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| Number | Title | Issue Date |
| 8107592 | Method of reconstructing computed tomography (CT) volumes suitable for execution on commodity central processing units (CPUS) and graphics processors, and apparatus operating in accord with those methods (rotational X-ray on GPUs) The invention provides in one aspect methods and apparatus for use with C-arm and other CT systems, e.g., with non-rigid geometries. In such systems, by way of example, calibration can be performed to determine the exact position of the x-ray source and the exact or... | 01/31/2012 |
| 7778392 | Method of reconstructing computed tomography (CT) volumes suitable for execution on commodity central processing units (CPUs) and graphics processors, and apparatus operating in accord with those methods (rotational X-ray on GPUs) The invention provides in one aspect methods and apparatus for use with C-arm and other CT systems, e.g., with non-rigid geometries. In such systems, by way of example, calibration can be performed to determine the exact position of the x-ray source and the exact or... | 08/17/2010 |
| 7443947 | Method and apparatus for improved radiation detection In a method for measuring detected radiation, an analog data signal is converted to a digital data signal having aperiodic data pulses varying with intensity of the analog data signal. A time signal indicative of data intervals is produced. The data pulses are count... | 10/28/2008 |
| 7406150 | Distributed architecture for mammographic image acquisition and processing A distributed architecture allows for decoupling of mammographic image acquisition and review, thereby enabling more efficient use of resources and enhanced processing. In one embodiment, the system (100) includes a number of image acquisition stations (10... | 07/29/2008 |
| 7379531 | Beam therapy treatment user interface monitoring and recording system A system uses a digital photographic camera attached to a radiation therapy device to create an overlay of radiation beam information comprising data identifying treated patient anatomical region data and supporting determination of cumulative radiation treatment in... | 05/27/2008 |
| 7376215 | Measurement of ash composition using scanning high voltage X-ray sensor A system, method and computer program product is provided that enables measurement and determination of the relative material composition of ash content in a paper product. While materials in ash content, e.g., CaCaO3, Clay, and TiO2, have dist... | 05/20/2008 |
| 7372937 | Systems and methods of non-standard spiral cone-beam computed tomograpy (CT) Provided herein are methods of reconstructing an image from projection data provided by a tomography scanner that is based on geometric optics comprising scanning an object in a cone-beam imaging geometry following a non-standard spiral path or a general piecewise s... | 05/13/2008 |
| 7366277 | Tomographic device and method therefor An image reconstruction area of a subject is divided into a plurality of image data segments, among projection data obtained by projection, projection data segments necessary for back projection processing are cut out for every image data segments and back projectio... | 04/29/2008 |
| 7366278 | DRR generation using a non-linear attenuation model A method and system are presented for generating a DRR of an anatomical region so that the visibility within the DRR of one or more skeletal reference structures is enhanced. 3D scan data, which have been obtained from a 3D scan of the object conducted at a 3D scan ... | 04/29/2008 |
| 7364358 | System and method for X-ray system status indication A status indication device configured for use in an x-ray system is disclosed. The device includes an audio receiver, a processor, a tone generator, and an adjustment mechanism. The audio receiver is configured and disposed to collect audio information surrounding t... | 04/29/2008 |
| 7362843 | System and method for reconstruction of cone beam tomographic projections with missing data A method for reconstructing image data from acquired tomographic projection data measurements is provided. The projection data measurements comprise one or more missing data measurements. The method comprises generating a coarse-resolution projection data set from t... | 04/22/2008 |
| 7362844 | Tomography appliance, and method for a tomography appliance A tomography appliance and method for a tomography appliance make it possible to calculate, in a simple and efficient manner, detector-element-related coefficients of an intensity function dependent on the detector output signal and to calculate the X-ray-emitter-re... | 04/22/2008 |
| 7359477 | Method for reconstructing a CT image using an algorithm for a short-scan circle combined with various lines In a method for reconstructing a CT image from data acquired from an examination subject, a reconstruction algorithm is employed that is based on an ideal short-scan circle-and-line trajectory. To adapt the reconstruction algorithm to a “real world” scan traject... | 04/15/2008 |
