|| List of recent Tomography-related patents
|Method for producing a three-dimensional characteristic model of a porous material sample for analysis of permeability characteristics|
The present invention relates to a method for producing a three-dimensional characteristic model of a rock sample for analysis of the spatial and physical characteristics of materials subsequent to the processing of images obtained by means of computer tomography. The method includes producing a three-dimensional tomographic image of a sample of material, identifying areas where the structure of the material is homogeneous, assigning a particular material density value to each such area, assigning a particular porosity value to each pixel, assigning a particular absolute permeability value to each pixel, forming a three-dimensional characteristic model on the basis of the porosity and permeability values of each pixel, and calculating the absolute permeability of the entire sample or of a portion thereof in any direction by means of computational fluid dynamics.
Obschestvo S Ogranichennoy Otvetstvennostiu "introvision Reserch And Development"
|Device and calibrating tracking systems in imaging systems|
A device and a method for calibrating the coordinate system of imaging systems having a tracking system prior or during image data acquisition, e.g. By way of magnetic resonance tomography..
|Magnetic resonance tomography assisting a person when positioning a medical instrument for a percutaneous intervention|
A medical instrument for carrying out a percutaneous intervention in a patient is provided with a marker that is visible in an mr image. A real-time magnetic resonance image of the patient is created, so that the actual position of the marker can be identified in the real-time image.
|System and the automated testing and/or measuring of a plurality of substantially identical components by x-radiation|
A system for the automated serial testing and/or measuring of a plurality of substantially identical components by x-radiation, the system comprising a testing device with a support, a rotor mounted so as to be continuously rotatable on the support, and an x-ray device disposed on the rotor, a protective enclosure surrounding the testing device, a handling device for handling a component during x-ray testing, and a control/evaluation unit configured for automatically controlling the system as well as evaluating the x-ray signals by computer tomography. The handling device is configured for periodically reciprocating between a loading region and a testing region and comprises an end face element on which the component can be disposed on the side of the end face..
Ge Sensing & Inspection Technologies Gmbh
|X ray computed tomography apparatus and photon counting method|
According to embodiment, an x-ray computed tomography apparatus includes an x-ray tube, an x-ray detector including a scintillator generating scintillation light upon incidence of x-ray photons and a photodetection element, a peak value detector detecting peak values corresponding to x-ray photons based on an output signal from the element, processing circuitry determining an attenuation characteristic of the light by each x-ray photon and an output decreased characteristic of the element, based on the values and time when each peak value was detected, correcting the detected values according to the characteristics, a counter counting the x-ray photons corresponding to the respective corrected peak values, wherein the processing circuitry reconstructs a medical image based on an output from the counter.. .
Toshiba Medical Systems Corporation
|X-ray computed tomography apparatus and medical image display apparatus|
According to an embodiment, x-ray ct apparatus includes x-ray generator includes x-ray tube, high-voltage generator, detector, controller and circuitry. High-voltage generator generates tube voltage to be applied to x-ray tube.
Toshiba Medical Systems Corporation
|Method of observing a three-dimensional image of examinee's eye|
A method of observing a three-dimensional image of an examinee's eye to be examined, includes: obtaining a first three-dimensional image which is a three-dimensional image of an anterior segment of the examinee's eye by optical coherence tomography for obtaining a tomographic image by converging a measurement light on the anterior segment of the examinee's eye; obtaining a second three-dimensional image which is a three-dimensional image of a fundus of the examinee's eye by optical coherence tomography for obtaining a tomographic image by converging the measurement light on the fundus of the examinee's eye by a timing different from a timing of obtaining the first three-dimensional image; constructing a three-dimensional eyeball image of the examinee's eye through image processing based on the obtained first and second three-dimensional images; and displaying the constructed three-dimensional eyeball image on a monitor.. .
