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Tomography patents



      
           
This page is updated frequently with new Tomography-related patent applications.



Date/App# patent app List of recent Tomography-related patents
02/04/16
20160035086 
 X-ray dose distribution calculation for a computed tomography examination patent thumbnailnew patent X-ray dose distribution calculation for a computed tomography examination
The invention relates to an apparatus (18) for calculating an x-ray dose distribution within an object for a computed tomography examination. A primary flux determination unit (15) determines firstly a primary flux distribution within the object, wherein then this determined primary flux distribution is used as an initial total flux distribution by a total flux determination unit (16) while applying a six-flux model algorithm.
Koninklijke Philips N.v.


02/04/16
20160034095 
 Optical touch tomography patent thumbnailnew patent Optical touch tomography
An optical touch-sensitive device has the capability to determine touch locations of multiple simultaneous touch events. The touch events disturb optical beams propagating across the touch sensitive surface.
Rapt Ip Limited


02/04/16
20160033668 
 Method of imaging the electrical conductivity distribution of a subsurface patent thumbnailnew patent Method of imaging the electrical conductivity distribution of a subsurface
A method of imaging electrical conductivity distribution of a subsurface containing metallic structures with known locations and dimensions is disclosed. Current is injected into the subsurface to measure electrical potentials using multiple sets of electrodes, thus generating electrical resistivity tomography measurements.
Battelle Memorial Institute


02/04/16
20160033659 
 High performance computing for three dimensional proton computed tomography patent thumbnailnew patent High performance computing for three dimensional proton computed tomography
A high performance computer system for three dimensional proton computed tomography and method of imaging an object are disclosed. The system includes a proton computed tomography (pct) detector assembly with an arrangement of fibers attached to silicon photo multipliers (sipms).
Fermi Research Alliance, Llc


02/04/16
20160033657 
 X-ray computed tomography apparatus and x-ray detector patent thumbnailnew patent X-ray computed tomography apparatus and x-ray detector
An x-ray computed tomography apparatus according to an embodiment includes an x-ray detector that includes a first semiconductor chip including a plurality of elements configured to convert x-rays into an electrical signal, a substrate configured to collect the electrical signal from each element, a second semiconductor chip that is provided between the first semiconductor chip and the substrate and is formed of the same material as that of the first semiconductor chip, a plurality of first electrodes configured to couple each element of the first semiconductor chip to the second semiconductor chip, and a plurality of second electrodes that are configured to couple the second semiconductor chip to the substrate and are larger than the first electrodes. The second semiconductor chip wires the first electrodes and the second electrodes on a one-to-one basis..
Toshiba Medical Systems Corporation


02/04/16
20160030133 
 Registration object, correction  computed radiographic tomography patent thumbnailnew patent Registration object, correction computed radiographic tomography
Disclosed is a registration object for computed radiographic tomography. The object has a body portion defining a void for including at least part of a target object.
Nikon Metrology Nv


02/04/16
20160030000 
 Ultrasound waveform tomography method and system patent thumbnailnew patent Ultrasound waveform tomography method and system
A method and system for generating an enhanced image of a volume of tissue, the method comprising: emitting acoustic waveforms toward the volume of tissue; detecting a set of acoustic signals derived from acoustic waveforms interacting with the volume of tissue; generating, from the set of acoustic signals, an initial model representing a distribution of an acoustomechanical parameter across a region of the volume of tissue; extracting a set of frequency components, from the set of acoustic signals; generating a first simulated wavefield with a first frequency component of the set of frequency components; generating an updated model of the initial model with the first simulated wavefield; iteratively refining the updated model with a set of simulated wavefields associated with the set of frequency components until a threshold condition is satisfied, thereby producing a final model; and generating the enhanced image from the final model of the volume of tissue.. .
Delphinus Medical Technologies, Inc.


02/04/16
20160029985 
 X-ray computed tomography apparatus patent thumbnailnew patent X-ray computed tomography apparatus
To solve the problems described above, an x-ray computed tomography apparatus includes an x-ray tube, a scintillator, a photoelectric convertor, a thermal storage material, a rotating portion, a rotating mechanism, and image generating circuitry. The x-ray tube generates an x-ray.
Toshiba Medical Systems Corporation


02/04/16
20160029902 
 Chronic total occlusion crossing devices with imaging patent thumbnailnew patent Chronic total occlusion crossing devices with imaging
An imaging device includes a hollow flexible shaft having a central longitudinal axis and an imaging window therein. An optical fiber extends within the hollow flexible shaft substantially along the central axis.
Avinger, Inc.


