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Tomography (e.g., Cat Scanner)

Tomography (e.g., Cat Scanner) patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

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Image Analysis


Applications > Dna Or Rna Pattern Reading > Tomography (e.g., Cat Scanner)



Methods and apparatus to estimate ventricular volumes
05/28/15 - 20150146950 - Methods and apparatus to estimate ventricular volumes are disclosed. An example computer-implemented method includes preparing a sample set using a prior probability model for a left ventricle and a right ventricle and using a likelihood function to assign a weight to each sample within the sample set. The example method...

Method and system for quantitative evaluation of image segmentation
05/28/15 - 20150146951 - A system and method for receiving a medical image, receiving an adaptation of a model of a physical structure, the adaptation relating to the medical image, determining an image quantity of the medical image at each of a plurality of vertices of the adaptation and aggregating the plurality of image...

Scatter component estimating method
05/28/15 - 20150146952 - In a reconstruction processing (S1), reconstruction processing is performed to list mode data to firstly capture a reconstruction image. Then, in a projection step (S2), the reconstruction image obtained in the reconstruction processing step is projected to capture a projection image. In a scatter component extracting step S4, low-frequency components...

Image processing apparatus and method, and ultrasonic diagnostic apparatus
05/28/15 - 20150146953 - An image processing apparatus includes: when a probe is moved, a shift amount correction section configured to correct an amount of shift from a first frame to a second frame being a frame at different time from the first frame; and a distortion amount calculation section configured to calculate an...

Information processing apparatus and control method thereof
05/28/15 - 20150146954 - An information processing method includes: converting voxel data to node data in which a voxel, which has a brightness value that is outside a certain brightness value range, is set as a first node, and a voxel, which has a brightness value that is within the certain brightness value range,...

Method and apparatus for reducing artifacts in computed tomography image reconstruction
05/28/15 - 20150146955 - The present invention provides a method and apparatus for reducing artifacts in CT image reconstruction. The method comprises obtaining an original reconstructed image and an original sinogram and determining a proportion of metal pixels in the original reconstructed image. If the proportion is greater than a first threshold value, then...

Method and system to process magnetic resonance diffusion image data
05/28/15 - 20150146956 - In a method, a user interface, a magnetic resonance apparatus, and a storage medium encoded with programming instructions, in order to enable processing and/or display of magnetic resonance diffusion image data, diffusion image data are provided to a computer, a signal threshold are provided to a computer, and a b-value...

System and method for hybrid local tomography image reconstruction
05/28/15 - 20150146957 - Methods, processes and systems of image reconstruction utilizing a hybrid local tomography (HLT) methodology for reconstructing internal body images in medical applications, and the like. The system and method of the present invention provides an image with emphasized edges, and the image provides estimations of the attenuation coefficient inside the...

Apparatus and method for detecting error in lesion contour, apparatus and method for correcting error in lesion contour, and apparatus for inspecting error in lesion contour
05/28/15 - 20150146958 - An apparatus for detecting an error in a contour of a lesion includes an extracting unit configured to extract a contour of a lesion in each of a plurality of two-dimensional image frames that form a three-dimensional image, and an error determining unit configured to determine a presence or an...

Cylinder source software-positioning method for pet calibration and image quality assurance
05/21/15 - 20150139513 - A method and system for determining a position of a source including obtaining prompt data and related delayed data from a Positron Emission Tomography (PET) scanner, generating a sinogram from the prompt data, generating crystal efficiency correction factors by performing a normalization calibration based on the obtained delayed data, performing...

Method of, and apparatus for, visualizing medical image data
05/21/15 - 20150139514 - An apparatus for visualizing medical image data comprises a data processing unit for obtaining first image data representing a first medical image, second image data representing a second medical image, and subtraction image data representing a subtraction image, wherein the subtraction image data is generated by subtracting one of the...

