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Class 378/23 - Dynamic tomography


Subclass of Class 378 - X-ray or gamma ray systems or devices
Definition: Subject matter including the production of a set of radiographs
No. of patents: 89
Last issue date: 07/26/2011


1      
NumberTitleIssue Date
7986764X-ray laminography device, object imaging system, and method for operating a security system
An x-ray laminography device includes at least one x-ray detector and at least one x-ray source coupled in coordinated traversal with the at least one x-ray detector. The at least one x-ray source is configured to generate and transmit x-rays. The at least one x-ray...
07/26/2011
7831013Real-time motion tracking using tomosynthesis
One embodiment of the present disclosure sets forth a method for determining a movement of a target region using tomosynthesis. The method includes the steps of accessing a first set of projection radiographs of the target region over a first processing window defin...
11/09/2010
7453979Tomographic image obtainment apparatus and method
When radiographic images are obtained by radiography using a tomographic image obtainment apparatus, the degree of overlap of anatomical structures of a subject is obtained. Further, a condition of exposure, such as angles θ of radiography, is changed based on the ...
11/18/2008
7343196Cardiac CT system and method for planning and treatment of biventricular pacing using epicardial lead
A method for planning biventricular pacing lead placement for a patient includes obtaining acquisition data from a medical imaging system and generating a 3D model of the left ventricle and thoracic wall of the patient. One or more left ventricle anatomical landmark...
03/11/2008
7330528System and method for parallel image reconstruction of multiple depth layers of an object under inspection from radiographic images
A system and method are provided which enable parallel image reconstruction of multiple depth layers of an object. More specifically, a system and method are provided in which pixels are captured for an object and such pixels are processed to reconstruct voxels for ...
02/12/2008
7330609MTF measuring method and system
A method of measuring a modulation transfer function (MTF) includes detecting the center of a line spread function (LSF) image in order to calculate an MTF. For this purpose, an enlarged image of a portion of an image containing the LSF image is created, and binary-...
02/12/2008
7327872Method and system for registering 3D models of anatomical regions with projection images of the same
An imaging system for use in a medical intervention procedure is disclosed. A first image acquisition system of a first modality employing a catheter at an anatomical region of a patient is configured to produce a first image of the anatomical region using fluorosco...
02/05/2008
7315606X-ray imaging apparatus and its control method
In an X-ray imaging apparatus, which has a radiation source for generating radiation, and a detector for detecting the amount of radiation of the radiation, a subject is relatively rotated with respect to radiation which is radiated from the radiation source in the ...
01/01/2008
7313219Radiation image pick-up device, radiation image pick-up method and program
To provide a radiation image pick-up device capable of obtaining a plurality of tomography images through single-time image pick-up, a radiation image pick-up method and a program. When a position controller moves an X-ray source to an optional tomography pla...
12/25/2007
7310435Method and apparatus for extracting multi-dimensional structures using dynamic constraints
A technique is provided for segmenting a structure of interest from a volume dataset. The technique identifies regions of the structure using templates having characteristics of the structure of interest. The identified regions may then undergo a constrained growth ...
12/18/2007
7302031Method and arrangement relating to X-ray imaging
A novel X-ray apparatus is provided for three-dimensional imaging and in particular for tomosynthesis examination, which includes an X-ray source having a focal spot, a collimator including a plurality of slits, a detector assembly including a plurality of line dete...
11/27/2007
7272430Surgery support system and surgery support method
A first controller synthesizes image output of a CCU and a cursor created based on trigger information from a second controller, following location information. The synthesized image is displayed on a first monitor, so an endoscope image and a cursor image which mov...
09/18/2007
7260254Comparing images
Comparing first and second images taken on different imaging systems and under different exposure conditions is achieved by the steps of: applying a model to the data representing the first image, which model simulates at least one process step in the creation of sa...
