Toshiba Medical Systems Corporation

Canon Medical Systems Corporation

Ryoichi Nagae

Yuichiro Watanabe

Takuya Sakaguchi

Yoshiaki Iijima

Yasuto Hayatsu

Yoshinori Shimizu

Kunio Shiraishi

Sho Sasaki

Naoki Uchida

Tomoki Fujito

Mika Takaya

Satoru Ohishi

Hisato Takemoto

Shingo Abe

Nobuo Kobayashi

Keisuke Nakamura

Masahiro Ozawa

Jun Okada

Ryuji Zaiki

Yoshiyasu Hayashi

Shumpei Ohashi

Ko Fuchigami

Haruki Iwai

Masanori Matsumoto

Fumimasa Shige

Toshio Muroi

Yusaku Aizawa

Satoru Esashi

Nobuo Ogura

Masanori Gunji

Nobuhiro Ohga

Kodai Hirayama

An X-ray diagnostic apparatus according to an embodiment includes a storage, an imaging equipment, a display, an input interface, and processing circuitry. The storage memorizes medical images. The imaging equipment includes an X-ray tube configured to emit X-rays toward a subject and a detector configured to detect X-rays emitted from the X-ray tube. The display displays a plurality of medical images including X-ray images captured by the imaging equipment. The input interface accepts an operation instructing storage of a medical image displayed on the display. The processing circuitry identifies a medical image associated with a last-executed, targeted operation, among targeted operations related to any of medical images displayed on the display, and, when the input interface has accepted an operation instructing storage of a medical image displayed on the display, causes the storage to memorize the identified medical image.

X-ray diagnostic apparatus

A medical information processing device according to an embodiment includes processing circuitry configured to acquire a plurality of X-ray images including a device inserted into a body of a subject, suppress movement of a characteristic portion characterized in a shape that is positioned distant from a distal end of the device among the X-ray images, and output the X-ray images in which movement of the characteristic portion is suppressed.

Medical image processing apparatus, X-ray diagnostic apparatus, and medical image processing method

A medical information processing apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to obtain an image capturing a space in which a manipulation is being performed on an examined subject and non-image information related to at least one of the manipulation, the examined subject, or the space. Also, the processing circuitry is configured to detect a situation having a high possibility for an occurrence of an abnormality in the space, on the basis of the obtained image, the obtained non-image information, and first correspondence information. The first correspondence information indicates a correspondence relationship between two or more images capturing the space, non-image information, and abnormalities having a high possibility of occurring in the space.

Medical information processing apparatus, system, and X-ray diagnosis apparatus

A medical image-processing apparatus according to an embodiment includes processing circuitry configured to determine a position of a feature point of a device in a first X-ray image, and generate a superimposed image in which a 3D model expressing the device is superimposed on the first X-ray image or a second X-ray image that is acquired later than the first X-ray image. The processing circuitry is configured to superimpose the 3D model on the first X-ray image or the second X-ray image at a position based on the position of the feature point.

Image processing apparatus, X-ray diagnostic apparatus, and image processing method

A medical image processing apparatus according to an embodiment includes processing circuitry configured: to acquire a plurality of time series medical images; to determine a feature point in each of the plurality of medical images to calculate moving amounts of the determined feature point between the plurality of medical images; to set a weight coefficient with respect to each of the plurality of medical images, on the basis of the calculated moving amounts; and to perform an image processing process by using the plurality of medical images, on the basis of the weight coefficients.

An X-ray diagnostic apparatus according to an embodiment includes processing circuitry configured to acquire a plurality of X-ray images over time based on X-rays having passed through a subject injected with a contrast agent, to calculate a blood vessel region corresponding to an inflow path of the contrast agent leading to a predetermined position in the blood vessel region, based on a temporal transition of signal intensities of the contrast agent in the blood vessel region represented in the X-ray images, and to perform control to display the blood vessel region corresponding to the inflow path in a display mode that is different from that of a blood vessel region other than the inflow path on a display.

X-ray diagnostic apparatus and image processing apparatus

According to one embodiment, an image processing device includes processing circuitry. The processing circuitry sequentially acquires image data of time-sequential DSA images of an object, and acquires a parameter value for each pixel based on temporal change of a pixel value of the each pixel corresponding to the same region of the object in the sequentially acquired image data of time-sequential DSA images. Further, the processing circuitry sequentially generates image data of parameter images in such a manner that identification information according to the parameter value is assigned to the each pixel corresponding to the same region of the object, each time image data of a DSA image of the latest time phase being acquired.

