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| Number | Title | Issue Date |
| 8155264 | Gated computed tomography A computed tomography system (100) includes a windowing component (140) that receives an ECG signal that includes a premature heart cycle. The ECG signal is time-synchronized with x-ray projection data of a beating heart. The windowing component (14... | 04/10/2012 |
| 8130898 | Prospective cardiac gating in computed tomography A computed tomography scanner (10) acquires prospectively gated cardiac projection data. A scan controller (42) causes the scanner (10) to acquire projection data at the predicted location of a target cardiac phase in a cardiac cycle of the pati... | 03/06/2012 |
| 8126109 | X-ray CT apparatus and tomography method An index-value detecting unit detects an index value that indicates a contrast medium density in a Region Of Interest (ROI) set on an image reconstructed during a scan. A switch-timing detecting unit detects an inflection point appearing on a curve that indicates te... | 02/28/2012 |
| 8126110 | X-ray CT scanner and image creating method In an X-ray CT scanner having an X-ray tube which applies an X-ray spreading in a body axis direction of a subject, and an X-ray detector having a wide imaging range which detects the X-ray passed through the subject and converts the detected X-ray into an electric ... | 02/28/2012 |
| 8102963 | CT scanner using injected contrast agent and method of use A CT scanner includes a first X-ray beam source, and a second X-ray beam source. With such an apparatus, first source is used to monitor buildup of an injected contrast agent in a selected region of interest relative to a patient and at least the second source is us... | 01/24/2012 |
| 8094772 | Reconstruction unit for reconstructing a fine reproduction of at least a part of an object A reconstruction unit is provided for receiving a sequence of data sets, the data sets representing structural information of the object. The reconstruction unit performs receiving scheduling information related to the data sets of the sequence of data sets. Then re... | 01/10/2012 |
| 8054936 | Xenon CT apparatus, method of determining arterial blood rate constant, and method for calculating blood flow In a blood flow measuring apparatus, a data processor in a computer determines three parameters from a (ΔCT value of CT image data corresponding to) time-course change, consisting of a test region rate constant K, an arterial blood rate constant Ka, and a xenon par... | 11/08/2011 |
| 8041001 | Image diagnosing apparatus and image diagnosing method With the object of enabling a subject to be imaged at an appropriate timing of shooting, an image diagnosing apparatus for shooting an image of the subject in an imaging space has a voice guidance unit which reproduces and outputs to the subject a prescribed voice g... | 10/18/2011 |
| 8027427 | Systems and method for scanning a continuous stream of objects A method for scanning a stream of objects includes continuously acquiring raw data of the stream of objects using an X-ray system, that includes a detector. The raw data of the stream of objects is rebinned into at least one two-dimensional sinogram. A leading edge ... | 09/27/2011 |
| 8023616 | Method and apparatus for setting a dynamically adjustable position of an imaging system The invention relates to a method and an apparatus for setting a dynamically adjustable position of an imaging system for providing an optimum view onto a moving object during a medical intervention. A time-resolved at least three-dimensional data record of the movi... | 09/20/2011 |
| 8014489 | Radiographic imaging apparatus and method for controlling the same In a radiographic imaging apparatus capable of performing a first imaging in which radiographic imaging is performed with a first X-ray dose and a second imaging in which radiographic imaging is performed at a second X-ray dose that is less than the first X-ray dose... | 09/06/2011 |
| 8009795 | Image processing apparatus and X-ray computer tomography apparatus An image processing apparatus includes a storage unit which stores the data of a plurality of images including an examination target organ of an object, a reference point determining unit which determines, from each of the images, a reference point which is located ... | 08/30/2011 |
| 7983383 | X-ray CT apparatus An X-ray CT apparatus comprising: a scanner unit for rotating one or more X-ray sources for applying X-ray beams having different energy spectra to an object, and detectors disposed opposed to the X-ray sources for detecting transmitted X-ray data on the object, aro... | 07/19/2011 |
