Patent application number | Description | Published |
20080205598 | Coherent Scatter Computer Tomography Material Identification - In a CSCT material identification apparatus CT-information and differential scatter cross-sections are used for material identification. According to an aspect of the present invention, a material identification is provided which uses both the differential and the total scatter cross-sections. This may yield an improved material discrimination, i.e. a better detection rate and a lower false alarm rate. | 08-28-2008 |
20080230715 | Optical Imaging - An optical imaging apparatus ( | 09-25-2008 |
20080253509 | Acquisition Parameter Optimization For Csct - Whereas the CT image can be acquired in a single revolution, the CSCT image acquisition may require several revolutions. According to an exemplary embodiment of the present invention, a CT/CSCT apparatus may be provided which uses CT data acquired during the first revolution to optimize acquisition parameters for the subsequent revolutions. Furthermore, projection data acquired with a pre-scanner may also be used for determining current modulation or setting an optimum voltage for the subsequent CSCT scan. | 10-16-2008 |
20080317311 | Coherent Scatter Imaging - A region of interest is identified using a conventional CT or X-ray approach. Then, the region of interest is scanned using a plurality of pencil beams ( | 12-25-2008 |
20080317320 | Correction of Artifacts Caused by the Heel Effect - According to the present invention, a 3D look-up table and a method for generating the same is provided, taking into account the x-ray spectrum variations in dependence of the cone beam angle caused by the heel effect. The 3D look-up table includes monochromatic attenuation values for all corresponding polychromatic attenuation values for each x-ray spectrum, depending on the cone beam angle. Advantageously, less image artifacts, such as, for example, cupping artifacts, are achieved in the reconstructed images. | 12-25-2008 |
20090074132 | COMPUTER TOMOGRAPHY APPARATUS AND METHOD OF EXAMINING AN OBJECT OF INTEREST WITH A COMPUTER TOMOGRAPHY APPARATUS - A computer tomography apparatus ( | 03-19-2009 |
20090141935 | MOTION COMPENSATED CT RECONSTRUCTION OF HIGH CONTRAST OBJECTS - Cardiac CT imaging using gated reconstruction is currently limited in its temporal and spatial resolution. According to an exemplary embodiment of the present invention, an examination apparatus is provided in which an identification of a high contrast object is performed. This high contrast object is then followed through the phases, resulting in a motion vector field of the high contrast object, on the basis of which a motion compensated reconstruction is then performed. | 06-04-2009 |
20090245458 | EXTENSION OF THE Q-RANGE IN CSCT - According to an embodiment of the present invention, a reconstruction scheme for a CSCT is provided which is capable of reconstructing data acquired just over a half turn, i.e. 180° plus fan angle. The reconstruction scheme may provide for an extension of the reconstruction towards smaller and larger q-regions as compared with a 360°-reconstruction, if the short scan reconstruction technique is applied to a full scan data set. | 10-01-2009 |
20090310825 | IMAGING SYSTEM FOR IMAGING A REGION OF INTEREST COMPRISING A MOVING OBJECT - The invention relates to an imaging system for imaging a region of interest comprising a moving object, which moves less in small motion phases than in large motion phases. Detection values are provided and a small motion determination unit ( | 12-17-2009 |
20100183115 | SYSTEM AND METHOD FOR ACQUIRING IMAGE DATA - A Computer Tomography system for examining an object is disclosed. The system comprises a first X-ray tube, a second X-ray tube, a first X-ray detection unit and a second X-ray detection unit. Preferably, the first X-ray detection unit is adapted to acquire a first data set by detecting radiation emitted by the first X-ray tube after passing through the object under examination, and the second X-ray detection unit is adapted to acquire a second data set by detecting radiation emitted by the second X-ray tube after being scattered by the object under examination. The system has particular application to the field of baggage inspection. | 07-22-2010 |
20100278409 | HARDWARE TUMOR PHANTOM FOR IMPROVED COMPUTER-AIDED DIAGNOSIS - An imaging system ( | 11-04-2010 |
20110002444 | MODEL BASED SELF-POSITIONING PATIENT TABLE FOR X-RAY SYSTEMS | 01-06-2011 |
20110096892 | SPECTRAL CT - An imaging system includes a radiation source ( | 04-28-2011 |
20110116598 | INTERVENTIONAL IMAGING AND DATA PROCESSING - An imaging system includes a radiation source ( | 05-19-2011 |
20110182400 | METHOD AND APPARATUS TO IMPROVE CT IMAGE ACQUISITION USING A DISPLACED GEOMETRY - A method and apparatus are provided to improve CT image acquisition using a displaced acquisition geometry. A CT apparatus may be used having a source ( | 07-28-2011 |
20110200232 | METHOD FOR CHARACTERIZING OBJECT MOVEMENT FROM CT IMAGING DATA - A method is provided for using CT imaging data to characterize the movement of a moving object. The method calculates one or more motion values based on motion vectors which are representative of the object's movement. The moving object may be, for example, a beating heart. | 08-18-2011 |
20110261923 | METHOD AND APPARATUS TO FILTER X-RAY BEAMS GENERATED USING A CT APPARATUS WITH DISPLACED GEOMETRY - A method and apparatus are provided to filter x-ray beams generated using a CT apparatus or other x-ray based system with displaced acquisition geometry. A CT apparatus may be used having a source ( | 10-27-2011 |
20120002780 | METHOD AND APPARATUS FOR BREATHING ADAPTED IMAGING - A method is provided for imaging a portion of a patient that moves as a patient breathes. A motion map is produced of the portion's motion during a breathing cycle of the patient. A scanning protocol is generated using information obtained from the motion map for a given source/detector position and a given point in the breathing cycle. The scanning protocol comprises at least one setting for at least one imaging apparatus component such that a desired amount of x-ray dosage is applied to the portion of the patient at the given source/detector position and the given point in the breathing cycle. An imaging scan is performed of the portion of the patient. The at least one imaging apparatus component is adjusted during the imaging scan. | 01-05-2012 |
20120302876 | OBJECT LOCALIZATION APPARATUS - The invention relates to an object localization apparatus for localizing an object having markers based on a projection image. An object function ( | 11-29-2012 |
20130044856 | INTERVENTIONAL IMAGING AND DATA PROCESSING - An imaging system includes a radiation source that emits radiation that traverses an examination region. A controller activates the radiation source to emit radiation and deactivates the radiation source to stop radiation emission. The controller selectively activates the radiation source to emit radiation at one or more pre-determined angles. In another embodiment, the imaging system includes a data processing component that generates a virtual three dimensional image of an object of interest of the scanned subject based on the image data. In another embodiment, the imaging system is in a communication with a data manipulation and packaging component that generates at least a two dimensional or a three dimensional data set based on the volumetric image data and packages the data set in an object provided to a remote system that manipulates and navigates through the data set. | 02-21-2013 |