Image processing device and X-ray diagnostic apparatus

An image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry extracts a fixed object included in chronologically collected X-ray images and having a substantially fixed position. The processing circuitry detects a target object included in each of the X-ray images, on the basis of extraction results of the fixed object. The processing circuitry generates a plurality of corrected images by a correction process to substantially match, with a reference position, the detected position of the target object in an X-ray image other than a reference X-ray image, the reference position being the detected position of the target object in the reference X-ray image.

Image processing apparatus, x-ray diagnostic apparatus, and image processing method

An X-ray diagnostic apparatus of an embodiment includes processing circuitry. The processing circuitry acquires two medical images, a moving distance of a region of interest between the medical images corresponding to a distance derived from a parallax angle. The processing circuitry causes a display to display a stereoscopic image based on the medical images.

According to one embodiment, an image processing apparatus includes processing circuitry. The processing circuitry obtains a parameter value representing temporal information on blood flow for each pixel of multiple image data items, and generates a parameter image by determining a pixel value of each pixel according to the parameter value representing the temporal information on blood flow. The processing circuitry further generates a composite image of an X-ray fluoroscopic image of an object obtained in real time and a road map image using at least a part of the parameter image, and causes a display to display the composite image.

An X-ray diagnostic apparatus of an embodiment includes an image generator, a detection unit, and an irradiation control unit. The image generator successively generates X-ray images based on X-rays emitted from an X-ray tube and transmitted through a subject. The detection unit detects a position of a predetermined target included in the successively generated X-ray images. The irradiation control unit identifies, based on the detected position of the predetermined target, a region in which the predetermined target can be visualized in the X-ray images, and performs control to reduce an X-ray irradiation dose to a region other than the identified region.

According to one embodiment, the X-ray image diagnosis apparatus comprises an X-ray generator, an X-ray restriction unit, a first X-ray detector, a second X-ray detector, and a drive. The X-ray generator generates X-rays to be applied to a subject. The X-ray restriction unit is disposed between the subject and the X-ray generator to restrict X-rays outside an opening region which is formed using a metal plate. The first X-ray detector has a first detection region in which X-rays that pass through the subject are detected. The second X-ray detector has a second detection region which is smaller than the first detection region and which has a high spatial resolution. The drive moves the first and second X-ray detectors so that the second detection region includes an irradiation region of the subject formed by the opening region.

X-ray image diagnosis apparatus

According to one embodiment, an image analysis device includes a parameter value acquisition unit, a color allocation unit and a time phase image generation unit. The parameter value acquisition unit acquires a parameter value per pixel, on the basis of time variation of pixel values per pixel corresponding to the same region of an object in image data of a plurality of sequential DSA images. The color allocation unit generates a color map in which a (chromatic) color in accordance with the parameter value is allocated per pixel corresponding to the same region of the object. The time phase image generation unit generates color image data of time phase images respectively corresponding to a plurality of time phases, by reflecting information in accordance with pixel values of the DSA images to each pixel of the color map.

Image analysis device and X-ray diagnostic apparatus

An image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to acquire correction information on a luminance value of a contrast image, based on concentration of a contrast material and thickness of the contrast material in a projection direction in a device that is inserted into a blood vessel, in the contrast image. The processing circuitry is configured to correct the contrast image using the correction information.

Image processing apparatus and X-ray diagnostic apparatus

According to one embodiment, a medical image processing apparatus includes processing circuitry. The processing circuitry obtains time changes in intensity of image signals corresponding to a contrast agent or a blood flow based on at least one of time series contrast image data, time series non-contrast image data, and time series subtraction image data between the contrast image data and the non-contrast image data, generate color image data, having color pixel values based on the time changes in the image signals, according to a color scale, and display frames of the color image data sequentially on a display. The processing circuitry performs a loop playing of the frames of the color image data by sequentially shifting the color scale in a direction of a color phase change, at pixels of the color image data, until an instruction for stopping the loop playing is input from an input circuit.

Growing community of inventors

Nasushiobara, Japan

Ryoichi Nagae