Abstract: 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.

Abstract: According to one embodiment, a medical image display apparatus includes an image storage unit configured to store data of a series of medical images constituting a moving image associated with an object, and a reproduction control unit configured to perform read control of the image storage unit to alternately and repeatedly reproduce and display some of the series of medical images corresponding to a partial period in one cycle associated with cyclic motion of the object in a forward direction and a backward direction.

Abstract: A medical image processing apparatus, which makes it possible to simply ascertain a positional relationship between images referenced for diagnostic purposes, is provided. The medical image processing apparatus in the embodiments comprises an acquisition unit, an image formation unit, a generating unit, a display and a controller. The acquisition unit scans a subject, and acquires three-dimensional data. The image formation unit forms a first image and a second image by reconstructing the acquired data according to first image generation conditions and second image generation conditions. The generating unit generates positional relationship information indicating the positional relationship between the first image and second image, based on the acquired data. The controller causes display information, based on the positional relationship information, to be displayed on the display.

Abstract: An X-ray computed tomography apparatus includes an X-ray tube, an X-ray detector, a volume data reconstruction unit, a lung field region specifying unit, a discrimination unit, an image generation unit, and a display unit. The volume data reconstruction unit reconstructs first volume data of a chest region of an object based on an output from the X-ray detector. The lung field region specifying unit specifies a lung field region of the object in the first volume data. The discrimination unit generates second volume data in which a low CT value region is discriminated from a region other than the low CT value region in the lung field region. The image generation unit generates an image representing a two-dimensional distribution concerning an existing ratio of the low CT value region to the lung field region based on the second volume data.

Abstract: According to one embodiment, it is an subject to reduce the occasion that a region of interest falls outside an image due to the influence of respiratory motion or pulsation. A medical image processing apparatus causes an slice image generation unit to generate a series of slice images from a series of volume data files associated with a three-dimensional region of an subject, and causes a slice position determination unit to determine each of a plurality of slices respectively corresponding to the slice images based on the position of a specific region included in the plurality of volume data files.

Abstract: A storage unit stores data of a first image associated with a contrast-enhanced cardiac region. A specification unit specifies a specific region included in the cardiac region on the basis of a distribution of pixel values of the data of the first image. A setting unit contracts the specified specific region, and set an ROI to the contracted specific region. A calculation unit calculates an index concerning the set ROI. The index is associated with a function of the specific region.

Abstract: An X-ray perfusion-image creating unit creates an X-ray perfusion image indicating blood flow dynamics in a certain organ from an X-ray projection image of a subject given with a contrast agent. An image correction unit extracts thickness information indicating the thickness of a myocardium from a three-dimensional image taken by an X-ray Computed Tomography (CT) apparatus. Moreover, the image correction unit creates a corrected perfusion image in which the thickness of the myocardium in the X-ray perfusion image is corrected, based on the thickness information. A display unit then displays the corrected perfusion image.

Abstract: An image display system according to an embodiment includes a controlling apparatus and a display apparatus. The controlling apparatus includes a judging unit and a switching control unit, whereas the display apparatus includes a switching unit. Based on information related to viewing of an image, the judging unit judges whether the image to be displayed by the display apparatus is an image for a stereoscopic view or an image for a planar view. The switching control unit exercises control so as to switch the display apparatus into a stereoscopic view mode or a planar view mode, according to a judgment result of the judging unit. The switching unit switches the display apparatus into the stereoscopic view mode or the planar view mode, according to the control of the switching control unit.

Abstract: According to one embodiment, an image processing apparatus comprises a storage unit configured to store a plurality of volume data acquired by imaging a predetermined part of an object, the plurality of volume data corresponding to a plurality of phases, a calculation unit configured to calculate a spatial motion vector of each voxel included in each volume data by performing registration between the plurality of volume data, an image generation unit configured to generate an image representing a local motion of the diagnosis part using the motion vector of each voxel, and a display unit configured to display the image representing the local motion of the diagnosis part.

Abstract: An image display system according to an embodiment includes a controlling apparatus and a display apparatus. The controlling apparatus includes a judging unit and a switching control unit, whereas the display apparatus includes a switching unit. Based on information related to viewing of an image, the judging unit judges whether the image to be displayed by the display apparatus is an image for a stereoscopic view or an image for a planar view. The switching control unit exercises control so as to switch the display apparatus into a stereoscopic view mode or a planar view mode, according to a judgment result of the judging unit. The switching unit switches the display apparatus into the stereoscopic view mode or the planar view mode, according to the control of the switching control unit.

