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Tomography patents

      

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




patent app List of recent Tomography-related patents
 Computed tomography scanner calibration with angle correction for scan angle offset patent thumbnailComputed tomography scanner calibration with angle correction for scan angle offset
A method and apparatus of aligning calibration projection data with object projection data to improve calibration corrections of the object projection data. In a first implementation, the method interpolates and upsamples both the calibration and object data, then shifts the upsampled calibration data to match a sub-view angular offset of the object data, and then performs calibration corrections before down-sampling the corrected object data.
Toshiba Medical Systems Corporation


 A nano-sensitive fourier-domain optical coherence tomography inspection system patent thumbnailA nano-sensitive fourier-domain optical coherence tomography inspection system
An oct imaging system (100) comprising a radiation emitter (sld), a radiation receiver ccd), an interferometer (fc, pc, x-scan, y-scan), a controller (comp) which controls the emitter and processes received radiation data according to oct to provide an output image. The controller (comp) forms a spectrum of spatial frequencies along the depth direction.
National University Of Ireland, Galway


 Methods and systems for intraoperatively confirming location of tissue structures patent thumbnailMethods and systems for intraoperatively confirming location of tissue structures
Systems, methods and devices are provided for intraoperatively confirming location of tissue structures during medical procedures. Preoperative image data of a patient's skeletal structure in a vicinity of an anatomical part undergoing a medical procedure is acquired.

 Computed tomography system having cooling system patent thumbnailComputed tomography system having cooling system
A cooling system of a computed tomography (ct) system provides for a more efficient operation than known heretofore. The cooling system of the ct system includes a gantry and a table that moves an object into a bore of the gantry.
Samsung Electronics Co., Ltd.


 Computed tomography system having cooling system patent thumbnailComputed tomography system having cooling system
Cooling systems of a ct system and methods of cooling the ct system are disclosed. The ct system includes a gantry and a table that moves an object into a bore of the gantry, wherein the gantry includes a cover having a front surface in which at least an inlet slot is formed and a rear surface in which exhaust holes are formed along with exhaust fans in the rear surface of the cover of the gantry.
Samsung Electronics Co., Ltd.


 System and  quantifying pigmented lesion using oct patent thumbnailSystem and quantifying pigmented lesion using oct
Disclosed herein is a method for quantifying a pigmented lesion using optical coherence tomography (oct). The method includes (a) irradiating light and receiving an interference signal produced by reflection of the light from first and second boundary layers of a pigmented lesion; and (b) calculating size information of the pigmented lesion using phase information of the interference signal.
Korea Photonics Technology Institute


 Electrical impedance tomography device and electrical impedance tomography method patent thumbnailElectrical impedance tomography device and electrical impedance tomography method
An electrical impedance tomography device includes a plurality of electrodes, a display apparatus, and a control and evaluation unit for reconstructing a matrix of image elements, a spatial distribution of impedance changes in an electrode plane, from measurement signals with a reconstruction algorithm. A time series of matrices are provided from an inhalation and an exhalation that follow.
DrÄgerwerk Ag & Co. Kgaa


 Methods for assessing health conditions using single coil magnetic induction tomography imaging patent thumbnailMethods for assessing health conditions using single coil magnetic induction tomography imaging
Methods for assessing a health condition of an individual using single coil magnetic induction tomography imaging are provided. A target area for medical imaging on a patient can be identified.
Kimberly-clark Worldwide, Inc.