Nidek Co., Ltd.
|Systems and methods for efficiently obtaining measurements of the human eye using tracking|
Systems and methods for efficiently obtaining optical coherence tomography (oct) measurement data with reduced effects of motion are presented. One embodiment involves determining the amount of motion present during the collection of an oct data set based on images of the eye collected at the same time as the oct data, and recollecting select portions of the oct data set when the amount of eye motion is determined to exceed a predetermined threshold.
Carl Zeiss Meditec, Inc.
|Computed tomography system for cargo and transported containers|
An imaging system includes an x-ray or gamma ray source that emits an x-ray or gamma ray beam, a tunnel having a plurality of detectors, and a translatable platform. The detectors each receive a portion of the beam.
|Methods and individually optimizing uniform contrast enhancements in computed tomography imaging|
A method is provided for optimizing a contrast injection function for ct imaging. The method includes injecting, with an injector pump, a test bolus of a contrast agent into a subject.
The University Of Maryland, Baltimore
Aqueous cell differentiation in anterior uveitis using optical coherence tomography
Methods and systems for determining a percentage composition of aqueous cells in an anterior chamber of an eye of a subject based on cell reflectance distributions calculated from oct image data are disclosed. In one example approach, determining a percentage composition of detected aqueous cells may comprise calculating a percentage of the detected aqueous cells which are polymorphonuclear and calculating a percentage of detected aqueous cells which are mononuclear..
Oregon Health & Science University
Seismic data processing
Described herein are implementations of various technologies for a method for processing seismic data corresponding to a region of interest. The method may receive the seismic data.
Rectal coil for magnetic-resonance tomography
The invention concerns a rectal coil for magnetic resonance tomography, with a coil for transmitting and/or receiving magnetic resonance tomography electromagnetic signals, an inflatable balloon for securing or positioning the coil in the intestine and a shaft by means of which the coil and balloon are connected and which is used to introduce the rectal coil into the rectum, the coil being attached outside the balloon.. .
Method for elementally detecting variations in density
A method and system are provided for elementally detecting variations in density. The method includes providing a computed tomography device, comprising a radiation source, a detector, and at least one grating between the radiation source and the detector, positioning the component between the radiation source and the detector, directing radiation from the radiation source to the detector to acquire information from the component, generating at least one phase contrast image and at least one dark field contrast image of the component corresponding to variations in density with the information from the component, correlating the variations in density to a foreign mass, and displaying foreign mass distribution within the component.
General Electric Company
3d laser ablation tomography and spectrographic analysis
A laser ablation tomography system includes a specimen stage for supporting a specimen. A specimen axis is defined such that a specimen disposed generally on the axis may be imaged.
The Penn State Research Foundation
Preventing network tomography in software defined datacenter networks
Technologies are provided for preventing abuse of software-defined datacenter networks. In some examples, an sdn abuse prevention module within a control layer of an sdn may use graph analysis rules and monitor network paths over time to detect and prevent abusive network conformation change command series.
Empire Techology Development Llc
Laboratory x-ray micro-tomography system with crystallographic grain orientation mapping capabilities
A method and system for three dimensional crystallographic grain orientation mapping illuminates a polycrystalline sample with a broadband x-ray beam derived from a laboratory x-ray source, detects, on one or more x-ray detectors, diffracted beams from the sample, and processes data from said diffracted beams with the sample in different rotation positions to generate three dimensional reconstructions of grain orientation, position, and/or 3-d volume. A specific, cone beam, geometry leverages the fact that for a point x-ray source with a divergent beam on reflection of an extended crystal grain diffracts x-rays such that they are focused in the diffraction plane direction..
Carl Zeiss X-ray Microscopy, Inc.
Apparatus and methods for computed tomography imaging
Apparatus and methods for computed tomography (ct) imaging are provided. One method includes providing a patient table to move along an examination axis of a rotating gantry of a ct imaging system having at least one imaging detector.
