Kabushiki Kaisha Toshiba

Toshiba Energy Systems & Solutions Corporation

National Institutes for Quantum and Radiological Science and Technology

National Institutes for Quantum Science and Technology

National Institute of Radiological Sciences

Ryusuke Hirai

Yukinobu Sakata

Yasunori Taguchi

Shinichiro Mori

Takeshi Mita

Keiko Okaya

Kyoka Sugiura

Akiyuki Tanizawa

Nao Mishima

Kenichi Shimoyama

Fumi Maruyama

Tomoyuki Takeguchi

Koki Yanagawa

Noboru Yamaguchi

Masahiro Baba

Goh Itoh

Yasushi Iseki

Shinya Fukushima

Shinichiro Koto

Takashi Ida

Hidenori Takeshima

Wataru Watanabe

Saori Asaka

Wataru Asano

Kenzo Isogawa

Tsuyoshi Yamada

Tomoya Okazaki

Yasutoyo Takeyama

Atsushi Yaguchi

Yasunori Arai

Kenichi Karasawa

According to an embodiment, a medical image processing device includes a first image acquirer, a second image acquirer, a direction acquirer, and a movement amount calculator. The first image acquirer acquires a three-dimensional first image obtained by photographing the inside of a body of a patient. The second image acquirer acquires a three-dimensional second image of the inside of the body of the patient imaged at a timing different from that of the first image. The direction acquirer acquires information about an irradiation direction of radiation to the patient in a treatment room. The movement amount calculator outputs a movement amount signal indicating the amount of movement of the second image to be moved to align the position of the patient shown in the second image with the position of the patient shown in the first image based on the path of the radiation set in the first image and the information about the irradiation direction.

Medical image processing device, treatment system, medical image processing method, and storage medium

A medical image processing device of an embodiment includes first and second image acquirers, a generator, and a calculator. The first image acquirer acquires a first fluoroscopic image of a patient. The second image acquirer acquires a second fluoroscopic image according to radiation of the patient at a time point different from that of acquisition of the first image using a detector. The generator generates a reconstructed image by reproducing the second image from the first image virtually arranged in a three-dimensional space on the basis of a position of the detector in the three-dimensional space. The calculator obtains a suitable position on the first image in the three-dimensional space on the basis of a degree of similarity between the second image and the reconstructed image. The generator generates the reconstructed image for use in the calculator and has a range larger than a range corresponding to the second image.

Medical image processing device, storage medium, medical device, and treatment system

A medical image processing device of an embodiment includes a comparator and a position determination region determiner. The comparator compares a first image obtained by photographing a patient with a comparative image which is an image used in previous radiation treatment and in which a valid region used in position alignment in the radiation treatment is designated. The position determination region determiner determines a position determination region similar to the valid region included within the first image on the basis of a comparison result of the comparator.

According to one embodiment, a defect classification apparatus includes a processor. The processor acquires a first design image which is an image based on design data created by design software and relates to a first inspection target, and acquires a first real image which is captured by imaging the first inspection target produced based on the design data. The processor converts the first design image to a reference image represented by using a second real image captured by imaging a second inspection target without a defect. The processor calculates a reliability of the reference image. The processor detects a defect in the first inspection target by comparing the reference image and the first real image and classifies the defect, based on the reliability.

Defect classification apparatus, method and program

A medical image processing device includes a region-of-interest acquirer, a treatment plan acquirer, a degree-of-influence calculator, and a display controller. The region-of-interest acquirer is configured to acquire a partial region within a body of a patient as a region of interest. The treatment plan acquirer is configured to acquire treatment plan information determined in a planning stage of radiation treatment to be performed on the patient. The degree-of-influence calculator is configured to calculate a degree of influence representing an influence on the region of interest up to a range until radiation with which the patient is irradiated reaches a target portion to be treated within the body of the patient. The display controller is configured to generate a display image in which information regarding the degree of influence is superimposed on a current fluoroscopic image of the patient and causes a display to display the display image.

Medical image processing device, treatment system, and storage medium

According to one embodiment, a defect inspection apparatus includes a storage and a processor. The storage stores dictionary in which a first design image generated by software is associated with a first real image corresponding to the first design image. The processor acquires a second design image generated by the software. The processor searches for a similar first design image similar to the second design image. The processor generates a reference image that is a pseudo real image of a second inspection object, based on the second design data and free of defect, by using the first real image associated with the similar first design image. The first design image includes information of an image area wider than the first real image.

Defect inspection apparatus, method and program

A treatment system of embodiments includes an imaging system including one or more radiation sources and a plurality of detectors, a first acquirer, a second acquirer, a first deriver, a second deriver, and a calibrator. The radiation sources radiate radiation to an object in a plurality of different directions. The plurality of detectors detect the radiation at different positions. The first acquirer acquires images based on the radiation. The second acquirer acquires position information of a first imaging device in a three-dimensional space. The first deriver derives the position of the object in the images. The second deriver derives the position of a second imaging device in the three-dimensional space based on the position of the object in the images, the position of the first imaging device, and the like. The calibrator performs calibration of the imaging system based on a derivation result of the second deriver.