Movement correction for medical imaging
05/21/15 - 20150139515 - A method of improving the resolution of images from medical imaging devices by removing blurring due to movement of a patient during a scan. The method uses tracking algorithms to extract movement data from a video image of the patient and uses the movement data to correct the scanner date...

Denoising method and apparatus for multi-contrast mri
05/21/15 - 20150139516 - A denoising method and apparatus for multi-contrast MRI's are disclosed. An aspect of the invention provides a denoising method for an MRI that includes: acquiring multiple MRI's having different contrast levels for the same site; determining pixels corresponding to the same tissue by using the MRI's; and calculating a new...

Methods and systems for calibration
05/21/15 - 20150139517 - The methods and systems for calibration are provided. For example, radiographic image density such as Hounsfield unit can be calibrated to facilitate tissue characterization of tumors or fluids when imaged at differing energy levels. The disclosed methods and systems can perform coronary calcium scanning at a radiation dose comparable to...

Image processing apparatus
05/21/15 - 20150139518 - An image processing apparatus according to an embodiment includes an input unit, an identifying unit, and a display control unit. The input unit receives specification of a region of interest (ROI) included in a mammography image. The identifying unit identifies a medical image including a position substantially the same as...

Dose estimation service system configured to support multiple computerized medical imaging scan providers
05/21/15 - 20150139519 - Techniques are disclosed for estimating patient radiation exposure during computerized tomography (CT) scans. More specifically, embodiments of the invention provide efficient approaches for generating a suitable patient model used to make such an estimate, to approaches for estimating patient dose by interpolating the results of multiple simulations, and to approaches...

Scan region determining apparatus
05/21/15 - 20150139520 - A method includes displaying an iconic image of the human body and a list of predetermined anatomical regions. The method further includes displaying, in response to a user selected anatomical region, a scan box over a sub-portion of the iconic image. The method further includes receiving an input indicative of...

Ultrasonic diagnostic apparatus, image processing apparatus, and image processing method
05/21/15 - 20150139521 - An ultrasonic diagnostic apparatus according to an embodiment includes a rendering controller, a detector, and a voxel data generator. The rendering controller divides three-dimensional data constituted by voxel data into a plurality of slice regions, rearranges the slice regions based on a sight line direction in which the voxel data...

Method of, and apparatus for, registration of medical images
05/14/15 - 20150131880 - An apparatus for registering medical image data representing a tubular structure comprises a data processing unit for obtaining first medical image data representing the tubular structure and second medical image data representing the tubular structure, a region identification unit for identifying the tubular structure in the first medical image data,...

2d visualization for rib analysis
05/14/15 - 20150131881 - An embodiment of the invention relates to a method of visualization, wherein a 2D transformed image is generated based on 3D image data. A corresponding computation unit, a system including a computation unit and a displaying unit, a medical imaging device, and a computer program are also disclosed. The method...

Medical image data processing apparatus and method
05/14/15 - 20150131882 - An image data processing apparatus comprises a data receiving unit for receiving image data to be segmented, and an atlas selection unit for accessing a plurality of atlas data sets and selecting a subset of the atlas data sets for use in segmenting the image data, wherein the atlas selection...

Joint estimation of tissue types and linear attenuation coefficients for computed tomography
05/14/15 - 20150131883 - The present invention is directed to a new joint estimation framework employing MAP estimation based on pixel-based latent variables for tissue types. The method combines the geometrical information described by latent MRF, statistical relation between tissue types and P-C coefficients, and Poisson noise models of PCD data, and makes possible...

Magnetic resonance imaging apparatus and magnetic resonance imaging method
05/14/15 - 20150131884 - According to one embodiment, an MRI apparatus includes a data acquiring part and a data processing part. The data acquiring part acquires first and second MR signals by applying at least one IR pulse under an application condition according to a relaxation time of a fluid. The first MR signals...

