| Patent application number | Description | Published |
|---|
| 20080205722 | Method and Apparatus for Automatic 4D Coronary Modeling and Motion Vector Field Estimation - A method for computer-aided four-dimensional (4D) modeling of an anatomical object comprises acquiring a set of three-dimensional (3D) models representing a plurality of static states of the object throughout a cycle. A 4D correspondency estimation is performed on the set of 3D models to determine which points of the 3D models most likely correspond to each other, wherein the 4D correspondency estimation includes one or more of (i) defining a reference phase, (ii) performing vessel-oriented correspondency estimation, and (iii) post-processing of 4D motion data. The method further comprises automatic 3D modeling with a front propagation algorithm. | 08-28-2008 |
| 20080218510 | 3D-2D Adaptive Shape Model Supported Motion Compensated Recnstruction - A method for generating or reconstruction of three-dimensional (3D) images corresponding to a structure of interest ( | 09-11-2008 |
| 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 |
| 20090154787 | IMAGE RECONSTRUCTION DEVICE AND METHOD - The present invention relates to an image reconstruction device and a corresponding method for reconstructing a 3D image of an object ( | 06-18-2009 |
| 20090238412 | LOCAL MOTION COMPENSATED RECONSTRUCTION OF STENOSIS - The analysis of a stenosis of a coronary vessel in three dimensions requires a motion compensated reconstruction. According to an exemplary embodiment of the present invention, an examination apparatus for local motion compensated reconstruction data set is provided, wherein the local motion compensated reconstruction vectors relating to a start point and an end point of the stenosis. | 09-24-2009 |
| 20100014726 | HIERARCHICAL MOTION ESTIMATION - In three-dimensional rotational x-ray coronary imaging problems may arise when estimating the motion of small vessels. According to an exemplary embodiment of the present invention, an examination apparatus is provided which is adapted for performing a hierarchical motion estimation by global affine transformation for every heart phase, followed by vessel branch selective affine and non-affine transformations. This may provide for an improved image quality. | 01-21-2010 |
| 20100189337 | METHOD FOR ACQUIRING 3-DIMENSIONAL IMAGES OF CORONARY VESSELS, PARTICULARLY OF CORONARY VEINS - A method and an apparatus for acquiring 3-dimensional images of coronary vessels ( | 07-29-2010 |
| 20100201786 | METHOD AND APPARATUS FOR RECONSTRUCTING AN IMAGE - A reconstruction method for an image of an object under examination is provided, wherein the method comprises, receiving a first projection data set representing three-dimensional information about said object under examination and reconstructing at least one three-dimensional image out of the first projection data set. Further, a second projection data set representing two-dimensional information about the object under examination is received, wherein the second data set was recorded under a first direction and wherein a two-dimensional image out of the second projection data set is generated. Furthermore, a volume rendered projection is reconstructed out of the at least one three-dimensional image using the first direction as the reconstruction direction of the volume rendered projection and the two-dimensional image and the volume rendered projection are overlaid. | 08-12-2010 |
| 20100232672 | PROJECTION-BASED REMOVAL OF HIGH-CONTRAST OBJECTS | 09-16-2010 |
| 20100295846 | FOUR-DIMENSIONAL RECONSTRUCTION OF REGIONS EXHIBITING MULTIPLE PHASES OF PERIODIC MOTION - A method for four dimensional reconstruction of regions exhibiting multiple phases of periodic motion includes the operation of building one or more 3-D reconstructions using a set of 2-D projections. The method further includes the operation of deriving one or more 3-D model segments from each of the one or more 3-D reconstructions, wherein a plurality of 3-D model segments are formed thereby, and wherein each of the one or more 3-D model segments is derived from a single one of the one or more 3-D model segments. The plurality of derived 3-D model segments forms a 4-D reconstruction of the region of interest. | 11-25-2010 |
| 20100316270 | 3D RECONSTRUCTION OF A BODY AND OF A BODY CONTOUR - The invention proposes a 3D reconstruction of a body and a body contour from transversally truncated projections using a polyhedral object model. Possible clinical applications arise in the field of guided biopsies on acquisition systems equipped with a flat panel detector, where truncated projections cannot be avoided in thorax and abdominal scan protocols. From, for example, a rotational run both a 3D volume reconstruction and a surface mesh reconstruction of a patient's shape is generated and then visualized simultaneously in order to help the physician guide the biopsy device and judge the distance from the patient's skin to the tissue of interest inside the reconstructed volume. | 12-16-2010 |
| 20110058723 | APPARATUS FOR GENERATING AN IMAGE OF MOVING OBJECT - The present invention relates to an apparatus for generating an image of a moving object, wherein a movement of the object comprises a multiple of moving phases. The apparatus comprises a measured detection data providing unit ( | 03-10-2011 |