02/04/16
20160029886 
 Optical coherence tomography apparatus and fundus image processing program patent thumbnailnew patent Optical coherence tomography apparatus and fundus image processing program
An optical coherence tomography apparatus includes: a scanning unit configured to scan a test substance with measurement light; an oct optical system configured to detect an a scan signal caused by interference between the measurement light and reference light corresponding to the measurement light; and a processor configured to: acquire three-dimensional oct data in which the a scan signals at respective scanning positions at the test substance are arranged in a two-dimensional manner; acquire a histogram of the a scan signals at the respective scanning positions; and generate an oct front image by processing the acquired three-dimensional oct data based on the acquired histogram.. .
Nidek Co., Ltd.


01/28/16
20160027606 

Arrangement for a quick electron beam x-ray computer tomography


A system for electron beam x-ray computer tomography, which requires no considerable axial extension of the electron emitter and substantially eliminates electron-optical beam guidance elements is provided by disposing an x-ray detector arc and the target around the examination cross-section within an irradiation plane, and radially introducing an electron beam generated in the electron beam generator into the magnetic flux region of one or more longitudinal coils from within or outside the coils and forcing the same onto a circular path by way of the magnetic field. By periodically changing the field strength, the radius of the circular path is increased, as a result of which the electron beam impinges on the target in a tangentially migrating focal spot.
Helmholtz-zentrum Dresden-rossendorf E.v.


01/28/16
20160027340 

Perfusion phantom device


Uses of the device in quality control, validation or calibration of monitoring devices such as magnetic resonance (mr) or computerised tomography (ct) scanners, in teaching or training of machine operatives or for research purposes including for research into scanners, scanning techniques or reagents such as contrast agents used in such processes, form further aspects of the invention.. .

01/28/16
20160027192 

X-ray ct apparatus and image processing apparatus


An x-ray computed tomography (ct) apparatus according to an embodiment includes processing circuitry. The processing circuitry causes a ct image designated as a display object image to be displayed on a display, every time any of a plurality of reconstructed ct images is designated as the display object image.
Toshiba Medical Systems Corporation


01/28/16
20160026894 

Ultrasound computed tomography


Ultrasound computed tomography is a system of devices that reconstructs a series of 2 dimensional ultrasound images into a 3 dimensional computed tomographic model of an object by cataloguing ultrasound image frames according to the ultrasound probe's position in 3 dimensional space at the time of image capture. Capturing the position and orientation of an ultrasound probe at the time of image frame acquisition allows for appropriate placement of each 2 dimensional ultrasound image within a 3 dimensional computed tomographic workspace.

01/28/16
20160025823 

Tiltable head coil


A head coil for an imaging magnetic resonance tomography (mrt) system is provided. The head coil includes a head coil upper part and a head coil lower part.

01/28/16
20160025657 

Methods and systems for non-destructive analysis of objects and production of replica objects


In one aspect, the present disclosure provides a method including rotating a rotatable surface with an object positioned thereon to a plurality of angular positions. The method also includes capturing, via an x-ray microtomography device at each of the plurality of angular positions, a tomograph of the object.
University Of Connecticut Through Its Center For Science & Technology Commercialization


01/28/16
20160025478 

Real time fpga resampling for swept source optical coherence tomography


Real-time swept source oct data is most often sampled using a specially cut hardware k-clock. The present invention involves mathematically resampling signals within an fpga-based data acquisition board based on data sampled from a wide free spectral range reference interferometer.
Axsun Technologies Llc


01/28/16
20160022845 

Synthon composition


The present invention relates to an improved [18f]labelled synthon composition, wherein the non-radioactive impurities in said composition have been found to be more straightforward to remove than with known compositions comprising said [18f]labelled synthon. The resultant purified [18f]label led synthon therefore can be used in the production of a positron emission tomography (pet) tracer having improved properties for in vivo imaging.
Ge Healthcare Limited


01/28/16
20160022844 

Tetrahydroxamate chelators of zirconium89 and niobium90 for use in diagnostic applications


Disclosed is a compound of formula (i) or (ii) in which r1-r4, r1′-r5′, z1+-z4, and z1′-z4′ are as described herein. Also disclosed are a 89zr- or 90nb-containing complex of a compound of formula (i) or (ii) and a method for obtaining a diagnostic image, such as a positron emission tomography (pet) image..
The Usa, As Represented By The Secretary, Department Of Health & Human Service