Dielectric encoding of medical images
05/07/15 - 20150125054 - Microwave imaging apparatus and method for completely imaging the human body (or portions thereof) in sufficient detail to render a timely and accurate medical diagnosis by trained medical professionals. The data conversion processes presented will not require physicians and radiologists to learn to use image data in a format they...

Systems and methods for iterative multi-material correction of image data
05/07/15 - 20150125055 - Systems and methods for iterative multi-material correction are provided. A system includes an imager that acquires projection data of an object. A reconstructor reconstructs the acquired projection data into a reconstructed image, utilizes the reconstructed image to perform a multi-material correction on the acquired projection data to generate a multi-material...

Method of classification of organs from a tomographic image
05/07/15 - 20150125056 - The present invention relates to a method for classification of an organ in a tomographic image. The method comprises the steps of receiving (102) a 3-dimensional anatomical tomographic target image comprising a water image data set and a fat image data set, each with a plurality of volume elements, providing...

Methods, systems and computer readable storage media storing instructions for imaging and determining information associated with regions of the brain
05/07/15 - 20150125057 - Methods, systems and computer-readable storage mediums relate to imaging techniques of a region, for example, the brain, with magnetization transfer contrast (MTC°) effects with less specific absorption rate (SAR). The methods, systems and computer-readable storage mediums may include acquiring MR image data from at least one magnetic resonance (MR) scan...

Identification of vascular territories
05/07/15 - 20150125058 - A computer-implemented method of identifying vascular territories in an imaging volume representing an anatomical region, including: obtaining, for each volume element of a plurality of volume elements into which the imaging volume is divided, arrival time data representing an estimated arrival time of a contrast agent at the volume element;...

Fast iterative algorithm for superresolving computed tomography with missing data
05/07/15 - 20150125059 - A system, method and program product for reconstructing an image. A method includes: inputting a projection array p(r, θ) produced from a CT system imaging an object defined with an image function ƒ( x); generating an initial reconstructed image ƒR( x); utilizing an iterative loop to perform: projecting the reconstructed...

Method for tibia resection alignment approximation in knee replacement procedures
05/07/15 - 20150125060 - Aspects of the present disclosure involve systems, methods, computer program products, and the like, for utilizing a series of images of a patient's anatomy to determine a cut plane for use during a knee procedure. To determine a cut plane for use during a knee replacement procedure, the 2D images...

Computational metric that forms a component of computer-aided detection systems for magnetic resonance imaging
04/30/15 - 20150117731 - This document presents a computational metric which can form a component of a computer-aided detection algorithm applied to magnetic resonance imaging examinations....

Method for statistical weights design in iterative reconstruction algorithms
04/30/15 - 20150117732 - A method of computing statistical weights for a computed tomography (CT) iterative reconstruction process is provided. The method includes obtaining detector count data from a CT scan of an object; calculating variance data based on the count data and an electronic noise variance; transforming the calculated variance data to obtain...

System and method reconstructing a nuclear medicine image using deformed attenuation image
04/30/15 - 20150117733 - According to some embodiments, an emission tomography scanner may acquire emission scan data. One or more anatomical images may be generated using an anatomical imaging system, and the anatomical images may be processed to obtain an initial attenuation image. An emission image and a corrected attenuation image may be jointly...

Method of ultrasound nonlinear imaging with high-bit golay code excitation
04/30/15 - 20150117734 - A method of ultrasound nonlinear imaging with high-bit Golay code excitation includes transmitting a first, a second, a third and a fourth Golay code signal wave which have more than four bits and are orthogonal pairs to each other; making the second and the forth Golay code signal wave be...

Parallel image reconstruction using filter banks based on low-frequency part of k-space signals
04/30/15 - 20150117735 - A method for a parallel image reconstruction is disclosed. The method includes (a) acquiring image information by channel via parallel coils in a magnetic resonance imaging (MRI) scanner; (b) extracting low-frequency signals from the image information; (c) reconstructing low-frequency images from the low-frequency signals; (d) generating filter banks by using...