 Method and system for improving aiming during optical coherence tomography on young children by synchronization with retinal bifringence scanning patent thumbnailMethod and system for improving aiming during optical coherence tomography on young children by synchronization with retinal bifringence scanning
The present invention is directed to a method and system for improved aiming during optical coherence tomography (oct) on young children and those unable to cooperate with oct imaging by synchronization with retinal birefringence scanning (rbs). Oct is performed without knowing whether or not the subject is looking at the intended target.
Duke University


 Wavelength tunable laser device and optical coherence tomography apparatus patent thumbnailWavelength tunable laser device and optical coherence tomography apparatus
A wavelength tunable laser device, including: a first reflector; a second reflector; an active layer formed between the first reflector and the second reflector; a quantum well structure layer that exhibits a quantum confined stark effect; and an electrode configured to apply a reverse bias voltage to the quantum well structure layer, wherein the active layer and the second reflector have a gap formed therebetween, the gap having a length to be changed to thereby sweep a resonance wavelength, and wherein the electrode is further configured to change application of the reverse bias voltage to be applied to the quantum well structure layer depending on the length of the gap when the resonance wavelength is swept.. .
Canon Kabushiki Kaisha


Method for determining an axis of rotation of an object in tomography and characterization by tomography


Determine the real rotation axis using total offsets determined for all zones.. .

Spectral fractionation detection of gold nanorod contrast agents using optical coherence tomography


Methods and systems for detecting a gold nanorod (gnr) contrast agent in an optical coherence tomography (oct) image of a sample are disclosed. In one example approach, a method comprises separating the oct image at the location into short and long wavelength halves around a center wavelength of the oct system, calculating a ratio between the short and long wavelength halves, and indicating a gold nanorod contrast agent at the location based on the ratio.
Oregon Health & Science University


Electronics enabling muon tomography using ambient cosmic radiation


Techniques, systems and apparatus are described for a multimode passive detection system (mmpds). A mmpds includes a detector assembly of array of drift tubes arranged as detector modules to generate detector signal data representing electrical responses to cosmic ray charged particles passing through respective detector modules and traversing through a volume of interest (voi).
Decision Sciences International Corporation


Detector a computed tomography system


A detector apparatus includes a number of detectors for assigned radiation sources of a computed tomography system, wherein each detector may require a constant input voltage in a range between 900 v and 1200 v. During operation of the detector apparatus, an auxiliary voltage is fed to a high voltage source to supply power to the input terminals on the number of detectors.
Siemens Aktiengesellschaft


System and inspecting subsea vertical pipeline


A device for discovering, identification and monitoring, of mechanical flaws in metallic structures is disclosed, based on magneto-graphic/magnetic tomography technique to identify stress-related defects. The device can determine the position of the defect or stress including depth information.

Swept-source optical coherence tomography (ss-oct) system with silicon photonic signal processing element having matched path lengths


Aspects of the present disclosure are directed to architectures, methods and systems and structures having application to an interferometric optical system such as a swept-source optical coherence tomography (ss-oct) system including an optical processing element having dual-polarization and dual-balanced in-phase and quadrature processing and photodetection paths on a single integrated photonic chip wherein lengths of the paths are less than or equal to the spatial resolution of a laser source.. .

Annular scanning device for optical tomography scanning and imaging system


The present invention relates to an annular scanning device for optical tomography scanning and imaging system, which comprises a carrying base, a rotating member, a plurality of optical channel modules, and a driving module. The rotating member is disposed on the carrying base.
National Central University


Integrated microtomography and optical imaging systems


An integrated microtomography and optical imaging system includes a rotating table that supports an imaging object, an optical stage, and separate optical and microtomography imaging systems. The table rotates the imaging object about a vertical axis running therethrough to a plurality of different rotational positions during a combined microtomography and optical imaging process.
Caliper Life Sciences, Inc.


Dynamic positron emission tomography imaging


An emission tomography system and method are used to acquire a series of medical images of a subject during an imaging process using a radiotracer. The system includes detectors for acquiring gamma rays emitted from the subject after administration of the radiotracer.
The General Hospital Corporation


Volume analysis and display of information in optical coherence tomography angiography


Computer aided visualization and diagnosis by volume analysis of optical coherence tomography (oct) angiographic data. In one embodiment, such analysis comprises acquiring an oct dataset using a processor in conjunction with an imaging system; evaluating the dataset, with the processor, for flow information using amplitude or phase information; generating a matrix of voxel values, with the processor, representing flow occurring in vessels in the volume of tissue; performing volume rendering of these values, the volume rendering comprising deriving three dimensional position and vector information of the vessels with the processor; displaying the volume rendering information on a computer monitor; and assessing the vascularity, vascular density, and vascular flow parameters as derived from the volume rendered images..

