120 results about "X ray data" patented technology

Tomography or X-ray CT fluoroscopy reduced in exposure to radiation in an X-ray CT apparatus or an X-ray CT fluoroscopic apparatus is to be substantialized. A channel-direction X-ray collimator or a beam forming X-ray filter is positionally controlled in the channel direction to carry out X-ray data acquisition while irradiation with X-rays limited to only the region of interest. Either the profile area of the whole subject is obtained or the profile area of the whole subject is predicted from views or scout images of irradiation of the whole subject out of X-ray projection data. Image reconstruction of views not irradiating the whole subject out of the collected X-ray projection data is carried out by predicting lacking parts from the profile area of the whole subject and making corrections accordingly. It is thereby made possible to irradiate only the region of interest with X-rays to reduce the exposure of the subject of tomography by the X-ray CT apparatus to X-rays or the exposure the subject to X-rays and the exposure of the operator's hands to radiation at the time of puncturing in X-ray CT fluoroscopy.

A computer implemented method, apparatus, and computer usable program code for generating a three-dimensional model of an object of interest in an aircraft. In response to transmitting a plurality of x-rays from a set of transmission points into the aircraft, backscatter x-ray data is received. The object identified from a two-dimensional diagram of the backscatter data. Points for the object are created from the identification of the object in the received data. The points are placed at a first distance from the transmission points to form a first curve. The points are placed at a second distance from the transmission points to form a second curve. A first surface is formed from the first and second curves. A second surface is formed that intersects the first surface to form an intersection. Three-dimensional data is generated for the three-dimensional model of the object from the intersection.

Disclosed herein are an X-ray imaging apparatus and an X-ray image generating method in which constituent materials of a target object are separated and mapped to different colors in order to provide one image which has improved distinction between tissues. The X-ray imaging apparatus includes an X-ray generator which generates X-rays and irradiates the X-rays toward a target object, an X-ray detector which acquires X-ray data which corresponds to a plurality of energy bands by detecting X-rays which have passed through the target object, and a controller which acquires a plurality of material images in which a plurality of materials constituting the target object are respectively displayed and brightness information from the X-ray data, generates one image by mapping different color channels to the plurality of material images and combining the plurality material images into a single image, and applying the brightness information to the generated image.

X-ray CT apparatus includes an x-ray data collecting device for collecting x-ray projection data transmitted by a subject positioned between an x-ray generating device and a multi-row x-ray detector, while rotating said x-ray generating device and said multi-row x-ray detector around a rotation center positioned in-between, an image reconstructing device for performing image reconstruction from the projection data collected from the x-ray data collecting device, an image display device for displaying a tomogram obtained by image reconstruction, and a scanning condition setting device for setting various scanning conditions of tomography scanning. The x-ray data collecting device is operable for variable-pitch helical scanning which x-ray projection data of the subject on a scanning table is collected by moving the scanning table while varying the speed relative to a scanning gantry in a z direction perendicular to an xy plane which is the rotating plane of the x-ray generating device and the two-dimensional x-ray area detector, and of which starting of the x-ray data collection and starting of the scanning table movement relative to the scanning gantry and / or stopping of the x-ray data collection and stopping of the scanning table movement relative to the scanning gantry are asynchronously executed.

The invention relates to an X-CT scanning system, which comprises main controlling processing computer, base, object table, mechanical controller, X-ray generator and data collector, wherein the detector array is vertically the central line of X-ray source of generator and the object table; one side of array is align or over the extending line of said central line; the over length is smaller than the radius of table. The invention only uses the x-ray data that covers half of object section to build whole object picture, to save size of detector, with high quality.