Treatment system, calibration method, and storage medium

A medical image processing device includes a first position acquirer, a first converter, a first likelihood image generator, and a learner. The first position acquirer is configured to acquire, as first positions, target positions in plural first images. The first converter is configured to convert the first positions to second positions by expanding movement in a second direction intersecting a first direction based on movement over time of the first positions. The first likelihood image generator is configured to generate a first likelihood image showing a distribution of likelihood of the second positions. The learner is configured to output a model using the plural first images and the first likelihood image as training data, and upon receiving part or all of a transparent image, derives a second likelihood image showing a distribution of likelihood indicating probability of the part or all of the transparent image corresponding to the second positions.

Medical image processing device, medical image processing method, and storage medium

A defect inspection device includes at least one memory storing instructions and at least one processor. The at least one processor is configured to execute the instructions to acquire a first image of an inspection target created in a first creation method, acquire a second image obtained by photographing the inspection target, extract index data similar to the acquired first image with reference to a database, the index data being a third image created in the first creation method or a feature quantity obtained by the third image, the database including the index data associated with correct data that is used as a comparison target of the index data and is an image determined not to be defective in previous inspection, acquire the correct data associated with the extracted index data in the database, generate a reference image on the basis of the acquired correct data, and estimate a pixel associated with a defective position on the inspection target photographed in the second image by comparing the reference image with the second image.

Defect inspection device, defect inspection method, and storage medium

A medical apparatus includes an acquirer, an associator, and a display controller. The acquirer acquires information indicating a respiratory waveform of an object and acquires fluoroscopic images of the object captured in time series. The associator associates a tracking value which fluctuates according to a respiratory phase of the object, based on the time-series fluoroscopic images. The display controller causes a display to display the respiratory waveform and a waveform of the tracking value in a comparable form.

Medical apparatus and method

An object positioning apparatus comprising: a radiographic image input interface configured to acquire a radiographic image that is generated by causing a fluoroscopic imaging apparatus to image an object and includes a first region and a second region, the first region depicting an index region for positioning of the object, the second region depicting a non-index region other than the index region; and a positioning processor configured to perform the positioning of the object by performing matching processing between a previously generated reference image and the first region that is specified from the radiographic image based on three-dimensional model information of the non-index region.

Object positioning apparatus, object positioning method, object positioning program, and radiation therapy system

A medical apparatus according to an embodiment includes an acquirer and a selector. The acquirer is configured to acquire fluoroscopic images of an object captured in time series. The selector is configured to select reference images which include fluoroscopic images corresponding to a maximum exhalation position and a maximum inhalation position of the object from the plurality of fluoroscopic images acquired by the acquirer.

A medical apparatus according to an embodiment includes an acquirer, a corrector, an identifier, and an output controller. The acquirer is configured to acquire a fluoroscopic image of an object from an imager. The corrector is configured to correct an image of one or more predetermined regions used for identifying a target position of the object in the fluoroscopic image based on one or more correction values but does not correct an image of at least a part of a region out of the predetermined region in the fluoroscopic image. The identifier is configured to identify the target position based on an image corrected by the corrector. The output controller is configured to output an irradiation permission signal to a therapeutic device which irradiates the object with a therapeutic beam based on the target position identified by the identifier.

A medical apparatus according to an embodiment includes an acquirer, an identifier, and a controller. The acquirer acquires a fluoroscopic image of an object from an imager which performs imaging by irradiating the object with an electromagnetic wave to generate the fluoroscopic image. The identifier identifies a target position of the object in the fluoroscopic image. The controller outputs an irradiation permission signal to a therapeutic device which irradiates the object with a therapeutic beam in a case where the target position identified by the identifier is settled within an irradiation permission range. The controller is configured to cause the imager to stop performing irradiation of the electromagnetic wave and cause the acquirer to stop acquiring the fluoroscopic image, in a case where a first switch is operated, and the controller is configured to cause the imager to stop performing irradiation of the electromagnetic wave and maintain a state in which the acquirer is capable of acquiring the fluoroscopic image, in a case where a second switch is operated.

A medical image processing apparatus comprising: a first input interface configured to acquire a three-dimensional volume image of an object which is provided with at least one marker, the three-dimensional volume image being generated by imaging the object using a medical examination apparatus; a second input interface configured to acquire geometry information of an imaging apparatus which is used for imaging the object to generate a fluoroscopic image of the object; and a specific-setting-information generator configured to generate specific setting information based on the three-dimensional volume image and the geometry information, the specific setting information being used for setting of imaging for generating an image depicting the at least one marker or setting of image processing of the image depicting the at least one marker.

Medical image processing apparatus, medical image processing method, computer-readable medical-image processing program, moving-object tracking apparatus, and radiation therapy system

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Tokyo, Japan

Ryusuke Hirai