Canon Medical Systems Corporation

Toshiba Medical Systems Corporation

Takuma Igarashi

Yasuko Fujisawa

Kenji Hirohata

Kazumasa Arakita

Satoshi Wakai

Junichiro Ooga

Hideaki Ishii

Shigeo Kaminaga

Ryo Shiroishi

Tatsuya Kimoto

Naotaka Sakashita

Qiqi Xu

Shigeyuki Ishii

Takeshi Ezumi

Fanjie Meng

Hayato Konishi

There is provided a medical image processing apparatus which includes a first extraction unit configured to extract coronary arteries depicted in images of a plurality of time phases relating to the heart, and to extract at least one stenosed part depicted in each coronary artery; a calculation unit configured to calculate a pressure gradient of each of the extracted coronary arteries, based on tissue blood flow volumes of the coronary arteries; a second extraction unit configured to extract an ischemic region depicted in the images; and a specifying unit configured to specify a responsible blood vessel of the ischemic region by referring to a dominance map, in which each of the extracted coronary arteries and a dominance territory are associated, for the extracted ischemic region, and to specify a responsible stenosis, based on the pressure gradient corresponding to a stenosed part in the specified responsible blood vessel.

Medical image processing apparatus and medical image processing method

According to one embodiment, a medical image processing apparatus includes first specifier, second specifier, determiner and display controller. First specifier collates an ischemic region calculated from a blood vessel visualized into a three-dimensional image in a plurality of phases with a dominating region of the blood vessel, and specifies a culprit vessel in the ischemic region. Second specifier specifies a culprit stenosis in the culprit vessel based on a pressure index calculated from the blood vessel. Determiner determines a connection position to connect a bypass vessel that makes a detour around the culprit stenosis. Display controller displays the determined connection position on a display.

Medical image processing apparatus

According to one embodiment, a medical image diagnostic apparatus includes a storage memory, processing circuitry, and a display. The storage memory stores data of a plurality of FFR distribution maps constituting a time series regarding a coronary artery, and data of a plurality of morphological images corresponding to the time series. The processing circuitry converts the plurality of FFR distribution maps into a plurality of corresponding color maps, respectively. The display displays a plurality of superposed images obtained by superposing the plurality of color maps and the plurality of morphological images respectively corresponding in phase to the plurality of color maps. The display restricts display targets for the plurality of color maps based on the plurality of FFR distribution maps or the plurality of morphological images.

Medical image diagnostic apparatus

A medical image diagnosis apparatus according to an embodiment includes an imager, a storage, and processing circuitry. The storage stores therein a correspondence relationship between each of disease patterns and scans used for performing a differential diagnosis process on the disease pattern. The processing circuitry obtains, based on image data acquired by a first scan, a disease pattern having a possibility of being applicable to the subject and a first index value indicating a degree of applicability of the disease pattern. The processing circuitry outputs information indicating the disease pattern to a display when it is possible to perform the differential diagnosis process based on the first index value and outputs an imaging condition used for performing a second scan based on the correspondence relationship and the disease pattern having the possibility when it is not possible to perform the differential diagnosis process based on the first index value.

Medical image diagnosis apparatus and medical image diagnosis system

A medical image processing apparatus according to an embodiment includes a processing circuit. The processing circuit specifies teaching data used for generation of a learned model. The processing circuit performs image analysis with respect to pieces of collected medical image data. The processing circuit extracts medical image data having an attribute common to the teaching data of the learned model from the pieces of medical image data based on an analysis result of the image analysis, as a candidate of the teaching data of the learned model.

Medical image processing apparatus, medical image processing system, and medical image processing method

A medical image diagnostic apparatus according to an embodiment includes an estimation unit, an extraction unit, and a specifying unit. The estimation unit estimates a position of a plaque in a blood vessel based on data of CT images constituting a time series, with the blood vessel being enhanced by a contrast medium. The extraction unit extracts regions constituting the blood vessel from the CT images. The specifying unit specifies stress values respectively corresponding to the regions based on a moving displacement due to cardiac pulsation in each of the regions, and specifies an exfoliation risk of the plaque based on an index indicating hardness of the plaque and the stress value in the region corresponding to the position of the plaque.

A medical apparatus according to an embodiment includes control circuitry. The control circuitry is configured to: acquire a three-dimensional cumulative dose distribution of an object; set a treatment target site by treatment accompanied with X-ray irradiation to the object; and determine an X-ray irradiating direction for performing the X-ray irradiation based on the three-dimensional cumulative dose distribution and the treatment target site.

Medical apparatus and x-ray system

A medical image processing apparatus according to a present embodiment includes processing circuitry. The processing circuitry is configured to: acquire a subject image relating to a subject; acquire a standard image indicating a morphological structure of a human body and sections of a morphological structure from a memory which stores each standard image in association with sections of a morphological structure; set a comparison target portion of the subject image based on the subject image; set a comparison target portion of the standard image based on a comparison between the subject image and the standard image; specify a section in the comparison target portion of the subject image based on a comparison between the comparison target portion of the subject image and the comparison target portion of the standard image; and output the subject image and the section in association with each other.

Medical image processing apparatus, method for processing medical image, and medical image processing system

An image processing apparatus according to an embodiment includes a processing circuitry. The processing circuitry obtains an MR image acquired by a magnetic resonance imaging apparatus and related to a brain. The processing circuitry divides a region of the brain in the MR image, into plural regions. The processing circuitry sets a parameter value used in generation of a calculated image generated by synthetic MRI and related to the brain, such that a relation of contrast among regions included in the plural regions becomes a predetermined relation. The processing circuitry generates the calculated image by the synthetic MRI, by using the MR image and the parameter value.

Image processing apparatus, magnetic resonance imaging apparatus, and storage medium

A centerline extraction unit extracts at least two coronary artery centerline structures from at least two images respectively corresponding to at least two cardiac phases concerning a heart, an interpolation processing unit interpolates coronary artery centerline structures concerning other cardiac phases from the at least two extracted coronary artery centerline structures to generate coronary artery centerline structures respectively corresponding to a plurality of cardiac phases throughout one heartbeat of the heart, and a displacement distribution calculation unit calculates a plurality of displacement distributions between the respective cardiac phases from a plurality of coronary artery centerline structures throughout the one heartbeat.

Growing community of inventors

Nasushiobara, Japan

Takuma Igarashi