| 7354196 | Device for recording projection images An x-ray device for recording projection images of a patient features a C-arm on the ends of which an x-ray source and an x-ray detector are accommodated. The x-ray detector is accommodated on the C-arm so that translation movements can be executed with the x-ray de... | 04/08/2008 |
| 7356125 | Arrangement for collimating electromagnetic radiation The invention relates to an arrangement for collimating electromagnetic radiation, comprising a macrocollimator which has at least two cutouts, and microcollimator structures which are positioned in the cutouts of the macrocollimator and have lamellae that absorb el... | 04/08/2008 |
| 7356118 | Angled-beam detection system for container inspection A non-intrusive inspection system, including apparatuses and methods, for non-intrusively inspecting containers such as, without limitation, those employed to transport items in international commerce. The non-intrusive inspection system is configured to generate an... | 04/08/2008 |
| 7348564 | Multi modality imaging methods and apparatus A method for correcting emission data from Positron Emission Tomography (PET) or SPECT includes generating a plurality of computed tomography (CT) image data, selecting a portion of the CT image data, processing the selected CT data to generate a plurality of attenu... | 03/25/2008 |
| 7323689 | Attenuation correction in nuclear medicine studies by simultaneous transmission and emission data measurement and estimation of emission-to-transmission crosstalk Attenuation correction in SPECT studies such as cardiac function imaging is carried out using an iterative statistically-based transmission projection reconstruction algorithm that is capable of modeling overlapping transmission beams from a line source array of rad... | 01/29/2008 |
| 7313218 | Radiographic apparatus and radiation detection signal processing method A radiographic apparatus removes lag-behind parts from radiation detection signals taken from an FPD as X rays are emitted from an X-ray tube, on an assumption that the lag-behind part included in each X-ray detection signal is due to an impulse response formed of a... | 12/25/2007 |
| 7310403 | Target reconstruction A method for real-time target reconstruction from target image projections including dividing an object into external and internal sub-objects, acquiring external sub-object data, acquiring internal projections, each internal projection including an internal-interna... | 12/18/2007 |
| 7302041 | Method for estimating the remaining life span of an X-ray radiator In a method for estimating the remaining life span of an X-ray radiator that has been installed in an X-ray apparatus and is operational, under specified test conditions and at time intervals, a measurement value that is indicative for the remaining life span of the... | 11/27/2007 |
| 7283605 | Methods and apparatus for scatter correction A method for reconstructing an image of an object includes scanning the object with a computed tomography (CT) system to obtain data, estimating a size of the object using the obtained data, using the estimated size of the object to perform scatter correction on the... | 10/16/2007 |
| 7277524 | Method for detecting and visualizing dynamic processes in an object volume A method is disclosed for a multislice computer assisted tomograph, capable of carrying out a spiral scan of an object volume with a pitch p selected to be small enough that each slice of the object volume is multiply detected during the spiral scan. The method incl... | 10/02/2007 |
| 7274771 | Methods and systems for controlling exposure for medical imaging devices Methods and systems for controlling exposure for medical imaging devices is provided. The method includes varying the exposure level of X-rays within an X-ray imaging system to generate a plurality of images having different exposure levels and combining the plurali... | 09/25/2007 |
| 7274765 | Rotating data transmission device for multiple channels A device for signal transmission in computer tomographs comprising a rotating part supported to be rotatable with respect to a stationary part. A transmission controller is provided on the rotating part for compiling, from video data of a video source and from contr... | 09/25/2007 |
| 7271391 | Radiographic imaging apparatus and system, method therefor, and program A radiographic imaging apparatus includes an imaging means which captures a radiation image based on a radiation pulse emitted from a radiation generator, a radiation pulse detection means which detects the radiation pulse, and a control means which controls the ima... | 09/18/2007 |