Method for generating image for pet attenuation correction from mr image and computer program
04/30/15 - 20150117736 - When an image for PET attenuation correction is generated from an MR image, the MR image captured by MRI is segmented into regions according to pixel values. In a region in which a radiation attenuation coefficient is considered to be uniform, a radiation attenuation correction value is determined by referring...

Apparatus and method for computer-aided diagnosis
04/30/15 - 20150117737 - An apparatus and method for medical diagnostics includes receiving three-dimensional (3D) volume data of a part of a patient's body, and generating two-dimensional (2D) slices including cross-sections of the 3D volume data cut from a cross-section cutting direction. The apparatus and the method also determine whether a lesion in each...

Ct system with computer unit and method for reconstructing and diagnosing visual ct renderings
04/30/15 - 20150117738 - An embodiment of a CT system includes a computer unit and at least one memory device for storing program code and projection data records, established during a CT scan and usable for reconstructing CT renderings. The computer unit is connected in a networked system with at least one external diagnosis...

Image processing method and medical imaging apparatus employing the method
04/30/15 - 20150117739 - A method for generating an image by using a medical imaging apparatus includes acquiring first slab data which relates to a first imaging slab, acquiring second slab data which relates to a second imaging slab at a position which is different from a position of the first imaging slab, and...

Method and apparatus for metal artifact elimination in a medical image
04/30/15 - 20150117740 - A method and apparatus for metal artifact elimination in a medical image. The method includes: obtaining a medical image to be processed; determining whether or not a metal region is contained in the medial image; and performing artifact elimination processing to the medical image when metal regions are contained in...

Image processing apparatus and ultrasonic diagnosis apparatus
04/30/15 - 20150117741 - The image processing apparatus of the embodiment comprises a multi-resolution decomposition part configured to repeatedly perform decomposition on a first image in which pixels thereof are arrayed in two-dimensional or three dimensional directions into high-frequency components and low-frequency components until the number of pixels becomes a predetermined number in each...

Medical imaging apparatus and method of reconstructing medical image
04/30/15 - 20150117742 - A method of reconstructing a tomographic image in a medical imaging apparatus includes: acquiring a first image of an object and a second image of the object corresponding to an image to be reconstructed; determining, in the first image, a reference region corresponding to a unit region in the second...

Systems and methods for registration of ultrasound and ct images
04/23/15 - 20150110373 - A computerized method for model-less segmentation and registration of ultrasound (US) with computed tomography (CT) images of an organ with a fluid filled chamber, comprising: correlating between the at least one US image and the at least one CT image by processing the at least one US image by iteratively...

Mri method for assigning individual pixels or voxels tissue-specific pet attenuation values
04/23/15 - 20150110374 - A magnetic resonance (MR) system (10) generates an attenuation or density map. The system (10) includes a MR scanner (48) defining an examination volume (16) and at least one processor (54). The at least one processor (54) is programmed to control the MR scanner (48) to apply imaging sequences to...

Segmentation highlighter
04/23/15 - 20150110375 - A method includes segmenting a region of interest in imaging data in a visual presentation of the imaging data and visually highlighting, concurrently with the segmenting, the region of interest while the region of interest is being segmented, wherein the visual highlighting includes coloring the region of interest while the...

Methods, systems and computer program products for dynamic optical histology using optical coherence tomography
04/23/15 - 20150110376 - Methods of acquiring an image are provided. The methods include deriving a first boundary surface from a volumetric image; deriving a second boundary surface, different and spaced apart from the first boundary surface, of the volumetric image, the first and second boundary surfaces defining a slice of the volumetric image...

Method and system for image segmentation
04/23/15 - 20150110377 - Method and system is disclosed for image segmentation. The method includes acquiring a digital image, constructing a graph from the digital image, calculating a plurality of cost functions, constructing an electrical network based upon the constructed graph and the plurality of calculated cost functions, simulating the electrical network using fixed-point...