General Electric Company
System and detecting a problem tooth
A system and method for visualizing a dental image that includes a plurality of high resolution dental data, a plurality of tooth objects, at least one threshold and a processing module is described. The plurality of high resolution dental data that is generated using computed tomography.
Visionary Technologies, Inc.
Method for operating a computer tomography system, and computer tomography system
In a computer tomography system having an x-ray detector with a detector surface at which sensor pixels, for detection of x-ray radiation, are distributed non-uniformly, and a method for operating such a system, either a pitch factor is selected, and a value range for an extent of a reconstruction field for image data is determined dependent on the distribution of the sensor pixels and dependent on the selected pitch factor, or a value for the extent of the reconstruction field is selected, and a value range for the pitch factor is determined dependent on the distribution of the sensor pixels and dependent on the selected value for the extent of the reconstruction field.. .
Massively parallel diffuse optical tomography
Diffuse optical tomography systems and methods are described herein. In a general embodiment, the diffuse optical tomography system comprises a plurality of sensor heads, the plurality of sensor heads comprising respective optical emitter systems and respective sensor systems.
Measurement of biomechanical properties in an oct image
Systems and method are provided for evaluating a biomechanical property of tissue. A shear wave generator is configured to induce a shear wave in the tissue.
Case Western Reserve University
X-ray computed tomography apparatus and photon counting ct apparatus
A gantry includes two x-ray source rings and a detector ring. Each x-ray source ring includes a plurality of x-ray sources arrayed circumferentially.
Toshiba Medical Systems Corporation
Method to fabricate portable electron source based on nitrogen incorporated ultrananocrystalline diamond (n-uncd)
A source cold cathode field emission array (fea) source based on ultra-nanocrystalline diamond (uncd) field emitters. This system was constructed as an alternative for detection of obscured objects and material.
Uchicago Argonne, Llc
System, method and computer-accessible medium for joint magnetic resonance-positron emission tomography reconstruction using multi-sensor compressed sensing
An exemplary system, method and computer-accessible medium for generating a magnetic resonance (mr) image(s) and a positron emission tomography (pet) image(s) of a tissue(s) can be provided, which can include, for example, receiving information related to a combination of mr data and pet data as a single data set, separating the information into at least two dimensions, at least one first of the dimensions corresponding to the mr data and at least one second of the dimensions corresponding to the pet data, and generating the mr image(s) and the pet image(s) based on the separated information.. .
New York University
Flow data acquisition and telemetry processing systems
Processing electronics provide flow data acquisition and telemetry for multiphase flow tomographic arrays. The processing electronics convert sensed flow condition data obtained by ultrasonic transceiver tomography arrays into a serial digital data to minimize both the number of external feedthroughs and also the bandwidth required for transmission.
Saudi Arabian Oil Company
Systems, methods and apparatuses for real-time anastomosis guidance and surgical evaluation using optical coherence tomography
A surgical evaluation and guidance system for use in extravascular evaluation and guidance of fluid vessel surgeries, includes an optical coherence tomography engine; a vessel probe optically coupled to the optical coherence tomography engine; and a signal processing and display system adapted to communicate with the optical coherence tomography engine to receive imaging signals therefrom. An optical coherence tomography vessel probe for use in extravascular evaluation and guidance of fluid vessel surgeries, includes a probe body having a proximal end and a distal end; an optical relay system disposed within the probe body; and a vessel adapter at least one of attached to or integral with the probe body at the distal end of the probe body, wherein the vessel adapter defines a groove that is configured to accept one of a fluid vessel and a lymphaticovenous vessel..
The Johns Hopkins University
X-ray computed tomography apparatus and photon counting ct apparatus
A gantry includes an x-ray source ring and a detector ring. The x-ray source ring includes a plurality of x-ray sources arrayed circumferentially.
