This page is updated frequently with new Ct Scan-related patent applications.
|An ultrasound imaging system and an ultrasound imaging method|
The present invention provides an ultrasound imaging system and an ultrasound imaging method for improving the imaging quality of the desired imaging plane in the volume of interest of a subject. According to the present invention, it is possible to directly scan the desired imaging plane by exploiting the capability of a 2d matrix ultrasound transducer and/or the flexibility of the position/orientation of the ultrasound probe.
Koninklijke Philips N.v.
|Systems and methods for guided selection of acquisition parameters for medical imaging|
Systems and methods are provided that receive a clinical identifier, an acquisition condition target, and one or more patient characteristics. The systems and methods further generate a scan attribute based on the clinical identifier.
General Electric Company
|Magnetic field actuation of detectors in a computed tomography scanner|
A ct scanner apparatus includes an x-ray source mounted on a gantry of the ct scanner apparatus and configured to emit x-rays, and at least one magnetic field gradient circuit. The at least one magnetic field gradient circuit and the x-ray source rotate together.
Toshiba Medical Systems Corporation
|Mobile communication apparatus and radio communication method|
A first radio communication interface performs communication over a first radio communication network. A second radio communication interface executes a first scan to detect an access point of a second radio communication network and measure a signal level of reception signals received from the detected access point.
|Using 3d computed tomography to analyze shaped charge explosives|
A method may include positioning at least one calibration disk in a computed tomography (ct) scanner and positioning a pellet in the ct scanner. The at least one calibration disk and the pellet may both be made of a same powder exhibiting a known density.
Halliburton Energy Services, Inc.
|Method and tooth body automatic preparation by digital controlled laser light and tooth retainer|
A digital control laser automatic tooth preparation method and device and a tooth positioner are provided. The device includes an intra-oral three-dimensional scanner, a dental laser, an oral working end of a digital control laser tooth preparation control system, an oral and maxillofacial cone beam ct scanner, a computer, a tooth positioner, a negative-pressure suction device and a real-time monitoring device.
Peking University School Of Stomatology
|Continuous shrink reduction system sensitivity adjustment|
Various embodiments herein each include at least one of systems, methods, software, and devices, such as product scanners (e.g., barcode scanners), that continuously adjust fraud-detection sensitivity levels of fraud-detection processes. Adjustments of fraud-detection sensitivity levels are made to maximize actual fraud detection while also minimizing false detections based on changing environmental, transaction, and customer and employee behavioral conditions and factors..
|Method and the correction of magnetic resonance scan data|
In a method and magnetic resonance (mr) apparatus for correcting mr scan data, an mr scanner is operated to acquire first and second correction data sets respectively from first and second sub-volumes of a correction volume, by successive executions of an echo planar imaging sequence. The mr scanner is also operated to acquire third and fourth correction data sets respectively from third and fourth correction sub-volumes, also by successive executions of the echo planar imaging sequence.
Siemens Healthcare Gmbh
|Optimised 4d cone beam computed tomography projection allocation|
A method, and a system when implementing a method, of reducing artefacts in image creation in 4d cone beam computed tomography (4dcbct) images, the method comprising the steps of: (a) performing a 4dcbct scan of a target patient including a series of spaced apart projections through the target patient, with each projection having an associated estimated or measured respiratory state; (b) initially dividing the series of projections into a corresponding series of respiratory bins, with each respiratory bin having projections substantially from a portion of a cyclic respiratory state; and (c) optimising the projections at the bounds of each respiratory bin so as to improve an image quality measure of the images.. .
The University Of Sydney
|Ecg electrode connector|
Disclosed is an ecg electrode lead wire connector which provides improved electrical and mechanical coupling of the ecg electrode press stud to the lead wire and is suitable for use during imaging procedures such as, without limitation, ct scans or mill. The connector assembly includes a housing having.
Systems and methods for eye tracking for motion corrected ophthalmic optical coherenece tomography
Systems and methods for eye tracking for motion corrected ophthalmic optical coherence tomography (oct) are disclosed. According to an aspect, an imaging system includes an eye tracking device configured to determine movement of an eye.
Method of scanning aerofoil blades
A method of ct scanning a plurality of aerofoil blades that includes providing a rotatable support arranged for rotation about an axis of rotation and within an energy beam; mounting a plurality of aerofoil blades to the support in spaced-apart relationship to one another to form at least one array around the axis of rotation; and rotating the support about the axis within the beam. Each blade has an aerofoil section and is mounted to the support.
