Abstract: IVR-CT apparatus has an angio-image obtaining unit, an angio-image imaging direction obtaining unit, a CT-image obtaining unit, a blood vessel part extracting unit, a projected image generating unit and a display control unit. The angio-image obtaining unit obtains a required angio-image from multiple chronological angio-images. The angio-image imaging direction obtaining unit obtains a direction of imaging as incidental information included in data on the required angio-image. The CT-image obtaining unit obtains a three-dimensional CT-image corresponding to the required angio-image. The blood vessel part extracting unit extracts a blood vessel part in the three-dimensional CT-image. The projected image generating unit generates a three-dimensional projected image by projecting the blood vessel part, and a three-dimensional projected image corresponding to a direction of a projection after a manual operation operates the direction of the projection.

Abstract: An image processing apparatus includes a storage unit which stores volume data associated with an area including a contrast-enhanced artery as an examination target, a first calculation unit which calculates a plurality of partial atherosclerotic indexes associated with a plurality of portions of the artery on the basis of morphological information associated with the artery which is obtained from the volume data, a second calculation unit which calculates a whole atherosclerotic index associated with the entire artery including the plurality of portions on the basis of the morphological information associated with the artery, and a display unit which displays evaluation information based on the calculated whole atherosclerotic index.

Abstract: An image processor according to the invention is provided with a storage that stores the volume data of a medical image including a chest of an examined body, a search range setting device that specifies a cardiac search range based upon an air region corresponding to a lung in a tomographic image acquired based upon the volume data, a ventricular cluster detector that detects a ventricular region from the cardiac search range, a long axis detector that detects the long axis of a ventricle from the detected ventricular region, a multiplanar reconstruction processor that generates plural sectional images perpendicular to the detected ventricular long axis based upon the volume data, a ventricular wall detector that detects the inner wall and the outer wall of the ventricle from each of the plural sectional images, a ventricle analyzer that analyzes the ventricle based upon the detected ventricular inner/outer walls and a controller that makes a series of processes from a process for limiting the range includin

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: A super-resolution processor includes a storage section for storing data of point spread functions of an X-ray CT scanner which are acquired using a phantom and a super-resolution processing section performing super-resolution of image data of a sample generated by the X-ray CT scanner using the stored point spread functions.

Abstract: A CT value of an image within a region of interest is calculated with time. While the calculated CT value does not exceed a predetermined threshold value, a reconstruction mode used when an image is reconstructed from projection data is set to half reconstruction. On the other hand, while the calculated CT value exceeds a predetermined threshold value, the reconstruction mode is set to segment reconstruction.

Abstract: An X-ray tube generates X-rays. An X-ray detector detects X-rays generated from the X-ray tube and transmitted through an object to be examined. A rotating frame continuously rotates the X-ray tube and the X-ray detector around the object. A reconstruction unit reconstructs a plurality of first volume data sets with different scan times for the same scan area of the object on the basis of an output from the X-ray detector. An image processing unit generates single second volume data set corresponding to a maximum value, an average value, a median value, or minimum value of the plurality of reconstructed first volume data sets in the temporal direction.

Abstract: An X-ray computed tomographic apparatus includes an X-ray tube which generates X-rays, an X-ray detector which detects X-rays transmitted through a subject and generates projection data, and a reconstruction unit which generates a plurality of original volume data at different scanning times based on the projection data. This apparatus includes an unit which obtains difference volume data corresponding different scanning times by performing difference processing between original volume data at adjacent scanning times, an unit which extracts a blood vessel image on the basis of original volume data before and after the injection of a contrast medium, and an unit which generates a display image by providing the blood vessel image with color or luminance information corresponding to the arrival time of the contrast medium on the basis of the blood vessel image and the plurality of difference volume data corresponding to the different scanning times.

Abstract: An image processing apparatus includes an index computing unit that computes motion functional indices of a particular organ from volume data of a subject including the particular organ, a polar map generating unit that generates a polar map by developing the indices on a polar coordinate system, an image generating unit that generates, from the volume data, an image related to a structure of one of the particular organ and a peripheral organ developed on the polar coordinate system, a fusing unit that fuses the image into the polar map, and a display unit that displays a polar map fused with the image.

Abstract: An X-ray computed tomography apparatus calculates transfer functions h(t) using a time-concentration curve Ca(t) for pixels of a cerebral artery and a time-concentration curve Ci(t) for pixels of cerebral tissues including capillary vessels and then calculates a delay time for each pixel of an object region from a time when an artery curve rises on the basis of the transfer functions. Further, the apparatus differently produces a visual color map showing time differences of blood flow conditions and provide it in a predetermined form by coloring pixels with a time delay from the other pixels without a time delay on the basis of the calculated delay time.

Abstract: IVR-CT apparatus has an angio-image obtaining unit, an angio-image imaging direction obtaining unit, a CT-image obtaining unit, a blood vessel part extracting unit, a projected image generating unit and a display control unit. The angio-image obtaining unit obtains a required angio-image from multiple chronological angio-images. The angio-image imaging direction obtaining unit obtains a direction of imaging as incidental information included in data on the required angio-image. The CT-image obtaining unit obtains a three-dimensional CT-image corresponding to the required angio-image. The blood vessel part extracting unit extracts a blood vessel part in the three-dimensional CT-image. The projected image generating unit generates a three-dimensional projected image by projecting the blood vessel part, and a three-dimensional projected image corresponding to a direction of a projection after a manual operation operates the direction of the projection.

Abstract: A cerebral ischemia diagnosis assisting apparatus comprises a storing portion for storing multi-slices or volume data with regard to the head portion of a subject, an image generating portion for generating a tomography image of a brain from the multi-slices or the volume data, an image processing portion for processing the tomography image for generating a contrast highlighting image and a brain sulci highlighting image or either thereof, and a display portion for displaying the tomography image along with the contrast highlighting image and the brain sulci highlighting image.

Abstract: An image processor according to the invention is provided with a storage that stores the volume data of a medical image including a chest of an examined body, a search range setting device that specifies a cardiac search range based upon an air region corresponding to a lung in a tomographic image acquired based upon the volume data, a ventricular cluster detector that detects a ventricular region from the cardiac search range, a long axis detector that detects the long axis of a ventricle from the detected ventricular region, a multiplanar reconstruction processor that generates plural sectional images perpendicular to the detected ventricular long axis based upon the volume data, a ventricular wall detector that detects the inner wall and the outer wall of the ventricle from each of the plural sectional images, a ventricle analyzer that analyzes the ventricle based upon the detected ventricular inner/outer walls and a controller that makes a series of processes from a process for limiting the range includin

Abstract: A super-resolution processor includes a storage section for storing data of point spread functions of an X-ray CT scanner which are acquired using a phantom and a super-resolution processing section performing super-resolution of image data of a sample generated by the X-ray CT scanner using the stored point spread functions.

Abstract: An image processing apparatus includes an index computing unit that computes motion functional indices of a particular organ from volume data of a subject including the particular organ, a polar map generating unit that generates a polar map by developing the indices on a polar coordinate system, an image generating unit that generates, from the volume data, an image related to a structure of one of the particular organ and a peripheral organ developed on the polar coordinate system, a fusing unit that fuses the image into the polar map, and a display unit that displays a polar map fused with the image.