Patent application number | Description | Published |
20090232379 | RECONSTRUCTION OF AN IMAGE OF A MOVING OBJECT FROM VOLUMETRIC DATA - In the CT imaging of non-homogeneously moving objects such as the heart or the coronary vessel tree, there is a problem that different parts of the objects are at rest at different points in time. Thus, a gated reconstruction with a globally selected time point does not yield a sharp image of such objects. According to the present invention, a motion of the object is estimated, describing the motion of selected regions of these objects. Then, on the basis of the estimated motion, time points are determined, where these areas have minimal motion. Then, an image is reconstructed, wherein the data from which the respective regions are reconstructed, correspond to the respective time points, where the regions have minimal motion. Due to this, an improved image quality may be provided. | 09-17-2009 |
20110049381 | IMAGING DETECTOR THERMAL CONTROL - An imaging detector includes a radiation sensitive region having first and second opposing sides. One of the first or second sides senses impinging radiation. The detector further includes electronics located on the other of the first or second sides of the radiation sensitive region. The electronics includes a thermal controller that regulates a temperature of the imaging detector. | 03-03-2011 |
20110103550 | MEDICAL X-RAY EXAMINATION APPARATUS AND METHOD FOR K-EDGE IMAGING - The present invention relates to a medical X-ray examination apparatus and method for performing k-edge imaging of an object of interest including material showing k-edge absorption. To allow the use of conventional detector technology, which does not suffer from the limitation to provide very high k-rate capabilities a method is proposed comprising the steps of:
| 05-05-2011 |
20120121063 | X-RAY EXAMINATION DEVICE AND METHOD - The present invention relates to an X-ray examination device and a corresponding method. A fast and periodical modulation of the X-ray flux within each detection interval is performed having a low X-ray flux at the beginning of the detection interval to ensure that no detection channel is overloaded. With increasing the X-ray flux particularly the peripheral detection channels will nm into saturation, which is detected. A saturated detector channel is stopped from further detecting radiation, and the time of effective radiation detection without saturation is measured for correcting those detection signals. From all detection signals, after any correction of detection signals from saturated detection channels, an X-ray image can be reconstructed. | 05-17-2012 |
20120177274 | SYSTEM AND METHOD FOR GENERATING AN IMAGE OF A REGION OF INTEREST - The invention relates to an image generation system for generating an image of a region of interest. The image generation system comprises a measured data providing unit for providing measured data of the region of interest, a reconstruction unit ( | 07-12-2012 |
20120250821 | COMPUTED TOMOGRAPHY APPARATUS - The invention relates to a computed tomography apparatus for imaging an object. The computed tomography apparatus comprises a radiation source ( | 10-04-2012 |
20130182820 | DYNAMIC FILTER FOR COMPUTED TOMOGRAPHY (CT) - An imaging system including a source ( | 07-18-2013 |
20130251286 | ITERATIVE RECONSTRUCTION ALGORITHM WITH A CONSTANT VARIANCE BASED WEIGHTING FACTOR - A method includes reconstructing measured projection data using an iterative statistical reconstruction algorithm that reduces image artifact caused by differences in variances in projections of the measured projection data used to update a voxel of the image for one or more voxels of the image. A reconstructor includes a processor that reconstructs measured projection data using an iterative statistical reconstruction algorithm that reduces or mitigates image artifact caused by differences in variances in projections used to update a voxel of the image for one or more voxels of the image. A computer readable storage medium encoded with computer executable instructions, which, when executed by a processor of a computer, cause the processor to: reduce image artifact caused by differences in variances in projections used to update a voxel of an image for one or more voxels of the image using an iterative statistical reconstruction algorithm. | 09-26-2013 |
20130259191 | POST-PATIENT DYNAMIC FILTER FOR COMPUTED TOMOGRAPHY (CT) - An imaging system includes a radiation source ( | 10-03-2013 |
20130279785 | IMAGING SYSTEM FOR IMAGING A REGION OF INTEREST - The noise of a detection value acquired by an imaging system ( | 10-24-2013 |
20130308847 | SPECTRAL IMAGING - A method includes analyzing a spectral projection image of a portion of a subject, generating a value quantifying an amount of a target specific contrast material in a region of interest of the spectral projection image, and generating a signal indicative of a presence of the target in response to the value satisfying a predetermined threshold level. | 11-21-2013 |
20130308848 | DETECTION VALUES PROCESSING APPARATUS - The invention relates to a detection values processing apparatus. Energy-dependent detection values are provided, which are indicative of polychromatic radiation ( | 11-21-2013 |
20130329851 | DETECTION APPARATUS - The invention relates to a detection apparatus comprising a filter ( | 12-12-2013 |
20140005971 | LIKELIHOOD-BASED SPECTRAL DATA PROJECTION DOMAIN DE-NOISING | 01-02-2014 |
20140112565 | IMAGING APPARATUS - The invention relates to an imaging apparatus ( | 04-24-2014 |
20140121510 | AGENT IMAGING | 05-01-2014 |
20140183371 | PHOTON COUNTING DETECTOR - A detector array includes at least one direct conversion detector pixel ( | 07-03-2014 |
20140306116 | DETECTION APPARATUS COMPRISING TWO SCINTILLATORS FOR DETECTING X-RAY RADIATION - Detection apparatus for detecting radiation The invention relates to a detection apparatus for detecting radiation. The detection apparatus comprises at least two scintillators ( | 10-16-2014 |
20140321617 | DETECTION APPARATUS FOR DETECTING RADIATION - The invention relates to a detection apparatus for detecting radiation. The detection apparatus comprises a GOS material ( | 10-30-2014 |
20140328464 | RADIOGRAPHIC APPARATUS FOR DETECTING PHOTONS WITH OFFSET CORRECTION - The invention relates to a detection apparatus for detecting photons, such as used in radiographic imaging systems. A detection unit ( | 11-06-2014 |
20140328466 | DETECTION APPARATUS FOR DETECTING PHOTONS TAKING PILE-UP EVENTS INTO ACCOUNT - The invention relates to a detection apparatus ( | 11-06-2014 |
20150063533 | HIGH FLUX PHOTON COUNTING DETECTOR ELECTRONICS - An imaging system ( | 03-05-2015 |