Acquisition and analysis techniques for improved outcomes in optical coherence tomography angiography


Methods for improved acquisition and processing of optical coherence tomography (oct) angiography data are presented. One embodiment involves improving the acquisition of the data by evaluating the quality of different portions of the data to identify sections having non-uniform acquisition parameters or non-uniformities due to opacities in the eye such as floaters.
Carl Zeiss Meditec, Inc.


Systems and methods of optical coherence tomography with a multi-focal delay line


An optical coherence tomography (oct) system includes: a light source; a multi-focal delay line; and a light detector. The multi-focal delay line includes: a positive lens; and an optical switch configured to: receive a light from the light source; selectively direct the sample light to the positive lens via a selected one of a plurality of light interfaces each located a different distance from the focal plane of the positive lens; and direct the sample light to an object to be measured.
Amo Wavefront Sciences, Llc


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.


Processing optical coherence tomography scans of a subject's skin


A method of processing optical coherence tomography (oct) scans of a subject's skin (7), the skin (7) having a surface (8), the method comprising capturing a plurality of scans through the subject's skin (7), the scans representing an oct signal in slices through the user's skin (7) in parallel planes, the scans being offset from one another along a direction perpendicular to the parallel planes, the method comprising determining the position of the surface (8) of the skin (7) in each scan and displaying the scans to a user with an indication (9) indicative of a predetermined depth below the surface (8) of the skin (7) visible to the user.. .
Michelson Diagnositics Ltd.


Borehole while drilling electromagnetic tomography advanced detection apparatus and method


A borehole while-drilling electromagnetic tomography advanced detection apparatus includes a site host, a drilling rig, a detecting pipe screwed coupling on one end to a drilling stem of the drilling rig, a drilling bit screwed coupling to the other end of the detecting pipe, wherein the detecting pipe is provided with a probe comprising a transmitting coil, a receiving coil, an electromagnetic transmitting module, an electromagnetic receiving module, a scm (single chip microcomputer), a 3d electronic compass, a network interface of the probe and a first memory, in which the memory port of the scm is connected to the first memory, and the network interface of the probe can be data-communicated with the site host.. .
Wuhan Changsheng Mine Security Technology Limited


Histogram smoothing in positron emission tomography (pet) energy histograms


A medical nuclear imaging system (10) and method (100) generate smooth energy histograms. Radiation events are detected by a plurality of detectors (14), the radiation events localized to a plurality of pixels of the detectors (14).
Koninklijke Philips N.v.


Method of exact image reconstruction for cone beam tomography with arbitrary source trajectory


The said algorithm admits a high instruction level of parallelism for reducing the computing time.. .

Apparatuses and methods for determining the beam width of a computed tomography scanner


A method for determining a beam width of a computed tomography scanner includes calculating a dose length product dlp and dividing it by an accumulated radiation dose d(0). In some embodiments, dlp is calculated from measurements obtained using a pencil ionization chamber and a radiopaque mask that is slid over the chamber.
The Uab Research Foundation


Optical imaging multi-depth image


Provided are an optical imaging apparatus for multi-depth image and an imaging system having the same, where an optical lens of a sample stage of an optical imaging apparatus is used as a liquid lens, so that it is possible to acquire an optical image such as a photoacoustic image, an optical coherence tomography image, or a fluorescent image while finely and speedily changing a depth, and it is possible to acquire optical images having various depths by only user's simple control.. .
Postech Academy-industry Foundation


X-ray computed tomography apparatus and x-ray detector


According to one embodiment, the x-ray computed tomography apparatus includes an x-ray tube, a rotating frame, a plurality of detector elements, a plurality of das elements, switching circuitry, and switching control circuitry. The x-ray tube generates x-rays.
Toshiba Medical Systems Corporation


