Abstract: An incision simulation device includes a processor configured to acquire a first incision line for a three-dimensional organ image that is a three-dimensional image showing an organ, acquire a first depth of incision to the first incision line, calculate a first excision region based on the first incision line and the first depth, acquire a second incision line for the three-dimensional organ image, acquire a second depth of incision to the second incision line, calculate a second excision region based on the first excision region, the second incision line, and the second depth, and identify a first region included in the first excision region and the second excision region, in the three-dimensional organ image.

Abstract: A virtual stent placement apparatus, a virtual stent placement method, and a virtual stent placement program for preventing a stent from blocking a branch of a blood vessel in a case in which the stent is virtually placed in the blood vessel extracted from a medical image are disclosed.

Abstract: Provided are a virtual stent placement apparatus, a virtual stent placement method, and a virtual stent placement program that simplify an operation of virtually placing a stent in a blood vessel extracted from a medical image. An extraction unit (22) extracts a blood vessel region (30) from a three-dimensional image (V0). A display control unit (26) displays a three-dimensional image (V1) including the blood vessel region (30). The information acquisition unit (23) acquires information of the diameter of a virtual stent placed in the blood vessel region (30), a maximum contour length of the virtual stent, and a start position (S1) in a case in which the virtual stent is placed. A placement unit (24) places the virtual stent having a maximum contour length (L0) from the start position (S1) along a maximum contour line of the blood vessel region (30) in the blood vessel region (30).

Abstract: An incision simulation device includes a processor, in which the processor acquires an incision line for a three-dimensional organ image showing an organ which is an incision simulation target, and specifies an incision region from the three-dimensional organ image based on an incision process position between the incision line and a maximum incision region, first distance data with the incision line as a reference, and second distance data with the maximum incision region designated for the three-dimensional organ image as a reference.

Abstract: A first acquisition unit acquires stent regions from each of three-dimensional images. A second acquisition unit acquires blood vessel regions from each of the three-dimensional images. A positioning unit acquires a first positioning result by positioning the blood vessel regions for each of the three-dimensional images. A deviation information acquisition unit acquires deviation information indicating a deviation of a stent from a blood vessel between the three-dimensional images based on the stent regions for the three-dimensional images and a deformation vector which is the first positioning result.

Abstract: A core-line extraction unit extracts a core line of the blood vessel from a three-dimensional image of a subject including the blood vessel. A local-route extraction unit extracts a local route of the core line within a predetermined range based on a reference point on the core line. In a case where a plurality of points on the local route are projected, a plane setting unit sets a plane having an orientation in which a distribution of a plurality of the projected points has a reference value based on a maximum value of the distribution, as a display plane of the three-dimensional image.

Abstract: The display controller displays a first tomographic image of a three-dimensional image consisting of a plurality of tomographic images on a display unit. A first correction unit corrects the boundary of a first region of interest extracted from the first tomographic image, by a correction instruction using a correction instruction region for the boundary of the first region of interest. The first instruction region setting unit sets a first instruction region on a second tomographic image of the plurality of tomographic images. The second correction unit corrects the boundary of a second region of interest extracted from the second tomographic image by setting a second instruction region on the second tomographic image.

Abstract: A storage unit stores at least one first analysis result generated by performing at least one first analysis process on an image of a subject and recovery information enabling recovery of a first analysis state where the first analysis result is generated or link information to the recovery information in a database in association with subject information specifying the subject. An analysis unit generates, in a case where at least one second analysis process generating at least one second analysis result different from the first analysis result is performed, the second analysis result by performing the second analysis process using the recovery information. The storage unit stores the second analysis result in the database in association with the subject information.

Abstract: A tubular region acquisition unit acquires a first stent region and a second stent region from three-dimensional images. A model setting unit sets a first tubular model and a second tubular model that represent a surface shape of a stent, respectively, for the first stent region and the second stent region. A corresponding point setting unit sets a plurality of corresponding points that correspond to each other, respectively, for the first tubular model and the second tubular model. A first registration unit registers the first tubular model and the second tubular model on the basis of the corresponding points to obtain a first registration result.

Abstract: The three-dimensional image processing apparatus includes a surface data generation unit that extracts a display target from a three-dimensional image and generates surface data indicating a surface of the display target, a color information acquisition unit that performs a volume rendering process for the three-dimensional image of a specific section including a vertex of the surface data in a direction from the outside to the inside of a surface forming the surface data to acquire color information and assigns a color to the surface of the surface data on the basis of the color information, and a display control unit that displays the surface data having the surface, to which the color has been assigned, on a display unit.

