Patent application number | Description | Published |
20110002441 | HIGH-RESOLUTION QUASI-STATIC SETUP FOR X-RAY IMAGING WITH DISTRIBUTED SOURCES - A method for acquiring X-ray image data of an imaging volume is disclosed, the method using a detector and a distributed X-ray source structure having a plurality of single source elements, which are uniformly distributed with a common pitch to each other, the method comprises moving the distributed X-ray source structure and/or the detector with respect to the imaging volume, importantly, the maximum moving distance d | 01-06-2011 |
20110002517 | METHOD FOR ANALYZING A TUBE SYSTEM - A method of analyzing a tube system in particular by image processing of images of the tube system is provided by the present invention. In order to achieve a simulation of a medium flow through a calculated tube model, the present invention gathers a tube model from a specific tube data set. By defining the necessary parameters of a virtual injection of the medium by the user, the medium flows through the model. Using this displayed simulation for generating at least two images leads to an artificial image sequence that might support a person, which wants to examine a real structure, that corresponds to the calculated model. This might be seen in. | 01-06-2011 |
20110116702 | INTERACTIVE METHOD OF LOCATING A MIRROR LINE FOR USE IN DETERMINING ASYMMETRY OF AN IMAGE - A method and apparatus are provided for locating a mirror line for conducting a mirror analysis of an image by reflecting extracted image content from a portion of the image on one side of the mirror line and overlaying this reflected image content onto the corresponding portion of the image on the opposing side of the mirror line. The extracted image content that is reflected onto the corresponding portion of the image on the opposite side of the mirror line is continuously updated in real-time as the user manipulates the location or orientation of the mirror line. | 05-19-2011 |
20110211742 | PERFUSION IMAGING - A system includes a perfusion information determiner ( | 09-01-2011 |
20110261924 | ROTATIONAL X RAY DEVICE FOR PHASE CONTRAST IMAGING - The invention relates to a rotational X-ray device ( | 10-27-2011 |
20120033869 | PLAUSIBLE REFERENCE CURVES FOR DYNAMIC, CONTRAST-ENHANCED IMAGING STUDIES - A comprehensive strategy is used to determine valid reference time-concentration curves (TCCs) from image data. The image data corresponds to a series of image scans acquired over time for an area of interest of a patient to which a contrast agent was previously administered. The image scans are initially registered to a common coordinate system. Then, observed potential reference TCCs in the image scans are compared to modeled reference TCCs to determine if the potential reference TCCs are plausible reference TCCs. Thereafter, any plausible reference TCCs are evaluated to determine if they contain residual, isolated motion artifacts. If a plausible reference TCC does not include any motion artifacts, the plausible reference TCC is considered a valid reference TCC. If a plausible reference TCC is determined to include motion artifacts, the plausible reference TCC is modified to a valid reference TCC by removing the motion artifacts, or otherwise the plausible reference TCC is rejected. The valid reference TCCs can be used to improve the effectiveness of dynamic, contrast-enhanced imaging studies. | 02-09-2012 |
20120238888 | COLLATERAL BLOOD FLOW ASSESSMENT - A method includes obtaining both first inflow and first perfusion metrics for non-healthy tissue of interest, obtaining both second inflow and second perfusion metrics for healthy tissue of interest, and concurrently presenting both the first flow and perfusion metrics for the non-healthy tissue of interest and both the second flow and perfusion metrics for the healthy tissue of interest. | 09-20-2012 |
20120288180 | FUNCTIONAL IMAGING - A method includes determining, via a processor, functional information about tissue of interest in image data for a functional image acquisition based on reference information generated based on non-tissue of interest. | 11-15-2012 |
20130222430 | IMAGE ARTIFACT IDENTIFICATION AND MITIGATION - A method includes displaying at least one of projection data or reconstructed image data having visually observable artifacts, wherein the at least one of the projection data or the reconstructed image data corresponds to an imaging examination of an object or subject and displaying, concurrently with the at least one of the projection data or the reconstructed image data, sample images with known artifacts. The method further includes identifying one or more of the sample images having artifacts similar to the visually observable artifacts in the at least one of the projection data or the reconstructed image data. The method further includes displaying information about the identified one or more of the sample images, wherein the information includes information related to mitigating the visually observable artifacts. | 08-29-2013 |