Gantry system for ct imaging system and methods of assembling same


A gantry system for use with a computed tomography imaging system is provided. The gantry system includes a frame, a support rail coupled to the frame, and a plurality of rollers.
Morpho Detection, Llc


Cost-function based projection-domain basis decomposition in spectral computed tomography


A global optimization and apparatus to decompose spectral computed tomography (ct) projection data into basis materials. A cost function is defined to represent the difference between the measured projection data and calculated attenuation data using projection lengths for the basis materials with corresponding material models and a detector model to calculate the detector response.
Toshiba Medical Systems Corporation


A detecting device for determining a position of reaction of gamma quanta and a determining a position of reaction of a gamma quanta in positron emission tomography


A detector device for determining a position of reaction of gamma quanta, the device comprising: a detection layer comprising: at least one polymeric or inorganic scintillator (12, 22) for absorbing gamma quanta and for emitting and propagating scintillation photons; and photoelectric converters (14,24) for converting light signals of the scintillation photons into electric signals; and at least one additional layer comprising: strips of material (13, 23) for absorbing the scintillation photons and for emitting and propagating secondary photons; and photoelectric converters (15, 25) for converting the light signals for the scintillation photons into electric signals.. .
Uniwersytet Jagiellonski


Mr field probes with additional windings for improving the homogeneity and localizing the measuring volume


The embodiments relate to a method and field probes for measuring a static and/or in particular a dynamic magnetic field in an imaging magnetic resonance tomography system, wherein the field probe includes a body surrounded by a coil. The coil includes a middle or center winding section and at least one or two outer winding sections..

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.. .

Method for scanogram scans in photon-counting computed tomography


A computed tomography (ct) imaging apparatus includes an x-ray source to emit x-rays; a plurality of photon-counting detectors (pcds) arranged in a circular ring between the x-ray source and a ct detector; and processing circuitry to cause the x-ray source and the ct detector to perform a helical scan of an object to obtain projection data; extract, from the obtained projection data, a plurality of sets of projection data corresponding to a plurality of x-ray tube positions of the helical scan; and combine the plurality of sets of extracted projection data to obtain a scanogram.. .
Toshiba Medical Systems Corporation


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


Apparatus and obtaining computed tomography


Apparatus and method for obtaining computed tomography are disclosed. The computed tomography apparatus includes: an x-ray sensor and an x-ray generator disposed on both sides of a subject and facing each other; a first driving unit configured to move at least one of the x-ray sensor and the x-ray generator reciprocally in an angle range; and a second driving unit moving configured to move at least one of the x-ray sensor and the x-ray generator in a vertical direction of the object, simultaneously or alternately with the first driving unit.
Vatech Ewoo Holdings Co., Ltd.


Analysis of optical tomography (oct) images


A method includes storing three-dimensional image data acquired intravascularly via an optical coherence tomography (oct) apparatus. The image data is analyzed to compute a probability estimate of stent presence at support positions appearing in an a-line.
Case Western Reserve University


Optical imaging or spectroscopy systems and methods


Optical imaging or spectroscopy described can use laminar optical tomography (lot), diffuse correlation spectroscopy (dcs), or the like. An incident beam is scanned across a target.
The Trustees Of Columbia University In The City Of New York


Fourier ptychographic tomography


Certain aspects pertain to fourier ptychographic tomographic systems and methods for acquiring a plurality of uniquely illuminated intensity measurements based on light passing through a thick sample from plane wave illumination at different angles and for constructing three-dimensional tomographic data of the thick sample by iteratively determining three-dimensional tomographic data in the fourier domain that is self-consistent with the uniquely illuminated intensity measurements.. .
California Institute Of Technology