Toshiba Medical Systems Corporation
4d contrast enhanced computed tomography (ct)
A method includes performing a contrast enhanced computed tomography (ct) scan of tissue of interest of a subject, with an imaging system having a radiation source and a detector array, in which a peak contrast enhancement of the tissue of interest, a full range of motion of the tissue of interest, and an entire volume of interest of the tissue of interest are concurrently imaged during a single rotation of the radiation source and the detector array of the imaging system over an entire or a predetermined sub-portion of a breathing cycle.. .
Koninklijke Philips N.v.
Coil arrangement for a magnetic resonance tomography device
A magnetic resonance imaging device for prostate examinations with a patient in said device comprises a coil for generating a strong homogeneous magnetic field in the direction of the longitudinal axis of the patient, at least one transmission coil for generating an electromagnetic alternating field, three gradient coils and suitable reception coils, of which individual coils are arranged below the patient in the lower back region and/or at the rear part and at least one of said coils is arranged above the patient, and also comprises data processing for obtaining images from the signals of the transmission and reception coils, wherein a closed reception coil is provided which sits closely against the patient and surrounds the scrotum and the penis.. .
Surgical microscopes using optical coherence tomography and related systems
Some embodiments of the present inventive concept provide optical coherence tomography (oct) systems for integration with a microscope. The oct system includes a sample arm coupled to the imaging path of a microscope.
Computerized tomography detection of microbial damage of plant tissues
The present disclosure encompasses embodiments of x-ray computed tomography-based methods for the detection of onion quality factors. Such methods are advantageous in detecting internal damage to onion bulbs due to bacterial and fungal rots and mechanical damage while also providing for the overall assessment of onion bulb quality and market value.
University Of Georgia Research Foundation, Inc.
System and resampling optical coherence tomography signals in segments
A system and method for resampling interference datasets of samples in segments, in a swept-source based optical coherence tomography (oct) system. The resampling is preferably performed within a field programmable gate array (fpga) of the oct system, the fpga preferably having fourier-transform based signal processing capabilities such as fast fourier transform (fft) cores.
18f labeled bodipy dye and its derivatives for pet imaging of heart perfusion and others
This invention provides a class of dual mode imaging tracer capable of acting both as a fluorescent imaging tracer and a positron emission tomography imaging tracer. Tracers in accordance with this invention generally have a fluorescent core with a boron-fluoride element embedded therein.
University Of Southern California
Novel fluorine-18 labeled rhodamine derivatives for imaging with positron emission tomography
The present invention is directed toward novel fluorine-18 labeled rhodamine dye derivatives and methods of making the same. The present invention is also directed toward methods of using novel fluorine-18 labeled rhodamine dye derivatives as positron emission tomography imaging agents and myocardial perfusion imaging agents..
Children's Medical Center Corporation
Fiber optic distal sensor controlled micro-manipulation systems and methods
A motion-compensated cutting system includes a hand-held tool body, and an actuator connected to the tool body. A shaft of the actuator is movable relative to the tool body so that a distal end of a cutting implement attached to the shaft is axially movable relative to the tool body.
The Johns Hopkins University
Patient-specific computed tomography guides
A patient-specific tibial pin guide for placement on a tibia during a joint arthroplasty procedure on a patient is disclosed. The tibial pin guide includes a patient-specific inner surface having a first offset portion and a second offset portion.
Patient based detector crystal quality control for time of flight acquisition
Disclosed herein too is a positron emission tomography calibration system comprising a positron emission tomography scanner having a ring detector that comprises at least one bin for receiving radiation; a patient that is placed at approximately the center of the ring detector where the patient is irradiated with at least one dose of a treatment radiation beam; a crystal efficiency calibration system that performs the following: measures activity generated by the at least one defined radiation dose in the at least one bin; takes projection data of the measured activity; calculates crystal efficiency from the projection data; re-estimates the measured activity of each bin based on the calculated crystal efficiency; and calibrates the detector based on the re-estimated measured activity.. .
Siemens Medical Solutions Usa, Inc.