Image processing apparatus, image processing method, and program
04/23/15 - 20150110378 - An image processing apparatus includes a calculation unit configured to calculate information indicating similarity among a plurality of tomographic images, and a generation unit configured to generate a tomographic image from the plurality of tomographic images based on the calculated information indicating similarity....

Determination of z-effective value for set of voxels using ct density image and sparse multi-energy data
04/16/15 - 20150104089 - Z-effective (e.g., atomic number) values are generated for one or more sets of voxels in a CT density image using sparse (measured) multi-energy projection data. Voxels in the CT density image are assigned a starting z-effective value, causing a CT z-effective image to be generated from the CT density image....

Modification of a hollow organ representation
04/16/15 - 20150104090 - A method and a system are disclosed for interactively creating and/or modifying a hollow organ representation on the basis of medical-technical image data of a hollow organ. An embodiment of the method includes providing the medical-technical image data together with a hollow organ course line representing the course of the...

Image processing apparatus and image processing method
04/16/15 - 20150104091 - A three-dimensional image captured by imaging a subject using a first imaging device is acquired. A two-dimensional image captured by imaging a surface of the subject using a second imaging device is acquired. Information representing the surface position of the subject is acquired from the three-dimensional image. A projection image...

Determining a value of a recording parameter by use of an anatomic landmark
04/16/15 - 20150104092 - A method and an imaging system are disclosed. The method, for determining at least one value of at least one recording parameter for a recording of an X-ray image of a patient positioned on an examination table, uses contactless scanning of at least part of the surface of the patient...

Finding similar coronary angiograms in a database
04/09/15 - 20150098638 - Embodiments relate to finding similar coronary angiograms in a database of coronary angiograms. An aspect includes receiving angiography data for a coronary artery, processing the angiography data to identify one or more semantic features of the coronary artery, and identifying one or more nearest coronary angiograms for each of the...

Image processing system, image processing method and image processing program
04/09/15 - 20150098639 - Provided is an image processing system including a server and a scanning device connected with the server through a network. The scanning device includes a measurement unit that performs multiple times of measurement required to reconstruct one image on a target to obtain a plurality of pieces of measurement data,...

Attenuation map with scattered coincidences in positron emission tomography
04/09/15 - 20150098640 - An imaging system (36) includes a Positron Emission Tomography (PET) scanner (38) and one or more processors (52). The Positron Emission Tomography (PET) scanner (38) which generates event data including true coincident events and scatter events, the event data includes each end point of a line of response (LOR) and...

Image segmentation system and operating method thereof
04/02/15 - 20150093001 - An image segmentation system for performing image segmentation on an image data includes an image preprocessing module, a motion analyzing module, a detection module, a classification module, and a multi-dimensional detection module. The image data has a plurality of image stacks ordered chronologically that respectively have a plurality of images...

Method of compensating ultrasound image
04/02/15 - 20150093002 - A method of compensating ultrasound image comprising demarcating a plurality of a main material regions of an ultrasound image; executing a full compensation process to generate a full compensation image according to a first attenuation curve of the main material region; generating a brightness comparison table including a plurality of...

X-ray ct apparatus and image reconstruction method
04/02/15 - 20150093003 - To generate a reconstructed image suitable to characteristics of a bilaterally symmetric site and possible to an appropriate image diagnosis, a computation device: computes a back projection phase width at a rotational center and distance between the rotational center location which is a reference location and a pixel to be...

Fast scatter estimation in pet reconstruction
04/02/15 - 20150093004 - An image processing apparatus includes a scatter simulation processor which processes measured sinograms generated from imaging data acquired for an imaging subject by an imaging apparatus to produce a scatter sinogram that represents a shape of scatter contribution. A scatter scaling processor utilizes a Monte Carlo simulation to determine a...