01/28/16
20160022484 

Optical coherence tomography-augmented surgical instruments and correcting undesired movement of surgical instruments


An oct-augmented surgical instrument able to correct for undesired movement, as well as a system for use with such a surgical instrument and a method of correcting for undesired movement during surgery using oct.. .
Novartis Ag


01/28/16
20160022243 

X-ray computed tomography apparatus


An x-ray computed tomography apparatus according to an embodiment stores a plurality of reference count data indicative of energy spectra of x-rays, which are associated with a plurality of tube voltages or tube currents. Estimation circuitry estimates a tube voltage or a tube current at a time of x-ray irradiation, based on a comparison of energy spectra between second count data and each of the plurality of reference count data.
Toshiba Medical Systems Corporation


01/28/16
20160022229 

Single photon emission computed tomography imaging method


(g) when the stress radiotracer is fixed in the heart, scanning the heart to obtain a stress perfusion image.. .

01/28/16
20160022146 

Insert imaging device for surgical procedures


Insertable imaging devices, and methods of use thereof in minimally invasive medical procedures, are described. In some embodiments, insertable imaging devices are described that can be introduced and removed from an access port without disturbing or risking damage to internal tissue.
Synaptive Medical (barbados) Inc.


01/28/16
20160022134 

Dynamic optical coherence tomography device and method


An imaging device and method is shown to image ocular tissue in motion. Devices and methods include at least one target to align the patient's eye at a desired angular orientation, multiple selectable target locations, and control circuitry to display the target at the multiple target locations and image ocular tissue at each multiple target location..

01/21/16
20160020058 

X-ray source, high-voltage generator, electron beam gun, rotary target assembly, rotary target, and rotary vacuum seal


Disclosed herein are a high-voltage generator (120) for an x-ray source, an x-ray gun, an electron beam apparatus, a rotary vacuum seal, a target assembly for an x-ray source, a rotary x-ray emission target (500), and an x-ray source. These various aspects may separately and/or together enable the construction of an x-ray source which can operate at energies of up to 500 kv and beyond, which is suitable for use in commercial and research x-ray applications such as computerised tomography.
Nikon Metrology Nv


01/21/16
20160018502 

Signal inhomogeneity correction and performance evaluation apparatus


Methods for correcting inhomogeneities of magnetic resonance (mr) images and for evaluating the performance of the inhomogeneity correction. The contribution of both transmit field and receiver sensitivity to signal inhomogeneity have been separately considered and quantified.
Yale University


01/21/16
20160018211 

Miniature optical elements for fiber-optic beam shaping


In part, the invention relates to optical caps having at least one lensed surface configured to redirect and focus light outside of the cap. The cap is placed over an optical fiber.
Lightlab Imaging, Inc.


01/21/16
20160015347 

Systems and methods for emulating dexa scores based on ct images


There is provided a computerized method for estimating a dual-energy x-ray absorptiometry (dexa) score from ct imaging data, comprising: receiving imaging data of a computed tomography (ct) scan of a body of a patient containing at least a bone portion; segmenting the bone portion from the imaging data; computing at least one grade based on pixel associated values from the bone portion; and correlating the at least one grade with at least one score representing a relation to bone density values in a population obtained based on a dexa scan; wherein the grade is computed from a calculation of sub-grades performed for each one or a set of pixels having at least one of a common medial-lateral axial coordinate and a common cranial-caudal axial coordinate along a dorsal-ventral axis of a volume representation of the imaging data.. .
Zebra Medical Vision Ltd.


01/21/16
20160015346 

Method for thoracic vertebral bone density measurement by thoracic quantitative computed tomography


A technique for measuring thoracic vertebral bone density (bmd) and coronary calcium score (ccs). Representatively, bmd was measured and averaged at three consecutive thoracic spines (3t) starting from the left main coronary artery caudally and averaging the results of the measurements at the first, second and third spine regions to obtain a thoracic trabecular bone mineral density measurement.
Los Angeles Biomedical Research Institute At Harbor-ucla Medical Center