X-ray ct apparatus and tomography method
In order to provide an x-ray ct apparatus with little image quality degradation even though a tube current value of the x-ray tube is suppressed, an x-ray ct apparatus of the present invention includes: a system controller that calculates a tube current value of an x-ray tube based on a successive approximation process condition selected from a plurality of successive approximation process conditions and input a scanning condition and/or a reconstruction condition and that performs scanning based on the calculated tube current value of the x-ray tube; and an image reconstruction device that reconstructs a tomographic image of an object, based on the selected successive approximation process condition and the reconstruction condition, from an amount of transmitted x-rays detected by an x-ray detector after being emitted from an x-ray source to the object based on the calculated tube current value of the x-ray tube and being transmitted through the object.. .
Hitachi Medical Corporation
X-ray computed tomography apparatus, medical image processing apparatus and medical image processing method
According to one embodiment, an x-ray computed tomography apparatus includes an x-ray tube, collimators including through holes respectively collimating an x-ray and diffraction bodies provided in the holes respectively, diffracting the x-ray at an angle to an x-ray energy, x-ray detection elements provided at predetermined distances from the bodies, counting circuitry counting the number of photons originating from the x-ray, storage circuitry storing statistical information, corresponding to energy bins in the x-ray, concerning a count distribution of count values with positions of the elements, classification circuitry classifying the numbers of counted photons for the bins by using the information, reconstruction circuitry reconstructing a medical image to the bins based on the number of photons classified for the bins.. .
Toshiba Medical Systems Corporation
Apparatus for partial ct imaging
An apparatus for computed tomography imaging of a patient has a rotatable mount that is actuable to rotate about a rotation axis and that supports, at opposite ends an x-ray source and an x-ray detector, wherein the x-ray source is disposed to direct a radiation beam through the patient and toward the detector. A patient positioning apparatus positions the patient relative to the rotation axis.
X-ray computed-tomography apparatus and imaging-condition-setting support apparatus
In an x-ray computed-tomography apparatus of an embodiment, a reconstruction processing unit reconstructs image data based on projection data that is generated from output of an x-ray detector. A specifying unit specifies a scan position or a scan range for main scanning.
Toshiba Medical Systems Corporation
Method and system for generating implant image
Disclosed herein are a method and system for generating an implant image. The system includes a computed tomography (ct) data input module, a ct data correction module, and a hybrid image generation module.
Megagen Implant Co., Ltd.
Parametric electric impedance tomography of the chest
B) finding values of the set of parameters that provide a good fit to results of the impedance measurements.. .
Low-coherence interferometry and optical coherence tomography for image-guided surgical treatment of solid tumors
A system for providing intraoperative feedback to a user during the course of surgery. A core imaging unit provides low-coherence optical radiation coupled to a sampling device and generates optical coherence tomography (oct) data based on combining scattered light received from the sampling device together with a reference signal.
The Board Of Trustees Of The University Of Illinois
Photonic device and optical coherence tomography apparatus including the photonic device as light source
λs<(λc−(Δλ/2)) (1).. .
Multidimensional personal behavioral tomography
A method and computer program product for identifying attributes of customers and potential customers, allowing marketing to be directed at such consumers. Information is received regarding each of a number of consumers.
Apparatus for optical coherence tomography of an eye and optical coherence tomography of an eye
An apparatus and a method for optical coherence tomography (oct) of an eye are provided. The apparatus comprises a camera system, an oct image-acquisition unit, and a control unit..
An autofocus apparatus is capable of detecting the position of a sample on a microscope. The sample may consist of a specimen mounted between a microscope slide and coverslip or specimens within a well plate.
Method and processing the signal in spectral domain interferometry and spectral domain optical coherence tomography
Real-time depth measurements in sensing in spectral domain interferometry and for en-face and cross section image production in optical coherence tomography can operate without any need to linearize the data to maximize the output signal and achieve the theoretical depth resolution. Novel interferometry is disclosed, where parameters of a master interferometer dictate the results in a slave interferometer.
