image defect by inputting the acquired medical image to a model learned to output the cause of the image defect when the medical image in which the image defect occurs is input; and outputting introduction information for introducing a countermeasure for removing the estimated cause of the image defect.

Removing an image defect occuring in a medical image before examination based on the generation time point

A program and the like that make a catheter system relatively easy to use. The program including a non-transitory computer-readable medium (CRM) storing computer program code executed by a computer processor that executes a process comprising: acquiring a tomographic image generated using a diagnostic imaging catheter inserted into a lumen organ; and inputting the acquired tomographic image to a first model configured to output types of a plurality of objects included in the tomographic image and ranges of the respective objects in association with each other when the tomographic image is input, and outputting the types and ranges of the objects output from the first model.

Program, information processing method, method for generating learning model, method for relearning learning model, and information processing system

A dielectric microscopic observation is possible, which suppresses image flow regardless of scanning speed. There are provided a sample chamberholding a samplebetween a first insulating layeron which a conductive layerto be irradiated with a charged particle beam is laminated and a second insulating layer, an amplifierthat amplifies a potential change that occurs at an interface between the first insulating layer and the sample as the conductive layer is irradiated with the charged particle beam, and outputs the amplified result as a measurement signal, a main control unitthat converts the measurement signal from the amplifier into image data, and corrects the image data with a deconvolution filterto generate corrected image data, a display unitincluding an observation image display unitand a filter adjustment unitthat displays setting information of the deconvolution filter, and an information processing device that displays the corrected image data on the observation image display unit, and when the setting information of the deconvolution filter displayed in the filter adjustment unit is changed, adjusts the deconvolution filter according to the changed setting information.

Charged particle beam device and sample observation method

A computer is caused to perform processing of: acquiring a plurality of medical images generated based on signals detected by a catheter inserted into a lumen organ while the catheter is moving a sensor along a longitudinal direction of the lumen organ, the lumen organ including a main trunk, a side branch branched from the main trunk, and a bifurcated portion of the main trunk and the side branch; and recognizing a main trunk cross-section, a side branch cross-section, and a bifurcated portion cross-section by inputting the acquired medical images into a learning model configured to recognize the main trunk cross-section, the side branch cross-section, and the bifurcated portion cross-section.

Method for generating model by recognizing cross-section regions in units of pixels

The accuracy of an intervention site in surgery is predicted and the predicted intervention site is presented to a surgeon. A surgery support apparatus includes a prediction data generation unit that generates prediction data predicting an intervention site based on data before an intervention using an artificial intelligence algorithm. The artificial intelligence algorithm is an artificial intelligence algorithm learning an intervention site by analyzing data before the intervention and intervention site data for an object, and outputs coordinates, a region, or a shape of one point of the intervention site as prediction data. Data before the intervention used for learning of the artificial intelligence algorithm and input data input to the artificial intelligence algorithm to generate prediction data correspond to image data, a segment image, a feature point, etc. The prediction data is displayed on a display apparatus together with an image of a patient acquired in advance.

Surgery support apparatus and surgical navigation system

An object of the invention is to reduce 1/f noise and white noise at the same time by integrally reducing noise of an MR sensor and noise of an operation circuit part. A magnetoresistive sensor according to the invention includes a plurality of magnetoresistive sensor parts each having a bridge circuit in which four magnetoresistive elements are connected, and outputs of the respective magnetoresistive sensor parts are connected in parallel to one another to an input of an amplifier circuit (see FIG.).

Magnetoresistive sensor and gradiometer

A magnetic resonance measuring equipment capable of detecting a nuclear magnetic resonance signal with a higher sensitivity and a higher resolution in comparison with related magnetic resonance measuring equipment. The magnetic resonance measuring equipment modulates a nuclear magnetic resonance signal by applying a vibration (sonic wave) of a known frequency, which is higher than the frequency of the nuclear magnetic resonance signal, to an examination object, and detects the modulated signal by performing lock-in detection, which makes it possible that the magnetic resonance measuring equipment detects the nuclear magnetic resonance signal with a high sensitivity. In addition, after irradiating a local area of the object with an ultrasonic wave, and modulating the nuclear magnetic resonance signal derived from the irradiated local area, the magnetic resonance measuring equipment can detect the nuclear magnetic resonance signal with a high resolution.