01/14/16
20160013618 

Surface emitting laser and optical coherence tomography apparatus


In order to provide a wavelength tunable surface emitting laser capable of improving a wavelength tuning efficiency, provided is a surface emitting laser, including: a first reflector; a semiconductor cavity including an active layer; and a second reflector, the first reflector, the semiconductor cavity, and the second reflector being formed in the stated order, a gap portion being formed between the first reflector and a semiconductor layer, a cavity length being tunable, in which the surface emitting laser has a high reflectivity structure formed between the gap portion and the semiconductor cavity, and an expression of “(λ/2)×m+λ/8<l<(λ/2)×m+3λ/8” is satisfied, where l is an optical thickness of the semiconductor cavity, m is an integer of 1 or larger, and λ is a center wavelength of laser oscillation.. .
Canon Kabushiki Kaisha


01/14/16
20160012615 

Systems and methods for filtering for image generation


A method is provided including acquiring imaging data of an object to be imaged from a computed tomography (ct) detector. The method also includes reconstructing the acquired imaging data into an initial reconstruction image, and performing material characterization of an image volume of the initial reconstruction image to provide a re-mapped image volume.
General Electric Company


01/14/16
20160012586 

Scan region determining apparatus


The invention relates to a scan region determining apparatus (12) for determining a scan region of a subject to be scanned by a scanning system (10) like a computed tomography system. A spatial transformation defining a registration of an overview image and a template image with respect to each other is determined, wherein initially the overview image and the template image are registered by using an element position indicator being indicative of a position of an element of the subject with respect to the overview image.
Koninklijke Philips N.v.


01/14/16
20160011323 

Photodetector and computed tomography apparatus


A photodetector according to an embodiment includes: a photodetector element unit including a first cell array including a plurality of first cells arranged in an array and a second sell array including a plurality of second cells arranged in an array, each of the first and second cells including a photoelectric conversion element, the second cell array being arranged to be adjacent to the first cell array; a first pulse height analyzer unit analyzing a pulse height of an electrical signal outputted from the first cell array; a second pulse height analyzer unit analyzing a pulse height of an electrical signal outputted from the second cell array; and a signal processing unit determining non-uniformity of a distribution of photons entering the first and second cell arrays using an output signal of the first pulse height analyzer unit and an output signal of the second pulse height analyzer unit.. .
Kabushiki Kaisha Toshiba


01/14/16
20160011286 

Sheath current filter with integrated optical cable guide


A sheath current for an imaging magnetic resonance tomography system is provided, wherein a coil element of the sheath current filter is embodied to surround a waveguide of the sheath current filter, a local coil connection, and a local coil.. .

01/14/16
20160011284 

Dynamic field detection in a mrt


The embodiments relate to methods and an apparatus for measuring a magnetic field in a magnetic resonance tomography device with at least one field probe, wherein at least one generated delete signal may be applied to reduce a residual magnetization in the at least one field probe.. .

01/14/16
20160011105 

Light extinction tomography for measurement of ice crystals and other small particles


Systems and methods for imaging and detection of small liquid and solid water particles in different spray conditions includes visible light laser diodes that are pulsed across the area of interest and optical detectors that measure the extinction of light intensity at different directions. The attenuated light projections across the field of view are reconstructed to yield an image of the particles that crossed the plane of light.

01/14/16
20160010971 

Broadband or mid-infrared fiber light sources


An optical system includes a tunable semiconductor light emitter that generates an input beam having a wavelength shorter than about 2.5 microns, an optical isolator coupled to the emitter and configured to block reflected light into the emitter, an optical amplifier receiving the input beam and outputting an intermediate beam, and optical fibers receiving the intermediate beam and forming an output beam. A subsystem includes lenses or mirrors that deliver the output beam to a sample.
Omni Medsci, Inc.


01/14/16
20160008561 

System for automated adjustment of a pressure set by a respiration device


There is suggested a system for automated adjustment of a pressure set by a respiration device, in particular a positive end-expiratory pressure and/or a maximum airway pressure, comprising: an arrangement for electrical impedance tomography for detecting an electrical impedance distribution along at least a two-dimensional cross-section through the human thorax at least at the end of an inspiration phase and at the end of an associated expiration phase; a device for dividing the detected electrical impedance distribution at the end of the inspiration phase and at the end of the expiration phase into a plurality of eit pixels and for determining a value of the electrical impedance at the end of the inspiration phase and at the end of the expiration phase, as associated with a respective eit pixel; and a device for automated adjustment of the pressure set by the respiration device on the basis of a comparison (i) of a deviation between the value of the electrical impedance at the end of the inspiration phase associated with an individual eit pixel and the value of the electrical impedance at the end of the expiration phase associated with the respective individual eit pixel (ii) with a deviation between the value of the electrical impedance at the end of the inspiration phase and the value of the electrical impedance at the end of the expiration phase, as determined on the basis of the entirety of eit pixels.. .
Hamilton Medical Ag