A system for acquisition of tomographic measurement data


A system for acquisition of tomographic measurement data from measurement signals (s) of positron emission tomography (pet) or single-photon emission computed tomography (spect) detectors, the system comprising: a front-end electronic assembly (2) configured to convert the measurement signals (s) into digital and analog signals (das); a measurement electronics assembly (3) comprising time to digital converter (tdc) modules (31) configured to determine times (t) of pulses in digital signals (ds). The measurement electronics assembly (30) comprises: a series (tdca-tdcd) of tdc modules (31), each module comprising a series (tdc1-tdc4) of tdc circuits (311-314); a module controller (315) configured to transmit a clock signal (clk), input to the module controller (315) from a system controller (40), to each of the tdc circuits (311-314); wherein each of the tdc circuits (311-314) is configured to execute measurements in a measurement window delimited by the neighboring edges of the clock signal (clk) which is common for all tdc circuits (311-314)..
Uniwersytet Jagiellonski


Motion sensor


A motion sensor for detecting movements of a patient in an imaging medical system, in particular in a magnetic resonance tomography system has at least one hf resonator for emitting an hf signal fed into the resonator from an hf signal source and for receiving a response signal, and a detection circuit for detecting movements of the patient derived from the received signal.. .
Siemens Aktiengesellschaft


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


Integrated intraoperative diagnosis and thermal therapy system


A multimodal medical device for the diagnosis and/or thermal treatment of a disease includes an instrument for performing thermal therapy; and an imaging system having multiple tomographic imaging modes, including optical coherence tomography (oct), ultrasound imaging, photoacoustic (pa) imaging, fluorescence imaging and/or thermal imaging to provide guidance for accurate diagnosis and treatment of the disease.. .
Med-x Institute Shanghai Jiao Tong University


Method and system for controlling computer tomography imaging


A method, a device, a system and a computer program are for controlling limited-area computer tomography imaging. The method includes determining location data of a first imaging object when the first imaging object is positioned in an imaging area, determining reference location data related to the first imaging object and adjusting the imaging area based on the location data of the first imaging object and said reference location data for imaging a second imaging object.
Palodex Group Oy


Computed tomography having motion compensation


The embodiments relate to a method for producing a digital volume model of a body volume by a sensor device, which sensor device includes a plurality of radiation sensors, of which each produces a pixel value in a projection. In order to produce the volume model, a plurality of projections from different projection angles (a) are produced and the volume model is computed from sensor positions of the radiation sensors and pixel values of the radiation sensors.
Siemens Aktiengesellschaft


Tomography imaging apparatus and method


A tomography imaging apparatus and a tomography imaging method are provided. The tomography imaging apparatus includes a data acquirer configured to acquire first x-ray data of an object for each of energy bands, and an image preprocessor configured to perform a beam hardening correction on the first x-ray data for each of the energy bands, to generate second x-ray data of the object.
Samsung Electronics Co., Ltd.


Adaptive electrical capacitance volume tomography


An electrical capacitance tomography sensor comprised of a sensor having a plurality of electrodes, where each electrode is further comprised of a plurality of capacitance segments. Each of the capacitance segments of each electrode can be individually addressed to focus the electric field intensity or sensitivity to desired regions of the electrodes and the sensor..
The Ohio State University


Post-processing reduction of fixed pattern artifacts and trigger jitter in swept-source optical coherence tomography


Disclosed herein are methods and systems for aligning swept-source optical coherence tomography (ss-oct) spectral interferograms to a reference spectral interferogram based on signal information (e.g., amplitude or phase) at a fixed-pattern noise location to reduce residual fixed-pattern noise and improve the phase stability of ss-oct systems.. .
Oregon Health & Science University


Geographic atrophy identification and measurement


Geographic atrophy of the eye can be detected and measured by imaging the eye at a depth greater than the retinal pigment epithelium (rpe) at a plurality of locations of the eye, for example, using optical coherence tomography (oct); determining a ratio of the intensities of imaging signals of a retinal layer(s) with respect to the intensity of imaging signals of a sub-rpe layer(s) at each location; determining representative values based at least in part on the determined ratios; generating a map of the representative values; and identifying diseased areas from the map. Contours and binary maps may be generated based on the identified diseased areas.
Kabushiki Kaisha Topcon


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.