Abstract: An extraction unit extracts a centerline of a tubular structure from a volume data set. A generation unit generates a plurality of image data sets concerning a plurality of curved planes based on the volume data set. Each of the curved planes contains the centerline. The plurality of image data sets have a plurality of image lengths respectively and contain a plurality of centerlines respectively. A first specification unit specifies a first image data set or a second image data set from the plurality of image data sets. The first image data set is specified based on the plurality of image lengths of the plurality of image data sets. The second image data set is specified based on gradients of the plurality of centerlines of the plurality of image data sets. A display unit displays the first image or the second image.

Abstract: In an image processing system according to an embodiment, an image processing device in the embodiment includes a receiving unit, a flat image generator, and an output unit. The receiving unit receives setting of a region of interest on parallax images of a subject that are displayed stereoscopically. The flat image generator generates a flat image of a cut surface of the subject that is generated by cutting the subject along a plane corresponding to the region of interest received by the receiving unit based on volume data of the subject stored in a predetermined storage device. The output unit outputs the flat image generated by the flat image generator.

Abstract: An image processing system according to an embodiment includes a stereoscopic display device, a determining unit, and a rendering processor. The stereoscopic display device displays a stereoscopic image that is capable of being viewed stereoscopically using a parallax image group generated from volume data as three-dimensional medical image data. The determining unit identifies positional variation of a predetermined moving substance in a stereoscopic image space as a space in which the stereoscopic image is displayed by the stereoscopic display device from positional variation of the moving substance in a real space in which a coordinate system of the stereoscopic image space is present and determines an operation content on the stereoscopic image based on the identified positional variation. The rendering processor performs rendering processing on the volume data in accordance with the operation content determined by the determining unit to generate a parallax image group newly.

Abstract: An image processing system according to an embodiment is an image processing system having a terminal device including a display unit that displays a medical image. The image processing system includes an acquiring unit and a display controller. The acquiring unit acquires a position of the terminal device relative to a predetermined target. The display controller causes the display unit to display a medical image in accordance with the relative position of the terminal device relative to the target acquired by the acquiring unit.

Abstract: According to one embodiment, it is an subject to reduce the occasion that a region of interest falls outside an image due to the influence of respiratory motion or pulsation. A medical image processing apparatus causes an slice image generation unit to generate a series of slice images from a series of volume data files associated with a three-dimensional region of an subject, and causes a slice position determination unit to determine each of a plurality of slices respectively corresponding to the slice images based on the position of a specific region included in the plurality of volume data files.

Abstract: According to one embodiment, a medical image display apparatus includes an image storage unit configured to store data of a series of medical images constituting a moving image associated with an object, and a reproduction control unit configured to perform read control of the image storage unit to alternately and repeatedly reproduce and display some of the series of medical images corresponding to a partial period in one cycle associated with cyclic motion of the object in a forward direction and a backward direction.

Abstract: An image processing apparatus includes a storage unit which stores the data of a plurality of images including an examination target organ of an object, a reference point determining unit which determines, from each of the images, a reference point which is located in or near a region of the examination target organ and undergoes a relatively small displacement accompanying respiratory motion or, heartbeat, and a moving amount calculation unit which determines the position of each of a plurality of points of interest included in the region of the examination target organ relative to the reference point for each of the images, and calculates, based on the determined positions, moving amounts that corresponding points of interest between the images move accompanying the respiratory motion or the heartbeat.

Abstract: According to one embodiment, an image processing apparatus comprises a storage unit configured to store a plurality of volume data acquired by imaging a predetermined part of an object, the plurality of volume data corresponding to a plurality of phases, a calculation unit configured to calculate a spatial motion vector of each voxel included in each volume data by performing registration between the plurality of volume data, an image generation unit configured to generate an image representing a local motion of the diagnosis part using the motion vector of each voxel, and a display unit configured to display the image representing the local motion of the diagnosis part.

Abstract: An X-ray perfusion-image creating unit creates an X-ray perfusion image indicating blood flow dynamics in a certain organ from an X-ray projection image of a subject given with a contrast agent. An image correction unit extracts thickness information indicating the thickness of a myocardium from a three-dimensional image taken by an X-ray Computed Tomography (CT) apparatus. Moreover, the image correction unit creates a corrected perfusion image in which the thickness of the myocardium in the X-ray perfusion image is corrected, based on the thickness information. A display unit then displays the corrected perfusion image.

Abstract: An image processing apparatus includes a storage unit which stores the data of a plurality of images including an examination target organ of an object, a reference point determining unit which determines, from each of the images, a reference point which is located in or near a region of the examination target organ and undergoes a relatively small displacement accompanying respiratory motion or, heartbeat, and a moving amount calculation unit which determines the position of each of a plurality of points of interest included in the region of the examination target organ relative to the reference point for each of the images, and calculates, based on the determined positions, moving amounts that corresponding points of interest between the images move accompanying the respiratory motion or the heartbeat.