| 7272207 | Processes and apparatus for variable binning of data in non-destructive imaging Systems, processes and apparatus are described through which non-destructive imaging is achieved, including a process for variable binning of detector elements. The process includes accepting input data indicative of image quality goals and descriptors of an imaging... | 09/18/2007 |
| 7269241 | Method and arrangement for medical X-ray imaging and reconstruction from sparse data The invention relates to a medical X-ray device 5 arrangement for producing three-dimensional information of an object 4 in a medical X-ray imaging medical X-ray device arrangement comprising an X-ray source 2 for X-radiating the object from dif... | 09/11/2007 |
| 7258484 | Protective garment The invention relates to a device arrangement for intraoral X-ray imaging comprising an X-ray source unit for generating X-radiation and an intraoral sensor placed in the mouth for X-ray imaging, which receives X-radiation for compiling X-ray image data. The device ... | 08/21/2007 |
| 7260175 | CT image producing method and X-ray CT apparatus A method for producing a CT image by applying Z-filtering to axial scan data collected using a multi-row detector, wherein second axial scan data is collected at a second position Z2 to which an X-ray tube and a multi-row detector are rectilinearly moved rela... | 08/21/2007 |
| 7257189 | Method and system for certifying operators of x-ray inspection systems A method and system for using Threat Imaging Projection (TIP) technology, and the operator testing data that it generates, in order to certify x-ray inspection system operators and thereby assure an acceptable and uniform level of operator performance. In a preferre... | 08/14/2007 |
| 7254209 | Iterative CT reconstruction method using multi-modal edge information A computed tomography (CT) reconstruction method includes implementing an iterative image reconstruction process for CT metrology of an object, wherein the iterative reconstruction process utilizes accurate forward projection. During each of a plurality of iteration... | 08/07/2007 |
| 7251306 | Methods, apparatus, and software to facilitate iterative reconstruction of images A method of reconstructing an image includes performing an iterative CT X-ray image reconstruction using a model including a point spread function (PSF) to reconstruct an image. ... | 07/31/2007 |
| 7224763 | Method of and system for X-ray spectral correction in multi-energy computed tomography A method of and a system for spectral correction in multi-energy computed tomography are provided to correct reconstructed images, including high-energy CT images and Z (effective atomic number) images, for spectral variations, which include time variations on a sca... | 05/29/2007 |
| 7215731 | Fast backprojection/reprojection with hexagonal segmentation of image A reprojection/backprojection technique and apparatus for carrying out such a technique provides a hierarchical solution to speeding-up reprojection and backprojection of tomographic images. In the context of reprojection, a tomographic image is divided into a serie... | 05/08/2007 |
| 7215732 | Method and system for CT reconstruction with pre-correction A method for reconstructing image data from measured sinogram data acquired from a CT system is provided. The CT system is configured for industrial imaging. The method includes pre-processing the measured sinogram data. The pre-processing includes performing a beam... | 05/08/2007 |
| 7203267 | System and method for boundary estimation using CT metrology A technique is provided for CT reconstruction for use in CT metrology. The boundary based CT reconstruction method includes the steps of initializing a boundary of an object to obtain a boundary estimate, defining a forward model based on the boundary estimate, line... | 04/10/2007 |
| 7203272 | Cone-beam filtered backprojection image reconstruction method for short trajectories An image reconstruction method for cone beam x-ray attenuation data acquired over a super-short-scan, short-scan or full-scan includes backproejcting over three adjacent segments of the arc traversed by the x-ray source. Each backprojection consists of a weighted co... | 04/10/2007 |
| 7189000 | Image-quality control system An image-quality control system including a terminal connected to medical diagnostic imaging apparatus and a service center system for transmitting a maintenance report of the medical diagnostic imaging apparatus to the terminal. The terminal includes a first receiv... | 03/13/2007 |
| 7173996 | Methods and apparatus for 3D reconstruction in helical cone beam volumetric CT A method for reconstructing an image of an object utilizing a cone-beam volumetric computed tomographic imaging apparatus includes helically scanning the object with a radiation source utilizing the cone-beam volumetric computed tomographic imaging apparatus; select... | 02/06/2007 |
