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8184768 |
X-ray CT apparatus and method for controlling X-ray tube
This embodiment is provided with a detector configured to detect an X-ray radiated from an X-ray tube, a reconstructing part configured to reconstruct an image from projection data based on the...
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8184775 |
Dynamic collimator for wide coverage and low dose cardiac CT imaging
A CT scanner comprising a dynamic collimator disposed near an x-ray source and a controller configured to rotate the x-ray source about a subject, wherein imaging data is acquired from a single...
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8170646 |
Dynamic radiographic image obtaining method and apparatus
A method and apparatus for obtaining a dynamic radiographic image with enhanced resolution, in which an electrocardiogram of a subject is obtained, and five time phases are allocated to each...
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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...
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RE43272 |
X-ray computerized tomographic apparatus
An X-ray computerized tomographic apparatus includes an X-ray tube device configured to irradiate an object to be examined with a pyramidal X-ray beam, a detector which has a plurality of detecting...
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8139836 |
Automatic segmentation of the heart and aorta in medical 3-D scans without contrast media injections
A method automatically segments the heart and abdominal aorta from volumetric images without the need to inject iodine contrast media into the subject. The method automatically quantifies arterial...
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8135186 |
Method and system for image reconstruction
Disclosed is an imaging system including a source generating an x-ray beam, a detector array receiving the x-ray beam and generating projection data, a translatable table configured for disposal of...
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8135192 |
Image processing apparatus and image processing method
An image processing apparatus for extracting images from a continuous image sequence includes a storage unit that stores image information about images constituting the image sequence; an image...
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8131043 |
Method and apparatus for detecting interventricular dyssynchrony
Several embodiments of a method and apparatus for detecting interventricular dyssynchrony are provided. In one embodiment, the apparatus includes an image segment processor and an image classifier....
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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...
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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...
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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...
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8103075 |
Method for providing extended possibilities when imaging a patient's heart
The invention relates to the use of 2D projection images which belong to a specific common heart phase. A 3D image data set can be used to generate a reference projection image for the same...
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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...
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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...
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8090182 |
Image reconstruction device, image reconstruction method, image reconstruction program, and CT apparatus
A computerized tomography apparatus and program for obtaining a cross-sectional image corresponding to projections are provided in which, for a temporary cross-sectional image f(x, y) obtained in...
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8090171 |
Image data subtraction system suitable for use in angiography
An image data subtraction system suitable for use in Angiography or other medical procedure enhances vessel visualization. The system comprises an imaging system for acquiring, during a medical...
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8090175 |
Target tracking using direct target registration
Systems, methods and apparatus to detect a treatment target having motion in up to three translational directions using direct registration of the target and track the target to synchronize a...
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8077825 |
Jitter-free spatial triggering of a detector of a CT system
A method is disclosed for acquiring measured data by way of a computed tomography system, wherein the measured data is acquired by a detector unit disposed opposite the radiation source during a...
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8068651 |
Medical imaging diagnosis apparatus
The medical imaging diagnosis apparatus includes: a region-of-interest setting unit configured to acquire an image of an examination target region in the body of a subject, and thus to set up, on...
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8064569 |
X-ray CT imaging apparatus and imaging control method therefor
An X-ray CT imaging apparatus includes an X-ray generating section, an X-ray image capturing section, a supporting section, a holding section, a rotation driving section, and an X-ray controlling...
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8059874 |
Method for producing a three-dimensional image dataset of a target volume
The invention relates to a method for producing a three-dimensional image dataset of a target volume by using an examination facility having at least two image recording facilities, each featuring...
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8055045 |
Method and system for collecting image data from image data collection range including periodically moving part
A method includes a periodic motion data input step S208 of receiving input of periodic motion data indicating changes of the periodic motion with time in an object to be examined who is a target...
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8055049 |
Motion correction for CT using marker projections
A method of correcting for motion of a patient during a CT scan includes observing positions of radio-opaque markers in a series of two dimensional x-ray projections taken by a scanner. The markers...
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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 ...
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8045771 |
System and method for automated patient anatomy localization
A method of imaging comprises performing a scout image of an object and aligning major regions of interest within the object by comparing the scout image with a pre-determined atlas image. In a...
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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...
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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...
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8027526 |
Method for providing a 3D X-ray image dataset of a patient's heart
X-ray images are recorded of a patient's heart and the heartbeat phase is registered as that is done. The heartbeat phases are coarsely divided into intervals and all X-ray images that have been...
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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...
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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...
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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...
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7991108 |
Medical image processing apparatus, ultrasound imaging apparatus, X-ray CT (computed tomography) apparatus, and method of processing medical image
A cardiac cavity region specifying part specifies the position of a cardiac cavity region represented in volume data. An image generation plane determining part determines an image generation plane...
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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...
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7983385 |
Fly-by scanning
A computed tomography system (100) includes an x-ray source (112) that rotates about an examination region (108) and translates along a longitudinal axis (120). The x-ray source (112) remains at a...
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7970196 |
Automatic detection and quantification of plaque in the coronary arteries of subjects from CT scans
A method automatically detects and quantifies arterial plaque (hard plaque, soft plaque or both) in the coronary arteries of the heart from CT images. The method uses plaque definitions based on...
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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...
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7953267 |
Method for the three-dimensional representation of a structure influenced by a periodic process, and medical imaging system
There is described a method for a periodic and three-dimensional representation of a periodically variable structure. A number of rotation images is generated for this purpose. The required...
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7945080 |
Method for visualizing damage in the myocardium
A method is disclosed for visualizing damage in the myocardium. In such a method, CT image data of the heart are made available which were recorded with injection of contrast medium. The myocardium...
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7940892 |
Energy substraction method and apparatus
The energy subtraction apparatus of the present invention comprises an image input device which inputs two or more different kinds of radiographic images having been taken by irradiating a subject...
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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...
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7940887 |
Radiographic apparatus
An X-ray tube and a flat panel X-ray detector (FPD) are constructed movable parallel to each other in the same direction along a body axis which is a longitudinal direction of a patient. The X-ray...
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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...
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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....
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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...
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7920671 |
X-ray CT apparatus and control method of X-ray CT apparatus
An X-ray CT apparatus has a setting unit, a generating unit, a calculation unit, and a determination unit. The setting unit sets a required width of a group of X-ray detection elements in a row...
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7920670 |
Keyhole computed tomography
A method of acquiring and reconstructing a computed tomography (CT) image is provided. A first scan of the full field of view (FOV) is acquired. A second scan of a smaller target FOV is then...
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7916827 |
Method for evaluating projection datasets of an object undergoing examination
The invention relates to a method for evaluating projection datasets of an object undergoing examination. Each projection dataset is assigned a swiveling angle and a recording instant. Each data...
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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...
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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...
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