01/14/16
20160007857 

Systems and methods of creating in vivo medical images of tissue near a cavity


Systems and methods of forming optical coherence tomography (oct) images of tissue near a cavity of subject are disclosed herein. In one embodiment, a method of forming an image includes transmitting light pulses toward a region of interest near the cavity and receiving light backscattered from the region of interest using an imaging probe.
University Of Washington


01/14/16
20160007854 

Apparatus and assessment of interstitial tissue


A handheld optical coherence tomography imaging and tissue sampling system and method of imaging and sampling a tissue is disclosed. The method includes inserting a catheter probe into a biopsy needle.
Physical Sciences, Inc.


01/07/16
20160003759 

Modular stretchable and flexible capacitance sensors for use with electrical capacitance volume tomography & capacitance sensing applications


A flexible capacitance sensor having multiple layers for communicating signals to a data acquisition system for reconstructing an image of an area or object located in a subject being sensed, the flexible capacitance sensor having a flexible layer of capacitance plates; a flexible shielding ground layer next to the layer of capacitance plates; a flexible layer of signal traces next to the shielding ground layer, where the layer of signal traces has a plurality of trace lines; and where the capacitance sensor is flexible and adapted to be wrapped around the subject being sensed. The sensor is adapted to communicate signals via the plurality of trace lines to a data acquisition system for providing an image of the area or object between the capacitance plates..
Tech4imaging Llc


01/07/16
20160003752 

Extended field iterative reconstruction technique (efirt) for correlated noise removal


Computerized method and system for improving 3d reconstruction images involves applying the extended field iterative reconstruction technique (efirt) to remove correlated noise, in addition to using comet (constrained maximum relative entropy tomography) to eliminate uncorrelated noise, wherein the efirt is applied by performing a set of successive reconstructions on an extended field larger than a region of interest (roi); and extracting and averaging the roi from said set of successive reconstructions.. .
Okinawa Institute Of Science And Technology School Corporation


01/07/16
20160003606 

Optical delay apparatus and optical coherence tomography apparatus


According to one embodiment, an optical delay apparatus includes the following elements. The first retroreflector includes a first and a second reflection surface.
Kabushiki Kaisha Toshiba


01/07/16
20160001897 

Controlling a propellant distribution in a spacecraft propellant tank


A system for controlling a distribution of propellant in a propellant tank assembly for a spacecraft comprises a body for containing the propellant, a plurality of thermal tomography elements, including a plurality of temperature-control elements and a plurality of temperature sensors, disposed around the body for detecting the distribution of the propellant inside the body; and a tomography element control module arranged to control the plurality of temperature-control elements to redistribute the propellant inside the propellant tank body by heating and/or cooling the propellant. In an embodiment, the propellant tank body includes a propellant management device inside the body and the tomography elements are disposed in proximity to the propellant management device.
Airbus Defence And Space Limited


01/07/16
20160000945 

Methods for evaluating brain-wide paravascular pathway for waste clearance function and methods for treating neurodegenerative disorders based thereon


Methods are provided for measuring glio-vascular pathway (“glymphatic system”) function in the brain of a mammal which include performing imaging of the brain and measuring cerebrospinal fluid-interstitial fluid (csf-isf) exchange in the brain. The methods can be used to track the exchange between csf and isf compartments.
The Research Foundation For The State University Of New York


01/07/16
20160000389 

Grated collimation system for computed tomography


A collimator for a computed tomography imaging device can include first and second leaves positioned on opposing sides of a primary radiation delivery window. The first and second leaves can include first and second gratings having a plurality of attenuating members with a plurality of secondary radiation delivery windows extending between adjacent attenuating members..
University Of Utah Research Foundation


01/07/16
20160000368 

Systems and methods for in vivo visualization of lymphatic vessels with optical coherence tomography


The present technology relates generally to systems and methods for in vivo visualization of lymphatic vessels. A system includes an optical coherence tomography (oct) device and a computing device coupled to the oct device configured to cause the oct device to perform an oct scan, generate image data in response to the oct scan, and apply an eigendecomposition filter to the image data to produce processed image data.
University Of Washington


01/07/16
20160000320 

Systems and methods for spectrally dispersed illumination optical coherence tomography


Systems and methods are presented for acquisition and processing of spectrally dispersed illumination optical coherence tomographic data. Light from a source is distributed spectrally on the sample, and each acquisition simultaneously provides partial spectral interference information from multiple locations in the sample.
Carl Zeiss Meditec, Inc.