08/21/2007
7245694X-ray mammography/tomosynthesis of patient's breast
A breast x-ray system and method using tomosynthesis imaging in which the x-ray source generally moves away from the patient's head. The system may include an operation mode in which it additionally takes mammogram image data. ...
07/17/2007
72456984-dimensional digital tomosynthesis and its applications in radiation therapy
A 4-dimensional digital tomosynthesis system includes an x-ray source, an x-ray detector and a processor. The x-ray source is suitable for emitting x-ray beams to an object with a periodic motion. The periodic motion is divided into (n+1) time intervals, n being a p...
07/17/2007
7212606Apparatus for radiographic projection tomography
In an apparatus for radiographic projection tomography, particularly mammography, an X-ray tube is mounted at the end of a swiveling arm, with a relative movement mechanism. The relative movement mechanism is such that it enables the tube to follow a path of a cyclo...
05/01/2007
7203350Display for computer-aided diagnosis of mammograms
A method for displaying a computer-generated determination of the likelihood of malignancy in a mammogram lesion. The method requires providing a digitized image of a mammogram, displaying the digitized image, and selecting a region of interest directly on the displ...
04/10/2007
7180977Scanning-based detection of ionizing radiaion for tomosynthesis
A scanning-based apparatus for obtaining tomosynthesis data of an object performing a periodic movement comprises a radiation source emitting radiation around an axis of symmetry; a radiation detector comprising line detectors, each being directed towards the diverg...
02/20/2007
7149335Method and apparatus for enhancing an image
A method for facilitating an enhancement of a visibility of an object in an x-ray image includes generating an x-ray image including at least one object, generating an estimate of a background surrounding the at least one object, subtracting the background estimate ...
12/12/2006
7142633Enhanced X-ray imaging system and method
Techniques are provided for generating three-dimensional images, such as may be used in mammography. In accordance with these techniques, projection images of an object of interest are acquired from different locations, such as by moving an X-ray source along an arb...
11/28/2006
7139364X-ray-tomographic imaging apparatus, X-ray-tomographic imaging method, and program
An X-ray-tomographic imaging apparatus for obtaining image data on a predetermined tomographic section of a subject with efficiency and effectiveness by using a plurality of X-ray projection images achieved by a plurality of X-rays that is made incident on the tomog...
11/21/2006
7127028Radiation image taking system
A tomosynthetic image taking apparatus takes an x-ray image of an object in each of a plurality of positions of an x-ray source to obtain a desired tomogram of the object by adding up the x-ray images thus obtained. A heartbeat phase is detected and the tomosyntheti...
10/24/2006
7110614Method and apparatus for reconstructing an image of an object
A method and apparatus for reconstructing an image of an organ or body part from at least two images of the organ or body part taken using radiography in two positions of the organ or body part separated by a rolling movement of the organ or body part. The rolling m...
09/19/2006
7110490Full field digital tomosynthesis method and apparatus
A tomosynthesis system for forming a three dimensional image of an object is provided. The system includes an X-ray source adapted to irradiate the object with a beam of X-rays from a plurality of positions in a sector, an X-ray detector positioned relative to the X...
09/19/2006
7103140Radiation image radiographic apparatus
A user-friendly, inexpensive radiation image radiographing apparatus capable of easily switching between absorption contrast image radiography and phase contrast image radiography. The radiation image radiographing apparatus has: a radiation source; a subject platfo...
09/05/2006
7098463Three-dimensional dosimeter for penetrating radiation and method of use
This invention relates to a method of forming a three-dimensional (3D) dosimetric map in a solid translucent or transparent polymer and to an article of manufacture comprising a polymer formulated to capture data imparted by incident penetrating radiation. The prese...
08/29/2006
7085406Method and system for unsupervised transfer function generation for images of rendered volumes
A method and system are provided for generating transfer functions for use in volume rendering of three-dimensional data of an object volume. The method comprises obtaining the three-dimensional data of the object volume, evaluating selected characteristics for a pl...