Abstract: The image display control device includes an image extracting unit that extracts an image of an observing target tissue from a three-dimensional image, a distance storage unit that stores a distance from a front surface of the observing target tissue to be used for generating a superimposition image, a surface form obtaining unit that obtains a surface form of the observing target tissue in a real space, a position matching unit that performs position matching such that a positional matching relationship between the surface form in the real space and the image of the observing target tissue is established, a superimposition image generating unit that generates the superimposition image based on the image of the observing target tissue on which the position matching is performed and the distances, and a display controller that displays the superimposition image such that the superimposition image is superimposed on the observing target tissue.

Abstract: A first acquisition unit acquires stent regions from each of three-dimensional images. A second acquisition unit acquires blood vessel regions from each of the three-dimensional images. A positioning unit acquires a first positioning result by positioning the blood vessel regions for each of the three-dimensional images. A deviation information acquisition unit acquires deviation information indicating a deviation of a stent from a blood vessel between the three-dimensional images based on the stent regions for the three-dimensional images and a deformation vector which is the first positioning result.

Abstract: Provided are a virtual stent placement apparatus, a virtual stent placement method, and a virtual stent placement program that simplify an operation of virtually placing a stent in a blood vessel extracted from a medical image. An extraction unit (22) extracts a blood vessel region (30) from a three-dimensional image (V0). A display control unit (26) displays a three-dimensional image (V1) including the blood vessel region (30). The information acquisition unit (23) acquires information of the diameter of a virtual stent placed in the blood vessel region (30), a maximum contour length of the virtual stent, and a start position (S1) in a case in which the virtual stent is placed. A placement unit (24) places the virtual stent having a maximum contour length (L0) from the start position (S1) along a maximum contour line of the blood vessel region (30) in the blood vessel region (30).

Abstract: A virtual stent placement apparatus, a virtual stent placement method, and a virtual stent placement program for preventing a stent from blocking a branch of a blood vessel in a case in which the stent is virtually placed in the blood vessel extracted from a medical image are disclosed.

Abstract: When an image representing an organ in which an excision region has been identified in such a manner that a blood vessel region in the organ is visually recognizable is generated from a three-dimensional image of the organ, an input specifying a depth of cutting is received, and a portion of a boundary surface within the specified depth of cutting along the boundary surface from an outer edge of the boundary surface toward an inside is determined as a cutting surface, and the boundary surface being between the excision region and a non-excision region in the organ. The image representing the organ in such a manner that only a partial blood vessel region, which is present in a neighborhood region of the cutting surface in the blood vessel region of the organ, is visually recognizable is generated from the three-dimensional image.

Abstract: The three-dimensional image processing apparatus includes a surface data generation unit that extracts a display target from a three-dimensional image and generates surface data indicating a surface of the display target, a color information acquisition unit that performs a volume rendering process for the three-dimensional image of a specific section including a vertex of the surface data in a direction from the outside to the inside of a surface forming the surface data to acquire color information and assigns a color to the surface of the surface data on the basis of the color information, and a display control unit that displays the surface data having the surface, to which the color has been assigned, on a display unit.

Abstract: An image acquisition section acquires a captured image by imaging a display on which an image is displayed, a detection section detects the display from the captured image. An additional information determination section decides additional information relating to the displayed image included in the detected display, and an alignment section aligns the displayed image and the additional information. A display controller displays the additional information on an HMD.

Abstract: A storage unit stores at least one first analysis result generated by performing at least one first analysis process on an image of a subject and recovery information enabling recovery of a first analysis state where the first analysis result is generated or link information to the recovery information in a database in association with subject information specifying the subject. An analysis unit generates, in a case where at least one second analysis process generating at least one second analysis result different from the first analysis result is performed, the second analysis result by performing the second analysis process using the recovery information. The storage unit stores the second analysis result in the database in association with the subject information.

Abstract: The image display control device includes an image extracting unit that extracts an image of an observing target tissue from a three-dimensional image, a distance storage unit that stores a distance from a front surface of the observing target tissue to be used for generating a superimposition image, a surface form obtaining unit that obtains a surface form of the observing target tissue in a real space, a position matching unit that performs position matching such that a positional matching relationship between the surface form in the real space and the image of the observing target tissue is established, a superimposition image generating unit that generates the superimposition image based on the image of the observing target tissue on which the position matching is performed and the distances, and a display controller that displays the superimposition image such that the superimposition image is superimposed on the observing target tissue.

Abstract: A first extracting unit extracts at least one portion of a region of a target structure that includes lumen structures having branches from a three dimensional image of the target structure. A second extracting unit extracts the lumen structures from the at least one portion of the region of the target region. An index value calculating unit calculates an index value that represents the uniformity of the distribution of the lumen structures within the at least one portion of the region of the target structure, based on the at least one portion of the region of the target structure and the extracted lumen structures. Further, a quantifying unit quantifies the degree of reliability of the image quality of the at least one portion of the region of the target structure.