01/07/16
20160000315 

Automated analysis of the optic nerve head: measurements, methods and representations


The present invention relates to structural analysis of the optic nerve head (onh). In one approach, a 3d volume of intensity data which includes the optic nerve head is acquired using an optical coherence tomography (oct) system.
Carl Zeiss Meditec, Inc.


12/31/15
20150380904 

Surface emitting laser and optical coherence tomography apparatus including the same


A surface emitting laser includes a lower reflector, an active layer, and an upper reflector that are arranged in that order; an air gap provided between the active layer and the upper reflector; and a slab provided on an optical path of the air gap and having a refractive index that is higher than a refractive index of the air gap. A position of at least one of the upper reflector and the lower reflector in an optical axis direction is changed to change a wavelength of emitted light.
Canon Kabushiki Kaisha


12/31/15
20150380903 

Surface emitting laser and optical coherence tomography using the surface emitting laser


A surface emitting laser including a lower reflecting mirror, an active layer, and an upper reflecting mirror in that order, having an air gap between the active layer and the upper reflecting mirror, and being able to change a wavelength of light to be emitted, includes a light-intensity adjustment unit provided on an optical path of the air gap and having optical absorption or optical gain in a wavelength range of emission light of the surface emitting laser. The wavelength of the light to be emitted is changed by displacing the light-intensity adjustment unit and at least one of the upper reflecting mirror and the lower reflecting mirror..
Canon Kabushiki Kaisha


12/31/15
20150380902 

Surface emitting laser and optical coherence tomography using the surface emitting laser


A surface emitting laser including a lower reflecting mirror, an active layer, and an upper reflecting mirror in that order, and having a gap portion between the active layer and the upper reflecting mirror, includes a movable portion provided on an optical path of the gap portion and having a refractive index different from a refractive index of the gap portion. A wavelength of light to be emitted is changed by changing positions in an optical-axis direction of at least two of the movable portion, the upper reflecting mirror, and the lower reflecting mirror..
Canon Kabushiki Kaisha


12/31/15
20150379723 

Automatic segmentation of intra-cochlear anatomy in post-implantation ct of unilateral cochlear implant recipients


A method for automatic segmentation of intra-cochlear anatomy of a patient. The patient has an implanted ear and a normal contralateral ear.
Vanderbilt University


12/31/15
20150379709 

Method for adaptive computer-aided detection of pulmonary nodules in thoracic computed tomography images using hierarchical vector quantization and same


Provided are an apparatus and method for fast and adaptive computer-aided detection of pulmonary nodules and differentiation of malignancy from benignancy in thoracic ct images using a hierarchical vector quantization scheme. Anomalous pulmonary nodules are detected by obtaining a two-dimensional (2d) feature model of a pulmonary nodule, segmenting the pulmonary nodule by performing vector quantification to expand the 2d feature model to a three-dimensional (3d) model, and displaying image information representing whether the pulmonary nodule is benign, based upon the 3d model expanded from the 2d feature model, with duplicate information eliminated by performing feature reduction performed using a principal component analysis and a receiver operating characteristics area under the curve merit analysis.
The Research Foundation For The State University Of New York


12/31/15
20150378035 

Positron emission tomography detector and positron emission tomography system using same


The present disclosure relates to a positron emission tomography detector and a positron emission tomography system using the same. More particularly, the positron emission tomography detector includes: a lower detecting unit configured to have a plurality of detector modules disposed in a ring or polygonal shape; and an upper detecting unit configured to have a plurality of detector modules which are spaced apart from each other by a predetermined distance, or of which at least some are in contact with each other to be formed on the lower detecting unit, and formed in a conical shape which is tilted by a preset angle.
Sogang University Research Foundation


12/31/15
20150377802 

Device and the nondestructive testing of tires by tomography


A device for testing a tyre (2) for representing tomographical images of sections of a casing of the tyre includes a source (11) of ionizing radiation arranged outside the tyre (2) and a detector (12) for receiving the radiation. The detector (12) is situated opposite the source (11) with respect to at least one section of the casing.
Cyxplus