Method of scanning aerofoil blades
A method of ct scanning a plurality of aerofoil blades. The method includes the steps of: providing a rotatable support arranged for rotation about an axis of rotation and within an energy beam; mounting a plurality of aerofoil blades to the support in spaced-apart relationship to one another so as to form at least one array around the axis of rotation; and rotating the support about the axis within the beam.
Extended duration optical coherence tomography (oct) system
This disclosure relates to the field of optical coherence tomography (oct). This disclosure particularly relates to methods and systems for providing larger field of view oct images.
California Institute Of Technology
Determination of a time-dependent contrast agent injection curve as a function of ct scan parameters
A method for the automatic determination of a contrast agent protocol for a contrast agent-enhanced medical imaging method is described. The method includes an overview recording of a region of interest of an object under examination.
Bayer Pharma Aktiengesellschaft
Portable head ct scanner
A portable ct scanner may include a rotatable frame with separable portions. An x-ray source may be coupled to one portion of the rotatable frame, and an x-ray detector may be coupled to another portion of the rotatable frame.
System and enhancing consumer ability to obtain information via bar codes
Systems and methods of a portable communications device and a product exchanging direct commands or requests via bar codes to address a condition of the product are provided. Some methods can include the portable communications device scanning a bar code displayed on the product and generating and displaying a bar code to be scanned by the product, wherein the bar codes represent direct commands or requests to be executed by the portable communications device or the product to address the condition of the product.
Honeywell International Inc.
Device and determining the diameter of a yarn balloon formed by a running yarn at a workstation of a textile machine
A device for determining the diameter of a yarn balloon (b) formed by a running yarn at a workstation (1) of a textile machine utilizes a mechanical, contact scanning sensor (22), which is designed and arranged so that during the operation of the workstation (1) it is positioned by a yarn forming the yarn balloon (b) in an operating position dependent on the diameter of a yarn balloon (b), and a sensor device (24) which detects the operating position (bs) of the scanning sensor (22).. .
Saurer Germany Gmbh & Co. Kg
Method and system for detection of bone structure
The present invention provides a method and system for detection of bone structure, the method executing operation process and image reconstruction according to an image of a skeleton captured by ct scanner, to present distributed state of a bone structural parameter of the skeleton for diagnosing. The method comprises allocating at least one bone from the image of the skeleton to be analyzed, wherein the image of the bone is composed by pixels, and each pixel includes luminance value positively relating to the bone structural parameter; aligning a major axis of inertia principal axis of the bone to a principal axis of cartesian coordinate; a cortical bone area of the bone intersecting at least one principal plane which is perpendicular to the principal axis, and each principal plane forming an outer contour line and an inner contour line of the cortical bone area; processing a analytic algorithm for the bone structural parameter, in the inner area of the outer contour line in the principal plane, to perform distributed state of the bone structural parameter along the outer contour line; calculating distributed state of the bone structural parameter along the outer contour line in each principal plane, to perform distributed state of the bone structural parameter of the bone; performing distributed state of the bone structural parameter of the bone by assembling distributed state of the bone structural parameter over the outer contour line of each principal plane, and performing distributed state of the bone structural parameter of the skeleton by assembling distributed state of the bone structural parameter of each bone..
National Applied Research Laboratories
Compact scanner assembly with a resonant scanner and two galvanometer scanners for multi region of interest (mroi) imaging and targeting of intact tissue
Provided herein are apparatuses and methods using a compact scanner assembly for multi region of interest (mroi) imaging and targeting of an intact tissue sample. The compact scanner assembly for mroi imaging, comprises a set of three electromagnetically actuated scanning mirrors, the first comprising a resonant scanner (r) driven at its resonant frequency, the second comprising a galvanometer scanner (g1) having a mirror (m1), the third comprising a galvanometer scanner (g2) having a mirror (m2), wherein the galvanometer scanners (g1) and (g2) are driven by a lower bandwidth control signal specifying an angle for mirror (m1) and (m2), wherein the scanners are arranged sequentially as (r) (g1) (g2), wherein the set of three scanning mirrors are within a single scanner assembly (rgg), wherein the compact scanner assembly for mroi combines raster scanning with random-access scanning to target multiple rois for targeting and imaging..
Vidrio Technologies, Llc
Method and apparatus of resampling and averaging to obtain tilted thick-slice computed tomography images
An apparatus and method for obtaining a thick-slice image from tilted thin-slice computed-tomography (ct) projection data. Tilted ct projection data is obtained for a series of projection planes, wherein the projection planes are parallel for all scans, and the translation direction between ct scans is not orthogonal to the projection planes (i.e., the projection planes are tilted relative to the translation direction between ct scans).