Wide x-ray spectrum photon counting computed tomography


A computed tomography (ct) imaging apparatus includes a radiation source configured to emit x-rays; a plurality of photon-counting detectors configured to detect x-rays emitted by the radiation source and generate a photon counting signal based on the detected x-rays; and processing circuitry to obtain a kv-waveform used by the radiation source to generate the x-rays during a scan of an object, and adjust at least one energy threshold dividing the photon counting signal into a plurality of spectra bins in accordance with the obtained kv-waveform.. .
Toshiba Medical Systems Corporation


Computed tomography using simultaneous image reconstruction with measurements having multiple distinct system matrices


A method and apparatus is provided to reconstruct a collective image of a multiple method/geometry imaging system (e.g., a hybrid computed tomography system having energy-integrating detectors arranged in a third-generation geometry and photon-counting detectors arranged in a fourth generation geometry), wherein a splitting-based iterative algorithm using modified dual variables is used in the image reconstruction. Whereas a separate image for each method/geometry of the multiple method/geometry imaging system can be obtained by solving the distinct system-matrix equation corresponding to each respective method/geometry, the collective image is obtained by simultaneously solving a collective optimization problem including all respective system-matrix.
Toshiba Medical Systems Corporation


Method and device for restoring scan image and recording medium for storing same


Disclosed is a method for restoring a scan image. The method includes the steps of: measuring a blurring function oversampled with respect to a slit image obtained through a slit inclined at a predetermined angle in a vertical or horizontal direction according to the predetermined angle; and restoring a scan image to increase a resolution of an interface of a subject in the scan image obtained by obtaining the subject using the measured blurring function.
Vatech Ewoo Holdings Co., Ltd.


Reflective optical coherence tomography probe


A beam-shaping optical system suitable for use with optical coherence tomography includes a beam-shaping body having a beam-shaping element and an alignment feature. An optical fiber is coupled to the alignment feature.
Corning Incorporated


Performing tomography to build orthorhombic models


Systems, methods, and computer-readable media for determining a velocity model. The method includes receiving a first velocity model having a first symmetry approximation of a media of a subterranean domain, receiving seismic data representing a subterranean formation, and determining, by operation of a processor, a second velocity model having a second symmetry approximation of the media, the second symmetry approximation being less symmetric than the first symmetry approximation.
Westerngeco L.l.c.


More efficient detector response correction and material decomposition of projection data obtained using photon-counting detectors


An apparatus and method of processing x-ray projection data including spectral computed tomography (ct) projection data. The spectral ct data is decomposed into material projection lengths using a material-decomposition method that includes an initial-estimate method to provide an initial projection-lengths estimate.
Toshiba Medical Systems Corporation


Method for scanogram scans in photon-counting computed tomography


A computed tomography (ct) imaging apparatus for performing a scanogram includes a radiation source to emit x-rays; a plurality of photon-counting detectors (pcds) arranged in a circular ring between the radiation source and a ct detector; and processing circuitry to perform a first scan to obtain projection data; determine a plurality of dark channels by comparing the obtained projection data to a predetermined threshold; add at least one adjacent padding channel to the determined plurality of dark channels to determine a plurality of shadowed channels; generate a correction map from the determined plurality of shadowed channels; and correct a scanogram obtained by a second scan based on the generated correction map. The apparatus reduces the shadow effects in the scanogram scan..
Toshiba Medical Systems Corporation


Method and photoacoustic tomography using optical orbital angular momentum (oam)


A method and system for remote sensing. The method includes applying an orbital angular momentum (oam) mode on a light beam to generate an oam light beam having an optical oam spectrum, exposing a target object to the oam light beam such that the target object absorbs energy of the oam light beam to generate ultrasonic emissions, the ultrasonic emissions having a reflected oam spectrum associated with the target object, and generating a high resolution image of the target object based on the reflected oam spectrum..
Nec Laboratories America, Inc.