12/31/15
20150377778 

Scattering tomography method and scattering tomography device


A scattering tomography method includes: radiating waves to an object from transmitting antenna elements arranged on a curved surface; receiving scattered waves by receiving antenna elements arranged on the curved surface; and reconstructing an image relating to the information on the interior of the object from scattered wave data representing the scattered waves received by the receiving antenna elements, and in the reconstructing, a function Φ for reconstructing the image relating to the information on the interior of the object is set in advance, an equation which a fundamental scattered function satisfies is constructed, a visualization function ρ that is obtained by solving the equation is derived from the scattered wave data, and the image relating to the information on the interior of the object is reconstructed using the visualization function.. .
National University Corporation Kobe University


12/31/15
20150374327 

Three-dimensional x-ray ct calibration and verification apparatus and method


An apparatus for calibrating an x-ray computed tomography device has a plurality of objects formed from a material that is visible to x-rays. The plurality of objects are configured to receive x-rays without changing shape, and have substantially the same shape.
Hexagon Metrology, Inc.


12/31/15
20150374291 

Visceral fat measurement


Dual-energy absorptiometry is used to estimate visceral fat metrics and display results, preferably as related to normative data. The process involves deriving x-ray measurements for respective pixel positions related to a two-dimensional projection image of a body slice containing visceral fat and subcutaneous fat, at least some of the measurements being dual-energy x-ray measurements, processing the measurements to derive estimates of metrics related to the visceral fat in the slice, and using the resulting estimates.
Hologic, Inc.


12/31/15
20150374228 

Optical coherence tomography device, optical coherence tomography calculation method, and optical coherence tomography calculation program


The present disclosure relates to an optical coherence tomography (oct) including: an oct device, an oct calculation method, and an oct calculation program, enabling correlation between images to be easily performed; more specifically it relates to a case where a functional oct image such as a motion contrast is acquired by using the oct; acquiring the functional oct image through a calculation process of an oct signal is a time-consuming process, for this reason, a long time elapses until the point that a functional oct image can be observed after oct imaging is completed, and thus this causes stress to a subject and an examiner; the present disclosure provides an oct device, an oct calculation method, and an oct calculation program, enabling a functional oct image to be rapidly acquired and enables an examiner to easily perform diagnosis.. .
Nidek Co., Ltd.


12/31/15
20150374227 

Optical coherence tomography apparatus and data processing program


An optical coherence tomography apparatus includes an oct optical system configured to detect an oct signal based on measurement light scanned on scan positions of a subject including a blood vessel network by a scanning unit and reference light. The optical coherence tomography apparatus is configured to execute: a signal processing instruction of processing oct signals which are temporally different from each other with respect to a same position on the subject and generating a motion contrast image which images distribution of a moving object in a depth direction at each of the scan positions based on the oct signals; and a detecting instruction of analyzing a profile in the depth direction of the motion contrast image generated by the signal processing unit and detecting a change resulting from the blood vessel to detect the blood vessel network included in the subject..
Nidek Co., Ltd.


12/24/15
20150373431 

Split spectrum spectral domain optical coherence tomography


A spectral domain optical coherence tomography apparatus for measuring a sample. The spectral domain optical coherence tomography includes a broadband light source, that supplies broadband light to the sample and a reference.
Canon Kabushiki Kaisha


12/24/15
20150371401 

Methods and systems for imaging tissue motion using optical coherence tomography


A system and method for measuring tissue motion within a living tissue of the fundus of the eye, including the onh, in a subject are provided. A phase-sensitive oct using time-lapse b-scans is provided to measure movement of fundus tissue and isolate the onh component of the tissue, allowing for accurate evaluation of pulse-induced onh movement.
University Of Washington


12/24/15
20150368230 

Radiolabeled quinazoline derivatives


Novel radiotracer for positron emission tomography (pet) or single photon emission computed tomography (spect) imaging are described. Specifically, the invention relates to 18f-labeled afatinib suitable as a pet or spect tracer for imaging epidermal growth factor receptor (egfr, erbb1) and human epidermal growth factor receptor 2 (her2, erbb2), to a precursor compound for use in its synthesis, to methods for the preparation 18f-labeled afatinib, as well as to the use thereof in in vivo diagnosis, tumor imaging or patient stratification on the basis of mutational status of egfr (erbb1) and her2 (erbb2)..
Stichting Vu-vumc