High visibility endoprosthesis and method
An endoprosthesis, a method for imaging an endoprosthesis, a method of making an endoprosthesis involve a polymeric substrate that has been modified to have voids embedded within the substrate. The voids are sized to scatter optical radiation from within the substrate so that an optical coherence tomography (oct) image can be obtained in which an interior region of the substrate can be easily differentiated from empty space and other structures that surround the endoprosthesis.
Sensor coordinate calibration in an ultrasound system
There is disclosed an embodiment for performing a calibration of a sensor by using an image registration between a three-dimensional ultrasound image and computerized tomography (ct) image. An ultrasound image forming unit includes an ultrasound probe and forms a three-dimensional ultrasound image of a target object.
Ct imaging cranial anatomies
The invention relates to a medical computed tomography imaging apparatus which is especially designed to enable cranial imaging. The structure of the apparatus includes a gantry (2) comprising imaging means (21, 22) and a positioning support (8) which positioning support (8) is arranged to position the patient's cranium for exposure such that, when exposed, the cranium is scanned by a radiation beam substantially parallel with a plane formed by the facial area of the cranium and substantially only in an area on the facial side of the cranium..
Inter-detector scatter enahnced emission tomography
A method and system for acquiring a series of medical images includes receiving medical imaging data corresponding to photons emitted from a subject having received a dose of a radiotracer. Determining, from the medical imaging data, coincidence events including photon coincidence events involving two photons and photon coincidence events involving more than two photons.
X-ray computed tomography apparatus and x-ray generation apparatus
According to on embodiment, an inverter high voltage generator includes a dc power supply, an inverter, a high voltage converter, a discharge detector, a controller. The dc power supply generates a direct current.
Contactless information transfer in ct imaging modality
Among other things, a communication system and technique for transferring information between a stationary unit and a rotating unit of a computed tomography (ct) system is provided. The communication system comprises a transceiver and a contactless data-link comprising at least one physical channel.
Muon tomography imaging improvement using optimized limited angle data
Disclosed technology can provide a process for generating reconstructed muon image resolution to optimize the use of the limited angular range muon track data collected by a muon tomography system. In one aspect, a process for improving reconstructed muon image resolution for a volume of interest (voi) imaged by a muon tomography system includes: collecting raw muon track data of cosmic ray muon tracks passing through the voi; grouping the raw muon track data into two or more subsets of tracks based on at least one angular distribution of the muon tracks in the raw muon track data; generating a set of images of the voi based on the two or more subsets of tracks; and combining information from the set of reconstructed images and a reconstructed image based on the full set of the raw muon track data to obtain a resulting reconstructed image of the voi..
X-ray computed tomography apparatus and control method
An x-ray computed tomography (ct) apparatus includes a detector, and processing circuitry. The detector is configured to output, at each incidence of an x-ray photon, a signal enabling measurement of an energy value of the x-ray photon.
Method and device for simplifying information obtained from electrical impedance tomography
A method and apparatus to simplify information obtained through electrical impedance tomography, said method comprising the steps of data collection through electrical impedance tomography and the respective processing thereof; the application of at least one algorithm to detect conditions, trends and specific events, so as to allow the identification of at least one region of interest as well as the production of an image including at least such region, which can be pre-defined or defined by the user. The graphical representation of the region of interest can be obtained through the use of a color, texture, figure, contour, etc.
Systems, methods, and devices for image reconstruction using combined pde-constrained and simplified spherical harmonics algorithm
Systems, methods, and devices for image reconstruction using combined pde-constrained and simplified spherical harmonics (spn) algorithm are presented herein. Spn equations can be used as the forward model in diffuse optical tomography (dot) and employed in a pde-constrained reduced space sequential quadratic programming (rsqp) optimization method to reconstruct spatially distributed optical properties, such as absorption, scattering, fat, oxygenated hemoglobin, de-oxygenated hemoglobin, fluorescent concentration, quantum yield, etc.