Toshiba Medical Systems Corporation
Using detectability index to determine x-ray tube current
A computed tomography (ct) image apparatus includes an x-ray source to emit x-rays; and processing circuitry configured to receive a desired detectability index set by a user, the desired detectability index determining for a desired image quality of a ct scan of an object; determine an x-ray tube current that will result in the desired detectability index set by the user; and cause the x-ray source to perform a scan of the object using the determined tube current.. .
Toshiba Medical Systems Corporation
Item substitution fraud detection
Various embodiments herein each include at least one of systems, methods, software, and devices, such as product scanners e.g., barcode scanners) enabled to detect item substitution fraud during a checkout process at facilities, such as retail outlets. One method embodiment that may be performed in part on a product scanner, includes detecting, on a point-of-sale (pos) terminal, an event occurrence associated with at least one validation process.
Product scanner and list management device
Systems, methods, apparatus, and articles of manufacture for product scanning and list management are provided.. .
Method of surgical planning
A method of pre-operatively forming a surgical splint configured to receive a patient's dentition can include combining a 3-d facial computer model and a 3-d dental computer model. The method includes the step of obtaining a 3-d facial computer model of at least the patient's maxilla, mandible, and dentition from a ct scanner and the step of obtaining a 3-d dental computer model of the patient's dentition with an optical scanner.
Depuy Synthes Products, Inc.
Methods of measuring total retinal blood flow using en face doppler oct
Methods of performing en face doppler total retinal blood flow measurement are disclosed. The methods involve obtaining a set of structural oct scans; calculating a noise-reduced set of doppler phase shift images by dividing the full spectrum oct fringe data into a set of narrower filtered frequency bands for phase shift calculation; removing bulk motion along a depth direction; detecting retinal vessels in the set of images; applying a phase unwrapping algorithm to the images; classifying the vessels as veins and arteries; and calculating total retinal blood flow based on that classification..
Oregon Health & Science University
Method of determining distortion and/or distortion correction for projection image obtained during computer tomography routine
The subject of the invention comprises method of determination of distortion value and/or distortion correction value for a projection image obtained during computer tomography routine, with application, in particular, in control of the scanning process. The method is characterised in that during the first stage, during object scanning, the value of image distortion and/or its possible change present in individual projection images is determined, by determining the central point, namely the detector spot which receives the most intense irradiation from the x-ray source and/or by determination of calibration image and projection image parameter deviation and/or by comparison of projection images, including comparison of projection images with calibration images.
Uniwersytet Slaski W Katowicach
Dual-energy cone-beam computed tomography with a multiple source, single-detector configuration
The present invention is directed to a system and method for dual-energy (de) or multiple-energy (spectral) cone-beam computed tomography (cbct) using a configuration of multiple x-ray sources and a single detector. The x-ray sources are operated to produce x-ray spectra of different energies (peak kilovoltage (kvp) and/or filtration).
Carestream Health, Inc.
Saccharides and saccharide compositions and mixtures
Described herein are products comprising a xylose (e.g., d-xylose or l-xylose and another sweetener such as glucose). Exemplary products include the following: ice cream, ice milk, sorbet, sherbet, gelatin candies, baby food, animal food, e.g., dog, cat, canine, or equine food, seasonings, sauces, cosmetics, dietary supplements, lip stick, lip gloss, face and body preparations, pharmaceuticals, such as flu and cold preparations, nutraceuticals, surgical preparations, procedure preparations, imaging preparations, e.g., ct scan imaging preparations, pain relievers, nasal spray, cheese, vegetables, mayonnaise, mustard, salad dressings, nuts and nut mixes, cookies, pastries, fruit flavored snacks, pancakes, waffles, hot cocoa mix, caramel, shampoo, dental floss, donuts, egg noodles, lollypops, frozen pops, soda pop, chips, potato chips, tortilla chips, corn chips, sports drinks, rice cakes, oatmeals, teas, cereals, rice mixtures, flavored water, alcohol, alcohol mixers, soaps, energy drinks, coffee, coffee flavored drinks, coffee products, cake mixes, chili, chip dip, chip sauces, fibers, such as cellulosic and lignocellulosic fibers and fiber supplements, meats, e.g., deli meats, drink mixes, pasta, meals ready to eat, coconut water, candies, e.g., hard and soft candies, chocolate, candy bars, sports bars and energy bars.
Ct simulation optimization for radiation therapy contouring tasks
A method for optimizing a ct simulation protocol for different size patients for contouring and segmentation of organs and tumors. The method scanning different size phantoms, cadavers, or patients with a ct scanning x-ray tube to create a set of images and to create data sets for each different size phantoms, cadavers, or patients and then calculating an image quality index (iqi) as a benchmark for contouring accuracy.
