Patent application number | Description | Published |
20090028289 | X-RAY CT APPARATUS - 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. | 01-29-2009 |
20090028409 | X-RAY COMPUTED TOMOGRAPHY APPARATUS AND IMAGE PROCESSING APPARATUS - 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. | 01-29-2009 |
20090238424 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - 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. | 09-24-2009 |
20090268954 | IMAGE PROCESSING APPARATUS AND PROGRAM - 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. | 10-29-2009 |
20100092053 | MEDICAL IMAGE PROCESSOR AND MEDICAL IMAGE PROCESSING METHOD - A medical image processor includes: an extraction unit configured to extract a longitudinal line from three-dimensional volume data for a medical image, the longitudinal line representing how a tubular structure runs; a longitudinal cross-sectional image generator configured to generate multiple longitudinal cross-sectional images extending along the longitudinal line, the longitudinal cross-sectional images being cross-sectional images of the tubular structure; a short-axis cross-sectional image generator configured to generate multiple short-axis cross-sectional images intersecting the longitudinal line, the short-axis cross-sectional images being cross-sectional images of the tubular structure; a structure element detector configured to detect a specific structural element of the tubular structure from each of the plurality of short-axis cross-sectional images; and a correction unit configured to correct the specific structural element detected from each of the multiple short-axis cross-sectional images on a basis of the multiple longitudinal cross-sectional images. | 04-15-2010 |
20120121145 | MEDICAL IMAGE PROCESSING APPARATUS - An apparatus handles a series of medical images. A time density curve generation unit generates time density curves respectively corresponding to pixels from the series of medical images. An approximation processing unit approximates a convolution between a specific time density curve of the time density curves and each of types of kinetic models to each of the time density curves upon adjustment of at least one parameter which each of the kinetic models has. A suitability index map generation unit generates types of suitability index maps respectively corresponding to the types of kinetic models based on approximation errors respectively corresponding to the pixels, which are obtained by the approximation processing unit. | 05-17-2012 |
20120243759 | IMAGE PROCESSING APPARATUS, X-RAY CT APPARATUS, AND IMAGE PROCESSING METHOD - An image processing apparatus includes a contrast side obtaining unit, estimating unit, a simple side obtaining unit, a core area computing unit, a synthesizing unit and a display control unit. The contrast side obtaining unit obtains a contrast area and a high CT value area around the contrast area. The estimating unit estimates a contrast area in the non-contrast data and corresponding to the obtained contrast area. The simple side obtaining unit obtains a high CT value area around the estimated contrast area. The core area computing unit computes a core area included in the high CT value area of the contrast data and the non-contrast data. The synthesizing unit aligns the contrast data with the non-contrast data and generates superimposed data by superimposing the high CT value area of the contrast data on the non-contrast data. The display control unit displays the superimposed data on a display device. | 09-27-2012 |
20120243760 | PLAQUE REGION EXTRACTING METHOD AND APPARATUS THEREFOR - According to one embodiment, a plaque region extracting apparatus includes a blood vessel wall data extracting unit, an intermediate image data generating unit, an enhancement processing unit, a plaque extracting unit. The blood vessel wall data extracting unit extracts first image data including a blood vessel wall from image data acquired by imaging a subject including blood vessels. The intermediate image data generating unit filters an intermediate region in the first image data to generate intermediate second image data. The enhancement processing unit processes the difference between the first image data and the second image data to generate third image data. The plaque extracting unit extracts a plaque in the blood vessel on the basis of the third image data. | 09-27-2012 |
20120250966 | X-RAY CT APPARATUS AND IMAGE PROCESSING METHOD - An X-ray CT apparatus according to an exemplary embodiment includes: a specifying unit that specifies the position of a lesion and the position of a surrounding site positioned in a surrounding of the lesion, from pieces of image data of the inside of the patient corresponding to the mutually-different temporal phases; a movement information calculating unit that calculates movement information related to movements of the lesion and the surrounding site, based on the positions of the lesion and the surrounding site specified by the specifying unit; and a relative relationship calculating unit that calculates a relative relationship between the movement information of the lesion and the movement information of the surrounding site calculated by the movement information calculating unit. | 10-04-2012 |
20130208970 | MEDICAL IMAGE PROCESSING APPARATUS, AN X-RAY CT SCANNER, AND A MEDICAL IMAGE PROCESSING PROGRAM - A medical image processing apparatus to accurately identify malignant transformations of probable tumors. The medical image processing apparatus including a specifying mechanism and first, second, and third computing mechanisms. The specifying mechanism specifies a probable tumor from medical image data upon receiving the medical image data obtained by imaging a subject by a single medical imaging apparatus. The first computing mechanism calculates morphological information indicating morphological characteristics of a specified probable disease based on this medical image data. The second computing mechanism calculates functional information of the specified probable disease based on this medical image data. The third computing mechanism calculates amount of progress characteristics indicating the extent of the probable disease based on the morphological information and functional information. | 08-15-2013 |