Method and apparatus for generating three-dimensional (3d) image of target object
04/02/15 - 20150093005 - A method of generating a three-dimensional (3D) image of a target object includes acquiring ultrasound data of the target object; and generating the 3D image of the target object by using the ultrasound data so that a part of the target object having attribute information different than attribute information of...

Efficient method for performing k-space channel combination for non-cartesian mri acquisitions
04/02/15 - 20150093006 - A system and method for combining k-space data acquired on multiple different receiver channels in a multichannel receiver is provided. One or more convolution kernels are used to combine the k-space data. Each convolution kernel is designed as the combination of one or more channel combination kernels and an alias-suppressing...

System and method for the classification of measurable lesions in images of the chest
04/02/15 - 20150093007 - A system and method for the automated classification of lesions in CT images of the chest between measurable and non-measurable lesions is disclosed. The method comprises the steps of identifying lesions in a CT image, performing repeated measurements of selected metrics on the identified lesions and selecting as measurable lesions...

Registration of multimodal imaging data
04/02/15 - 20150093008 - In a method for improving alignment between representations of a same elongate feature in first and second images, the images are provided to a processor and the processor derives a centerline from image data representing an elongate anatomical feature in the first image, and derives a value of a metric...

Computer-aided detection of regions of interest in tomographic breast imagery
04/02/15 - 20150093009 - Disclosed are methods, and associated systems comprising processors, input devices and output devices, of detecting regions of interest in a tomographic breast image. The methods may comprise: acquiring tomographic breast image data; deriving a plurality of synthetic sub-volumes from the tomographic breast image data; wherein each subvolume is defined by...

Denoising method and system for preserving clinically significant structures in reconstructed images using adaptively weighted anisotropic diffusion filter
04/02/15 - 20150093010 - Embodiments and processes of computer tomography perform tasks associated with denoising a reconstructed image using an anisotropic diffusion filter and adaptively weighting an iterative instance of the diffused image based upon the product of a weight value and a difference between the iterative instance of the diffused image and the...

Systems and methods for image segmentation using a deformable atlas
03/26/15 - 20150086096 - Systems and methods for image segmentation using a deformable atlas are provided. One method includes obtaining one or more target images, obtaining one or more propagated label probabilities for the one or more target images, and segmenting the one or more target images using a cost function of a deformable...

Fast statistical imaging reconstruction via denoised ordered-subset statistically-penalized algebraic reconstruction technique
03/26/15 - 20150086097 - Described here are systems and methods for iteratively reconstructing images from data acquired using a medical imaging system. The image reconstruction is decomposed into separate linear sub-problems that can be more efficiently solved. A statistical image reconstruction process is decomposed into a statistically-weighted algebraic reconstruction update sequence. After this step,...

Systems and methods for producing intravascular images
03/26/15 - 20150086098 - The invention generally relates to systems and methods for producing composite intravascular images of multiple data types. In certain embodiments, systems and methods of the invention involve causing transducers of an intravascular ultrasound device to generate a plurality of different types of data, each type of data being based on...

Visualization of dual energy computed tomography airways data
03/26/15 - 20150086099 - A method for depicting an airway tree of a patient includes: (a) generating an iodine map of the airway tree from dual energy computed tomography (DECT) imaging data acquired from the patient; (b) defining a region of interest of the airway tree from the DECT imaging data; (c) rendering at...

Systems and methods for visualizing elongated structures and detecting branches therein
03/26/15 - 20150086100 - Computer implemented methods are disclosed for acquiring, using a processor, digital data of a portion of an elongate object, and identifying, using a processor, a centerline connecting a plurality of points within the portion of the elongate object. The methods also may include defining a first half-plane along the centerline,...

Method for organ localization
03/26/15 - 20150086101 - In some embodiments, a method for localizing organs in anatomical imaging may include: performing an anterior-posterior view scan and a lateral view scan to create an anterior-posterior view scan image and a lateral view scan image; creating a joint anatomical model based on the anterior-posterior scan image and the lateral...