Method for linearizing attenuation measurements taken by a spectrometry sensor
The invention relates to a method for linearizing attenuation measurements obtained by means of a direct conversion spectrometer. The spectrometer comprises a radiation source and a detector for detecting said radiation after it has passed through an object.
Method and device for optimizing magnetic resonance system operating sequences with respect to physiological limiting values
A method and device for establishing a protocol relating to a measurement sequence for controlling a magnetic resonance tomography system, the measurement sequence is segmented into various groups of partial modules that are similar to one another. A partial module that potentially generates the greatest physiological exposure for a patient is identified.
Automated calibration of laser system and tomography system with fluorescent imaging of scan pattern
A laser system calibration method and system are provided. In some methods, a calibration plate may be used to calibrate a video camera of the laser system.
Treating an ischemic stroke
Systems and methods for treating an ischemic stroke are provided. In one aspect, a non-contrast scan is performed on a patient with a c-arm computed tomography (ct) imaging device in an interventional suite.
Stationary gantry computed tomography systems and methods with distributed x-ray source arrays
Systems and methods for x-ray imaging are disclosed, particularly non-rotating, stationary gantry and mobile x-ray computed tomography systems and methods for imaging a subject, and particularly for imaging the head, spine, and neck of a subject. Compared to rotating-gantry computed tomography scanners, non-rotating stationary gantry x-ray computed tomography scanners are more mobile and transportable.
Passive, noninvasive tomography
A passive, noninvasive tomography apparatus and method is disclosed for in-depth tissue imaging and lesion detection. In one particular approach, the disclosed apparatus and method is adapted for use in breast imaging..
Light source system and optical coherence tomography apparatus using the light source system
A light source system includes a laminate having a lower electrode layer, an active layer and an upper electrode layer in this order, a light-emitting element including at least one of the upper electrode layer and the lower electrode layer divided into a plurality of electrodes and configured to emit light by injecting a current into the active layer via the upper electrode layer and the lower electrode layer, and a control unit configured to control a current injecting amount to the upper electrode layer and the lower electrode layer. The control unit controls a half-value width of the emission spectrum of the light-emitting element by varying a difference between an injection current density to a first electrode and an injection current density to a second electrode among the plurality of electrodes..
Canon Kabushiki Kaisha
Phase contrast x-ray tomography device
The invention relates to a phase contrast x-ray tomography device, comprising an electron gun (44) having a downstream deflector coil (52). The x-ray beam (56) is guided by the deflector coil (54) on a circular path over a target (58), which is marginally tilted towards a plane positioned vertically on the device axis.
Arp Angewandte Radiologische Physik Ug (haftungsbeschrankt)
Tilting collimator, in particular for single-photon emission computed tomography
A tilting collimator (4), in particular usable in the single photon emission computed tomography imaging technique, comprises: a plurality of side-by-side tubular structures (5), apt to form a matrix of tubular structures (5) on a two-dimensional space, each tubular structure (5) comprising at least a through hole; each tubular structure (5) being in contact with the tubular structures (5) adjacent thereto so as to be able to tilt only in presence of an equal tilting in the adjacent tubular structures (5); and retaining means, acting on the outer edges of said matrix, apt to move horizontally to determine the simultaneous tilting of all tubular structures (5) of the matrix, allowing a three-dimensional scanning of a gamma source by tilting progressively the single tubular structures (5) with great precision and in an extremely quick way.. .
Kay Systems Italia S.r.l.
Suppression of vascular structures in images
Image processing techniques may include a methodology for normalizing medical image and/or voxel data captured under different acquisition protocols and a methodology for suppressing selected anatomical structures from medical image and/or voxel data, which may result in improved detection and/or improved rendering of other anatomical structures. The technology presented here may be used, e.g., for improved nodule detection within computed tomography (ct) scans.
Riverain Technologies Llc