| 7970097 | Method for producing tomographic images, control device, tomography unit and computer program product A method is disclosed for producing tomographic images relating to different movement phases of a periodically moving object with the use of a tomography unit that includes a recording system that is arranged rotatably about a z-axis of the tomography unit, the reco... | 06/28/2011 |
| 7940886 | 3D medical anatomical image system using 2D images A medical imaging system generates 3D anatomical images from acquired 2D anatomical images. The system includes a synchronization processor for providing a synchronization signal identifying a particular phase of heart operation of a particular patient. An image acq... | 05/10/2011 |
| 7933377 | Method of CT perfusion imaging and apparatus for implementing same A CT system includes a scintillator array having a first length in an axial direction of the CT system, the scintillator array includes a plurality of scintillator cells along the first length. The CT system includes a controller configured to repeatedly position a ... | 04/26/2011 |
| 7924972 | 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... | 04/12/2011 |
| 7924971 | Radiographic apparatus For Respiration Correlated Cone Beam CT scanning, we have observed that improvements in the frame rate are in fact undesirable. We therefore propose a radiographic apparatus comprising a beam of radiation and a detector therefor, adapted to obtain a two dimensional ... | 04/12/2011 |
| 7912175 | X-ray CT apparatus and X-ray CT scanning method The present invention is directed to realize an X-ray CT apparatus for properly performing contrast imaging. An X-ray CT apparatus includes an imaging unit and a control unit for controlling the imaging unit. The control unit includes: a first control unit for perfo... | 03/22/2011 |
| 7907698 | Gated CT with irregular sampling for slow CT acquisition A physiological parameter monitor (44) monitors a cyclic physiological parameter and generates a cyclic parameter phase indicative signal. A radiation system (8) is disposed adjacent an examination region (18, 28) to generate transmission radiat... | 03/15/2011 |
| 7894571 | System and method for using prospective evaluation of displacement and velocity of a respiratory trace in a five dimensional parameter space to reduce artifacts and dosage in four dimensional computed tomography A displacement and velocity based prospective cine CT (PDV CT) method is disclosed for starting image acquisition if the displacement and velocity are simultaneously within predetermined tolerances, thus essentially sorting 2D CT images in a five dimensional paramet... | 02/22/2011 |
| 7894570 | Automatic dose adaptation as a function of patient body mass index in CT calcium scoring A weight (22) and height (24) of a patient who is to undergo a calcium screening examination in an x-ray diagnostic scanner (10) is used to calculate an appropriate x-ray dose in terms of tube current (mAs) for the calcium screening examination ... | 02/22/2011 |
| 7889835 | System and method for detecting an object by dynamically adjusting computational load A system and method for ascertaining the identity of an object within an enclosed article. The system includes an acquisition subsystem, a reconstruction subsystem, a computer-aided detection (CAD) subsystem, and an alarm resolution subsystem. The acquisition subsys... | 02/15/2011 |
| 7885374 | X-ray CT apparatus, a method for changing the helical pitch, an image reconstruction processing apparatus, an image reconstruction processing method, and an image reconstruction processing program An X-ray computed tomography (CT) apparatus having an X-ray tube emitting an X-ray, a detector detecting X-rays transmitted through a subject to be examined, and a bed on which said subject to be examined is placed, said X-ray CT apparatus reconstructing the image o... | 02/08/2011 |
| 7860209 | Method for imaging an organ, control device for a computed tomography system, computed tomography system and a computer program product A method is described for imaging an organ in a human or animal body via a computed tomography system having an X-ray radiation source which rotates around the body along a circumferential ring. In at least one embodiment, the circumferential ring in each case is fi... | 12/28/2010 |
| 7856077 | CT scanner and method for helical scanning of an examination object which has at least one portion undergoing periodic motion At least one embodiment of the present invention relates to a CT scanner and/or a method for helical scanning of an examination object which has at least one portion undergoing periodic motion. In at least one embodiment, the CT scanner includes at least one bearing... | 12/21/2010 |