Washington University In St.louis
Method of determination of physical parameters of an object imaged using computer tomograph and equipment for implementation of said method
The core of the invention lies in a method of determination of physical parameters of the object (3) imaged using computer tomograph, in particular determination of absolute parameters of physical density and/or x-ray absorption coefficient, wherein the reference (2) of the determined physical parameters is installed between the x-ray source (4) and the detector (1) or, advantageously, directly on the detector (1), outside the rotating tomograph platform where the scanned object (3) is placed, followed by object scanning, during which the images of tomographic projections record simultaneously the two-dimensional image of the studied object and the two-dimensional image of the reference, where for at least one projection for at least one reference area the value of image greyscale intensity is performed in relative units by readout of pixel value from the projection image, which reflects the x-ray radiation intensity in greyscale after passing through the scanner chamber and the reference, and the obtained results are used as a basis for calculations of coefficients of calibration function, preferably using linear regression, then the calibration function is substituted with a variable, namely the value determined from the pixel value from the projection image, which reflects the intensity of x-rays in greyscale after passing through the scanner chamber and the scanned object and the value of calibration function is calculated, reflecting the value of the physical parameter and it is stored, preferably in the same pixel in the projection, then on the basis of thus determined projection a computer image reconstruction takes place, the result of which represents in the absolute scale values of the determined physical parameter. The core of the invention is also contained in the equipment for using this method..
Uniwersytet Slaski W Katowicach
Patient position control for computed tomography during minimally invasive intervention
Computed tomography is used during a minimally invasive intervention. A processor detects the inserted device (e.g., catheter) from a ct scan of the patient.
Mobile emergency vehicle with computerized tomography scanner
An emergency vehicle has a patient compartment and a motor, a generator cooperative with the patient compartment, and a computerized tomography (ct) scanner positioned in the patient compartment and connected to the generator so as to supply power to the ct scanner. The ct scanner is releasably affixed to the front wall of the patient compartment.
Method and system for adjusting a laser based treatment system to an eye
A method for adjusting a scanning laser-treatment device to an eye, including: using a laser-treatment device for emitting treatment laser radiation, a handpiece into which the radiation is coupled and having multiple markings and an outlet end for emitting the radiation into the eye, and a laser scanner arranged between a radiation source and the outlet end; using an oct module with a scanner to image eye structures, the handpiece and the module being movable relative to each other in a first state, and the handpiece coupling to the module to image the eye through the outlet end; imaging the markings and ascertaining a first relative position between the markings and the oct scanner; imaging an eye structure using the module through the handpiece and outlet end, and ascertaining a second relative position; and generating signals to actuate the laser scanner based on the first and the second relative positions.. .
Carl Zeiss Meditec Ag
Multi-source ct system and imaging method
A ct scanner has multiple x-ray sources on a first rotatable gantry disposed to illuminate an x-ray detector array. An image processor receives data from the detector array, machine readable instructions in the memory include instructions for energizing k>=2 x-ray sources simultaneously while rotating the gantry through multiple positions and recording measurements at each gantry position.
Computed tomography (ct) apparatus and reconstructing ct image
A computed tomography (ct) apparatus includes a data acquirer configured to acquire a first image corresponding to a first time point, a second image corresponding to a second time point, and a third image corresponding to a third time point based on a result of a ct scan on an object; an image reconstructor configured to acquire motion information of the object based on an amount of movement of the object between the first and second images and an amount of movement of the object between the first and third images, and obtain a target image by correcting at least one of the first, second and third images based on the motion information; and a display configured to display the target image.. .
Samsung Electronics Co., Ltd.
Registration of medical images
The invention relates to a method and an image processing device (50) for the registration of two images (i1, i2) that may for example be provided by a ct scanner (10) and/or an mri scanner (20). According to one embodiment of the invention, the images are first globally registered (gr) with a given registration algorithm using a first parameter vector (p).
Koninklijke Philips N.v.
Methods and systems of testing formation samples using a rock hydrostatic compression chamber
A micro-ct sample holder for placing a sample under hydrostatic pressure during scanning, a micro-ct scanning system using the sample holder, and method of rock sample inspection under hydrostatic pressure. The sample holder includes a pressure vessel having a thinned-walled region and an interior chamber fixed reference stops inside the interior chamber.
Dynamic computed tomography imaging of elasticity
A system and method includes applying, by a vibration source, periodic excitation waves to the volume of tissue, the periodic excitation wave having a plurality of phases, acquiring by the ct scanner a first plurality of ct projections at a first phase, the first plurality of ct projections comprising a first ct projection set, acquiring by the ct scanner a second plurality of ct projections at a second phase, wherein the second phase is different than the first phase a second set of ct projections, the second plurality of ct projections comprising a second ct projection set, and determining, based on the first set of ct projections and the second set of ct projections, at least one of a tissue deformation field and a tissue mechanical property of the volume of tissue.. .