Magnetic resonance measuring equipment

The present invention provides a duplexed operation processor control system that includes operation processors, an I/O device, and at least one communication path that couples the operation processors to the I/O device, and at least one communication path that couples the operation processors with each other. The duplexed operation processor control system switches over either of the operation processors to be a primary operation processor that executes a control operation for a control target, and the other to be a secondary operation processor that is in a stand-by state, and the secondary operation processor snoops control data synchronously when the primary operation processor acquires the control data from the control target.

Duplexed operation processor control system, and duplexed operation processor control method

There is provided a biomagnetic field measurement apparatus capable of carrying out exact positioning work and highly sensitive signal detection. To bring a sensor surface close to a body surface while the sensor surface and the body surface are kept parallel, a cryostat is constructed so as to be capable of oscillating and expanding and contracting. A gantry is formed by three supports. A first support is a portal support that supports the whole of the gantry. A second support is supported on the first support, and is rotatable with a first direction being the axis. A third support is supported on the second support, and is movable in the axial direction of the cryostat as viewed from the second support. The cryostat is supported on the third support, and moves integrally with the third support.

Biomagnetic field measurement apparatus capable of exact positioning

A failure is detected immediately and certainly, and continuation of processing in an unstable state is prevented. A first error detection code is generated from first information which is output as a result of execution of a predetermined program conducted by a first processor. A second error detection code is generated from second information which is output as a result of execution of the program conducted by a second processor which is configured so as to output the same computation result as that of the first processor. It is detected whether the first information is the same as the second information, and it is detected whether the first error detection code is the same as the second error detection code. Writing the first information or the second information into a main memory is controlled on the basis of a result of the detection.

Control apparatus and control method

A magnetic detection coil made of a single wire is constructed of one of superconducting and metallic materials. Four second-order differential coils are arranged so that a geometric figure obtained by connecting the respective centers of the four differential coils can form a parallelogram. By providing intersections between the four second-order differential coils, the values of magnetic flux respectively penetrating the differential coils are differentiated in three different directions.

Magnetic detection coil and apparatus for magnetic field measurement

A biomagnetic field measurement apparatus capable of easily bringing the sensor planes close to the head surface of the subject and capable of detecting cerebral magnetic fields of the left brain and the right brain simultaneously with a higher sensitivity is provided by disposing two independent cryostats holding SQUID fluxmeters in the mirror image relation to each other. The two cryostats move vertically and horizontally and rotate while interlocking with each other and maintaining the mirror image relation to each other. A gantry holding the cryostats has a function of suppressing vibration of the cryostats and has a gate shape.

Biomagnetic field measurement apparatus having a plurality of magnetic pick-up coils

The present invention provides an immunoassay technique which enables efficient detection of antigen-antibody reaction with high sensitivity by a magnetic method using magnetic particles and a SQUID magnetic sensor or sensors. A system based on the technique includes a disk-shaped sample holder which holds on a circle a plurality of sample containers for accommodating marked samples, resulting from marking of samples with magnetic particles by antigen-antibody reaction; rotating means for rotating the holder around its central shaft; magnetizing means for magnetizing the marked samples outside a magnetic shield; and a magnetic sensor for detecting, within the magnetic shield, magnetic fields generated from the marked samples which have been magnetized. By rotation of the holder, areas fixing and holding different ones of the sample containers are successively inserted into the magnetic shield, and the magnetization of the marked samples accommodated in first ones of the sample containers and the detection of magnetic fields generated from the marked samples accommodated in second ones of the sample containers are executed in parallel.

Immunoassay system and immunoassay method

A magnetic detection coil is provided, which includes a plurality of differential coils. Each differential coil is made of one of superconductors and metallic materials. The differential coils having mutually different loop directions are arranged in parallel at a spatially predetermined distance apart and mutually electrically connected in series. Each differential coil is one of a first-order differential coil and a second-order differential coil.

Magnetic detection coil and apparatus for measurement of magnetic field

Growing community of inventors

Tokyo, Japan

Yusuke Seki