| 7831011 | Computed tomography method and system An method of computed tomography is disclosed herein. The method includes acquiring an axial dataset and acquiring a helical dataset as part of an acquisition protocol. A computed tomography system is also disclosed. ... | 11/09/2010 |
| 7822170 | Method, tomography system and image processing system for displaying tomographic records of a patient A method and a tomographic system are disclosed for displaying tomographic records of a patient. In at least one embodiment, the method includes scanning the patient with the aid of a tomographic system having one system axis, determining at least one topogram, calc... | 10/26/2010 |
| 7813473 | Method and apparatus for generating temporally interpolated projections A technique is provided for the temporal interpolation of a projection data set acquired of a dynamic object, such as a heart. The projection data set is acquired using a slowly rotating gantry and a distributed X-ray source. The projection data may be interpolated ... | 10/12/2010 |
| 7792240 | X-ray CT apparatus An X-ray CT apparatus in which phase information on a moving part of an object performing periodic motions is obtained externally, projection data corresponding to desired phase information out of the above phase information is stored while being associated therewit... | 09/07/2010 |
| 7782998 | Method and apparatus for correcting motion in image reconstruction A plurality of projection images are acquired over an angular range during the slow rotation of a C-arm gantry having a source and detector. Phase-specific reconstructions are generated from the plurality of projections, wherein each phase-specific reconstruction is... | 08/24/2010 |
| 7778385 | Step-and-shoot cardiac CT imaging The present invention is directed to a method and system of controlling rotation of a gantry to rotate at a rotational speed such that a desired relationship between center projection angles of neighboring partial scans is maintained. ... | 08/17/2010 |
| 7764762 | Radiation CT apparatus and radiation CT method A region of interest information obtaining section obtains the size and position of a region of interest within a radiation image of a subject. A position calculating section calculates positions for a radiation source and a detecting panel that enable appropriate r... | 07/27/2010 |
| 7756241 | X-ray computed tomography apparatus and tomographic method An X-ray CT apparatus detects a predetermined characteristic wave from each electrocardiographic waveform acquired from an electrocardiograph, predicts intervals with which the characteristic wave appears based on appearance times of the detected predetermined chara... | 07/13/2010 |
| 7734007 | X-ray imaging system for performing automated imaging of patient anatomy An X-ray imaging system performs automated imaging of patient anatomy. A collimator includes at least one portion of X-ray absorbent material automatically adjustable to alter the dimensions of a spatial cross section of an X-ray beam of radiation, in response to a ... | 06/08/2010 |
| 7734005 | Step-and-shoot cardiac CT imaging The present invention is directed to a method and system of controlling rotation of a gantry to rotate at a rotational speed such that a desired relationship between center projection angles of neighboring partial scans is maintained. ... | 06/08/2010 |
| 7734006 | X-ray CT apparatus In the X-ray CT apparatus of the present invention, the setting device sets X-ray irradiation condition candidate by at least one combination of a tube current and tube voltage for power to be supplied to the X-ray source by the use of an X-ray absorption coefficien... | 06/08/2010 |
| 7715520 | X-ray computed tomography apparatus An X-ray computed tomography apparatus includes an X-ray source, a high voltage generating unit, an X-ray detector detecting X-rays transmitted through a subject to generate projection data, a storage unit storing the projection data in association with electrocardi... | 05/11/2010 |
| 7715521 | Imaging method and modality for medical application A CT scanner pre-scans a patient by radiating rays of a lower amount from one direction to obtain a perspective prescanning image. An operator defines a main scanning area, in which images for medical application are to be captured, with reference to the prescanning... | 05/11/2010 |
| 7711080 | Computed tomography method and apparatus for a dynamic image of a moving site When a repeatedly periodically moving site of a to-be-examined subject in a gantry is subjected to computed tomography and is reconstructed, the gantry is rotated in synchronization with the movement of the periodically moving site, and a dynamic image showing a tra... | 05/04/2010 |