12/24/15
20150367000 

Biospecific agents for bone


A bone biospecific agent comprises a contrast material core, which is visible using magnetic resonance imaging (mri) or computed tomography (ct). The contrast material core is surrounded by a polymeric shell, which is functionalised with a bone-targeting peptide.
Orthopaedic Research Uk


12/24/15
20150366450 

Ophthalmic imaging system with automatic retinal feature detection


A method of automatically detecting a retinal feature using an ophthalmic imaging system can include: acquiring an optical coherence tomography (oct) image of a retina; segmenting the oct image; generating a metric based on the segmented oct image; detecting the retinal feature based on the metric; and providing an indication of the detected retinal feature to a user. An ophthalmic imaging system can include: an oct system configured to acquire an image of a retina; a computing device coupled to the oct system and configured to segment the image, generate a metric based on the segmented image, and detect a retinal feature based on the metric; and an audio/visual/tactile device in communication with the computing device and configured to provide at least one of an audio, visual, and tactile indication of the detected retinal feature to a user..
Novartis Ag


12/17/15
20150363948 

Direct patlak estimation from list-mode pet data


A medical imaging system for reconstructing quantitative dynamic nuclear medicine images of a subject may include a three dimensional positron emission tomography (3d pet) scanner and a data processing system. The three dimensional positron emission tomography (3d pet) scanner may: perform scans of the subject at each of multiple bed positions, each scan being of only a sub-portion of the subject that is within an axial length covered by the scanner; and generate dynamic list-mode pet data that: represents a total number of photon pairs arriving at each of multiple detector pairs in the 3d pet scanner; and is organized in a list of elements, each element in the list including a detector pair index and an arrival time for each detected photon pair; and acquires pet data using a dynamic pet protocol with at least two scans at each of the multiple bed positions.
University Of Southern California


12/17/15
20150363947 

Spectral x-ray computed tomography reconstruction using a vectorial total variation


An apparatus and method of reconstructing a computed tomography (ct) image using multiple datasets of projective measurements, wherein the method of image reconstruction favors spatial correlations among the images respectively reconstructed from each of the corresponding multiple datasets. The multiple data sets each contain projective measurements of the same object taken in close temporal proximity, but taken with different detector type or configurations (e.g., different spectral components in spectral ct or different detector types in hybrid 3rd- and 4th-generation ct scanners).
Toshiba Medical Systems Corporation


12/17/15
20150363630 

System and fingerprint validation


The invention provides a system and method for rapid validation of identity from tissue using registered two dimensional and optical coherence tomography (oct) scan images. The preferred embodiment provides, for a human fingerprint, validation that the surface fingerprint matches the primary fingerprint.

12/17/15
20150362604 

Detector


The invention relates to a detector (6) for detecting radiation, especially x-ray radiation used in a computed tomography system. The detector comprises a direct conversion material (9) for converting radiation into electrons and holes, which are used for generating an electrical detection signal.
Philips Gmbh


12/17/15
20150362440 

Optimization of the source firing pattern for x-ray scanning systems


The present application discloses a computed tomography system having non-rotating x-ray sources that are programmed to optimize the source firing pattern. In one embodiment, the ct system is a fast cone-beam ct scanner which uses a fixed ring of multiple sources and fixed rings of detectors in an offset geometry.
Rapiscan Systems, Inc.


12/17/15
20150362428 

System and elimination of fresnel reflection boundary effects and beam steering in pulsed terahertz computed tomography


A method of reducing boundary effect in a thz-ct image includes correcting steering of the thz beam and/or fresnel reflection prior to reconstruction of the thz image, the method including tomographically scanning an object at selected rotational positions to obtain a plurality of projection slices, and prior to reconstructing the thz-ct image using a radon transformation, applying to each of the plurality of projection slices an algorithm to determine a location of left and right edges of the object relative to the center of rotation of the object, determining a range of values for which the measured attenuation is not instrument limited based on a maximum detectable attenuation, and applying a further algorithm representing the corrected attenuation projection array data which will be inverted using the radon transformation, the algorithm including an experimentally measured attenuation, correction for beam steering, and accounting for fresnel reflection loss at the incident and exiting air-object interfaces.. .



Tomography topics: Tomography, Imaging System, Computed Tomography, Positron Emission Tomography, Control Unit, Data Acquisition, Ion Source, Semiconductor, Charge Amplifier, Single Photon

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