20130243298 | DIAGNOSTIC IMAGE FEATURES CLOSE TO ARTIFACT SOURCES - When correcting for artifacts on an attenuation map caused by an artifact source in a computed tomography image, nuclear images are reconstructed two or more times, each time using a different correction technique or uncorrected attenuation data. Corresponding voxels in the reconstructed images are compared to identify local areas that change, i.e., are fragile and therefore low-confidence, and areas that do not vary or exhibit little variance among the plurality of reconstructed images and are thus accorded a higher confidence. The reconstructed nuclear image is overlaid with color encoding indicative of the amount of confidence accorded to each voxel value obtained by attenuation-corrected tomographic reconstruction. | 09-19-2013 |
20140014828 | ADAPTIVE CALIBRATION FOR TOMOGRAPHIC IMAGING SYSTEMS - A method comprises: acquiring imaging data using a tomographic radiological imaging apparatus ( | 01-16-2014 |
20140119611 | LIST MODE DYNAMIC IMAGE RECONSTRUCTION - A nuclear imaging apparatus ( | 05-01-2014 |
20140119630 | DOSE-OPTIMIZED PROTOCOL FOR AC AND LOCALIZATION ON HYPRID SCANNERS - A hybrid imaging system including a first imaging system configured to acquire low resolution anatomical data of a first field of view of an anatomical structure. A second imaging system is configured to acquire functional data of the first field of view of the anatomical structure. A reconstruction processor is configured to reconstruct the functional data based on attenuation data into an attenuation corrected image. In response to the attenuation corrected image showing regions of interest, with the first imaging system or another imaging system acquiring high resolution data of one or more portions of the first field of view containing the regions of interest. The reconstruction processor reconstructs the high resolution anatomical data into one or more high resolution images of the regions of interest. | 05-01-2014 |
20140257096 | DATA-DRIVEN OPTIMIZATION OF EVENT ACCEPTANCE/REJECTION LOGIC - In Positron Emission Tomography, a time window ( | 09-11-2014 |
Patent application number | Description | Published |
20080199048 | Image Processing System and Method for Alignment of Images - A medical imaging system in which a current (X-ray) image ( | 08-21-2008 |
20080205723 | Utilizing Physiological Models to Control Functional Acquisitions - Adaptively controlling an imaging system ( | 08-28-2008 |
20080294038 | Model-Based Flow Analysis and Visualization | 11-27-2008 |
20080294591 | Interactive Computer-Aided Diagnosis - Despite intense research activities in the field of computer-aided diagnosis methods of computer vision, automated classification or comparable algorithmic solutions are not regularly used and even less regularly trusted by physicians. According to an exemplary embodiment of the present invention, a confidence interval of the performed diagnosis is visualized and a standardized feedback mechanism is provided which allows for an interactive improvement of the method. | 11-27-2008 |
20080319309 | System, Apparatus, and Method for Repreoducible and Comparable Flow Acquisitions - A system, apparatus and method are provided for measuring and removing the influence of pulsatility on contrast agent flow in a region of interest of a vascular system of a patient. Once the change of blood speed over the cardiac cycle is known (pulsatility), this influence is removed from acquired image sequence for outcome control such that “quasi-stationary”, regular flow acquisition is passed on to subsequent visualization and analysis processes. A contrast agent injector is also provided that simultaneously measures and uses ECG to inject a known contrast agent at a fixed point over the cardiac cycle or such that a known amount of contrast agent will arrive at a known time at a region of interest in the vasculature of a patient, thus controlling one of the main unwanted variables in an acquisition of blood flow sequences. | 12-25-2008 |
20090116715 | MOTION-COMPENSATED CORONARY FLOW FROM PROJECTION IMAGING - Diagnostic angiograms only provide the projected lumen of a coronary, which is only an indirect measure of blood flow and pressure decline. According to an exemplary embodiment of the present invention, a motion compensated determination of a flow dynamics and a pressure decline for stenosis grading is provided, in which the motion compensation is performed on the basis of a tracking of a first position of a first marker and a second position of a second marker in the projection data set. This may provide for a robust and precise flow dynamics and pressure decline determination. | 05-07-2009 |