Apparatus and method to control movement of photon-counting detectors in a computed-tomography (ct) scanner
A computed-tomography (ct) apparatus that includes a ct scanner including an x-ray source, a plurality of photon-counting detectors (pcds) arranged in a fixed detector ring to capture incident x-ray photons emitted from the x-ray source, and control circuitry configured to move at least one pcd of the plurality of pcds, from a first position to a second position, in response to receiving an instruction to perform a scanogram scan of an object.. .
Toshiba Medical Systems Corporation
Multiple-layered energy-integrating detector in a hybrid computed tomography scanner
A ct scanner apparatus includes an x-ray source mounted on a gantry of the ct scanner apparatus. The ct scanner apparatus also includes a first x-ray detector mounted on the gantry opposite to the x-ray source, and configured to detect x-rays emitted from the x-ray source and transmitted through an object.
Toshiba Medical Systems Corporation
Dynamic beam aperture control to reduce radiation dose using collimator
A computed tomography (ct) apparatus to perform a ct scan with a reduced radiation, including: an x-ray source to direct a cone beam of x-rays toward a detector assembly with an object of interest situated between the source and the detector assembly; a multi-leaf collimator fixed with respect to the x-ray source and configured to dynamically limit the cone beam of x-rays directed toward the object of interest, the multi-leaf collimator comprising a plurality of leaflets to block impinging cone beam of x-rays; and the detector assembly to detect the directed x-ray beam on a side opposite to the x-ray source after the x-ray beam with the reduced solid angle passes through the object of interest.. .
Telesecurity Sciences, Inc.
Laparoscopic surgery solution and using the same
The present invention provides a laparoscopic surgery method comprising inspection of peritoneal surfaces under an isotonic solution comprising a contrast enhancing agent using near contact scanning by a laparoscope. Accordingly, the method according to the current invention comprises introducing the solution and the contrast enhancing agent into the retroperitoneal space through a catheter or a channel of a laparoscope using an irrigation pump.
Apparatus and computing detector response of a photon-counting detector
A computed tomography (ct) apparatus and a method for determining response of a photon-counting detector of a ct scanner. Based on a count rate of an incident spectrum and a dead time parameter of the photon-counting detector, a highest pileup order that has a contribution towards an output spectrum of the photon-counting detector greater than a threshold corresponding to the pileup order is determined.
Toshiba Medical Systems Corporation
A measurement method
A method is described for using coordinate positioning apparatus, such as a machine tool, to measure an object. The method includes the step of operating the coordinate positioning apparatus in a touch trigger mode to measure the position of one or more touch trigger measurement points on the surface of the object.
Laser scan unit housing for an image forming device
A scan unit for an imaging device having a movable minor and one or more light sources. A light beam generated by each light source is directed towards the movable minor, movement of the minor causing each light beam that is reflected by the minor to follow a distinct scan pattern.
Systems and methods for x-ray ct scanner with reconfigurable field of view
A gantry assembly for use with an imaging system is provided. The gantry assembly includes an x-ray source and a modular detector assembly that includes a plurality of selectively removable detector modules.
Optimizing ct scanning parameter
A method for optimizing ct scanning parameter is disclosed. A target group may be generated from a plurality of reference information samples.
Real-time, enhanced imaging of remote areas, too minute for ct imaging, is made possible through a probe having a radiopaque tip as well as radiopaque volume markers. When deployed, the markers outline the space containing the tip such that both the tip and the volume containing the tip are viewable on a fluoroscope.
Selecting scanning voltages for dual energy ct scanning
A method and apparatus for selecting high and low energy scanning voltages for a dual energy ct scanner are provided. The method may comprise: setting a criterion of selection for selecting high and low energy scanning voltages; generating combinations of high and low energy scanning voltages according to all scanning voltages supported by a dual energy ct scanner, wherein each of the combinations may comprise a high energy scanning voltage and a low energy scanning voltage; and selecting a combination of high and low energy scanning voltages from the generated combinations of high and low energy scanning voltages based on the criterion of selection..
Inductive rotary joint with secondary safety circuit
An inductive rotating power transfer circuit, preferably for transferring electrical power from the stationary part to the rotating part of a ct scanner comprises an inductive power transformer having a stationary primary side and a rotating secondary side. The secondary side is connected via a rectifier to a filtering capacitor, delivering electrical power to a load.