Combining multiple energy x-ray imaging and well data to obtain high-resolution rock, mechanical, and elastic property profiles


A method is provided for evaluating a geological formation which integrates well data and high resolution computed tomography of rock samples thereof. Relationships are determined for a formation between a formation property, such as an elastic property, and at least one of photoelectric effect index (pef), effective atomic number (zeff), and bulk density (rhob), using well data, and tomographic imaging is used to determine at least one of the latter mentioned properties (pef, zeff, rhob) at higher resolution, which can be used in the relationship to determine a corresponding formation property.
Ingrain, Inc.


Overdetermined positron emission tomography


The present disclosure relates to increasing the spatial resolution of a clinical positron emission tomography (pet) scanner. The spatial resolution of the clinical pet scanner can be increased by placing a collimator, including a plurality of pinholes, inside the clinical pet scanner.
The Cleveland Clinic Foundation


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


Architecture for cascaded signal selection and signal concentration and/or reduction of digital received data by decimation and channel preselection


A magnetic resonance tomography system includes a plurality of mrt plugs for connection of antenna elements, respectively, of one of a plurality of local coils. Due to at least one analog switch matrix, antenna elements respectively connected to fewer than all of the mrt plugs may be connected in an analog fashion to receive signal processing elements of one of a plurality of receive signal processing element blocks respectively having a plurality of receive signal processing elements.

Conjugates for imaging


The invention described herein relates to conjugates and compositions for imaging, diagnosing, and/or monitoring diseases using radionuclide-based imaging. In particular, the invention described herein relates to conjugates and compositions for imaging, diagnosing, and/or monitoring diseases using positron emission tomography..
Endocyte, Inc.


Treatment of rhinosinusitis with p-glycoprotein inhibitors


Provided herein are, inter alia, methods for treating rhinosinusitis with p-glycoprotein inhibitors. A subject having rhinosinusitis is identified and then treated by administration to the subject an effective amount of a p-gp inhibitor.
Massachusetts Eye & Ear Infirmary


Microwave energy-delivery device and system


An ablation system including an image database storing a plurality of computed tomography (ct) images of a luminal network and a navigation system enabling, in combination with an endoscope and the ct images, navigation of a locatable guide and an extended working channel to a point of interest. The system further includes one or more fiducial markers, placed in proximity to the point of interest and a percutaneous microwave ablation device for applying energy to the point of interest..
Covidien Lp


Atherectomy catheters devices having multi-channel bushings


Atherectomy catheters and methods of using them are described herein. In particular, described herein are optical coherence tomography (oct) catheters that may include a distal tip that can be deflected away from the long axis of the device using a multi-channel bushing.

Computer tomography image reconstruction


A method for reconstructing a computer tomography (ct) image is disclosed. The method may comprise: obtaining a x-ray projection data frame and a dynamic sensor information data frame, wherein the x-ray projection data frame may include a first timestamp indicating acquisition time of x-ray projection data and the dynamic sensor information data frame may include a second timestamp indicating acquisition time of dynamic sensor information data; extracting the first timestamp from the x-ray projection data frame and extracting the second timestamp from the dynamic sensor information data frame; searching x-ray projection data and dynamic sensor information data which may be acquired in same sampling period according to a first timestamp and a second timestamp; and reconstructing a ct image according to the searched x-ray projection data and dynamic sensor information data which may be acquired in the same sampling period..

Enhanced imaging devices, and image construction methods and processes employing hermetic transforms


In an exemplary embodiment, a tomography device comprises a scanner that obtains image slices. The device additionally comprises at least one processor configured to: perform a hermetic transform on the image slices to obtain hermetically transformed data using; filter and perform an inverse hermetic transform on the hermetic transform data to obtain filtered inverse hermetic transform data; and perform back projection and angle integration on the filtered inverse hermetic transform data..



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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