08/01/2006
7082184Tomosynthesis imaging method and apparatus for suppressing unnecessary irradiation
In the first process, imaging is performed to obtain a tomosynthesis surface setting image. In X-ray tomosynthesis imaging, a subject (9) to be imaged is imaged while laid down on a bed table (25). An X-ray generator (13) and X-ray image detecto...
07/25/2006
7075576CCD camera having an anti-stokes phosphor bound thereto
A camera includes a charge-coupled device (CCD). The CCD has an anti-stokes phosphor bound to the light receiving surface of the CCD. The anti-stokes phosphor emits electromagnetic radiation having wavelengths in the range of 950 nm to 1100 nm. A housing surrounds t...
07/11/2006
7065395Method and apparatus for cardiac radiological examination in coronary angiography
A method of cardiac radiological examination for coronarography comprises the steps of: a) introducing contrast medium simultaneously in the left coronary artery and in the right coronary artery from the aortic root and, in paralle...
06/20/2006
7043062Image processing method for displaying an image sequence of a deformable 3-D object with indications of the object wall motion
Image processing method for displaying an image sequence of a deformable 3-D object with indications of the object wall motions comprising steps of acquiring image data of an image sequence, segmenting the 3-D object in the images of the sequence for locating the wa...
05/09/2006
7020237Scanning-based detection of ionizing radiation for tomosynthesis
An apparatus for obtaining tomosynthesis data of an object comprises a source emitting radiation centered around an axis of symmetry; a radiation detector comprising a stack of line detectors, each being directed towards the source at a respective angle; and a devic...
03/28/2006
6994938Exposure method for producing a hologram mask
Methods for producing a hologram mask approximating the exposure produced by a non-holographic phase shifting photo mask are disclosed. One such method exposes a hologram recording material to a first object light, having passed through a first original mask and a f...
02/07/2006
6987829Non-iterative algebraic reconstruction technique for tomosynthesis
A method for obtaining a reconstruction of a tomographic dataset by filtering and combining the projection images, followed by a backprojection step. In one embodiment, the method can yield a reconstruction equivalent to an additive ART reconstruction, while in anot...
01/17/2006
6980624Non-uniform view weighting tomosynthesis method and apparatus
A technique is provided for non-uniform weighting in back-projection calculations in tomosythesis. The non-uniform weighting may include weighting based on a count map of the number of times pixels of individual slices are traversed by radiation in different project...
12/27/2005
6980682Method and apparatus for extracting a left ventricular endocardium from MR cardiac images
A method and apparatus is provided for segmenting a left ventricular endocardium in a magnetic resonance image. Image shape, size, gradients, intensity, and connectivity are used to locate the endocardial boundary. Specifically, a series of dilations and refinements...
12/27/2005
6978040Optical recovery of radiographic geometry
Processing of up to a plurality of radiographic images of a subject, includes the capture of at least two visible light images of the subject, two or more of the visible light images in correspondence to at least one radiographic image. The visible light images are ...
12/20/2005
6975894Digital topological analysis of trabecular bone MR images and prediction of osteoporosis fractures
The invention provides method, system and device for determining trabecular bone structure and strength by digital topological analysis, and offers, for the first time, a demonstration of superior associations between vertebral deformity and a number of architectura...
12/13/2005
6973160X-ray-tomographic imaging apparatus, X-ray-tomographic imaging method, and program
An X-ray-tomographic imaging apparatus for obtaining image data on a predetermined tomographic section of a subject with efficiency and effectiveness by using a plurality of X-ray projection images achieved by a plurality of X-rays that is made incident on the tomog...
12/06/2005
6970531Continuous scan RAD tomosynthesis system and method
An imaging system for performing tomosynthesis on a region of an object comprises an x-ray source, motion controller, an x-ray detector and a processing unit. The x-ray source is positioned at a predetermined distance from the object and continuously moves along a l...
11/29/2005
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