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1965results about "Radiation diagnostic device control" patented technology

Assisted Guidance and Navigation Method in Intraoral Surgery

An assisted guidance and navigation method in intraoral surgeries is a method using computerized tomography (CT) photography and an optical positioning system to track medical appliances, the method including: first providing an optical positioning treatment instrument and an optical positioning device; then obtaining image data of the intraoral tissue receiving treatment through CT photography, precisely displaying actions of the treatment instrument in the image data, and real-time checking an image and guidance and navigation. Therefore, during the surgery, the existing use habits of the physicians are not affected and accurate and convenient auxiliary information is provided, and attention is paid to using the treatment instrument in physical environments such as a patient's tooth or dental model.
Owner:HUANG JERRY T +1

X-ray imaging apparatus and its control method

In an X-ray imaging apparatus, which has a radiation source for generating radiation, and a detector for detecting the amount of radiation of the radiation, a subject is relatively rotated with respect to radiation which is radiated from the radiation source in the direction of the detector, and radiation amount data for image reconstruction is acquired in a predetermined rotation section. At this time, a desired observation direction perpendicular to the rotation axis in association with the subject is designated, and the position of the predetermined rotation section is determined on the basis of the designated observation direction.
Owner:CANON KK

Portable medical imaging system

A medical imaging system includes a movable station and a gantry. The movable station includes a gantry mount rotatably attached to the gantry. The gantry includes an outer C-arm slidably mounted to and operable to slide relative to the gantry mount, an inner C-arm slidably coupled to the outer C-arm and, an imaging signal transmitter and sensor attached to the C-arms. The two C-arms work together to provide a full 360 degree rotation of the imaging signal transmitter.
Owner:GLOBUS MEDICAL INC

Method and apparatus for increasing field of view in cone-beam computerized tomography acquisition

A method and apparatus for Cone-Beam Computerized Tomography, (CBCT) is configured to increase the maximum Field-Of-View (FOV) through a composite scanning protocol and includes acquisition and reconstruction of multiple volumes related to partially overlapping different anatomic areas, and the subsequent stitching of those volumes, thereby obtaining, as a final result, a single final volume having dimensions larger than those otherwise provided by the geometry of the acquisition system.
Owner:CEFLA SOC COOP

Method and system for position orientation correction in navigation

A method performed in a medical navigation system includes driving a transmitter at a first frequency and a second frequency to generate first and second electromagnetic fields, wherein the first and second frequencies are sufficiently low such that the first and second electromagnetic fields are frequency independent; receiving first and second distorted fields corresponding to the first and second electromagnetic fields, respectively, with each of at least two electromagnetic (EM) sensors attached to a surgical device; generating first and second signals in response to receiving the first and second distorted fields, respectively, using each of the at least two EM sensors; and determining a distortion in the first and second signals based at least on a distance between the at least two EM sensors and a difference between the first and second signals generated by each of the at least two EM sensors.
Owner:STRYKER EURO OPERATIONS HLDG LLC

Radioactive-emission-measurement optimization to specific body structures

InactiveUS20070156047A1Inexpensive and portable hardwareRapid and inexpensive preliminary indicationImage enhancementImage analysisSonificationWhole body
Systems, methods, and probes are provided for functional imaging by radioactive-emission-measurements, specific to body structures, such as the prostate, the esophagus, the cervix, the uterus, the ovaries, the heart, the breast, the brain, and the whole body, and other body structures. The nuclear imaging may be performed alone, or together with structural imaging, for example, by x-rays, ultrasound, or MRI. Preferably, the radioactive-emission-measuring probes include detectors, which are adapted for individual motions with respect to the probe housings, to generate views from different orientations and to change their view orientations. These motions are optimized with respect to functional information gained about the body structure, by identifying preferred sets of views for measurements, based on models of the body structures and information theoretic measures. A second iteration, for identifying preferred sets of views for measurements of a portion of a body structure, based on models of a location of a pathology that has been identified, makes it possible, in effect, to zoom in on a suspected pathology. The systems are preprogrammed to provide these motions automatically.
Owner:SPECTRUM DYNAMICS MEDICAL LTD

Mammographic apparatus, breast compression plate, and breast fixing method

A mammographic apparatus is set to take a medio-lateral oblique view (MLO) of a breast with an arm being tilted. After having positioned the breast on an image capturing base, the radiological technician moves a breast compression plate, which is tilted with respect to the image capturing base, toward the image capturing base. When the breast compression plate abuts against the breast and the breast is braced from below by the image capturing base, the radiological technician removes a hand from between the image capturing base and the breast compression plate, and then further moves the breast compression plate toward the image capturing base. A compression plate support mechanism turns the breast compression plate to make it substantial parallel to the image capturing base, thereby positioning the breast.
Owner:FUJIFILM CORP

Medical system

ActiveUS20140276056A1Easily carried close to patientPrevent in-hospital infectionRadiation diagnosis data transmissionRadiation diagnostic device controlComputer scienceMedical device
In a portable apparatus of a medical system, in a case where an operation unit receives an operation from a physician on the basis of the display contents of a display unit, the medical apparatus controlled as a result of the operation of the operation unit by an operator is defined by an operation control unit, and a signal in response to the operation contents received by the operation unit is transmitted from a transmission unit to the defined medical apparatus.
Owner:FUJIFILM CORP

Proton scattering analysis system

Disclosed are systems and methods for characterizing interactions or proton beams in tissues. In certain embodiments, charged particles emitted during passage of protons, such as those used for therapeutic and / or imaging purposes, can be detected at relatively large angles. In situations where beam intensity is relatively low, such as in certain imaging applications, characterization of the proton beam with charged particles can provide sufficient statistics for meaningful results while avoiding the beam itself. In situations where beam intensity is relatively high, such as in certain therapeutic applications, characterization of the proton beam with scattered primary protons and secondary protons can provide information such as differences in densities encountered by the beam as it traverses the tissue and dose deposited along the beam path. In certain situations, such beam characterizations can facilitate more accurate planning and monitoring of proton-based therapy.
Owner:LOMA LINDA UNIV MEDICAL CENT

Radiation image capturing apparatus

A radiation image capturing apparatus includes: a detecting section, a scanning drive unit, switch units, reading circuits, and a controller. The controller controls at least the scanning drive unit and the reading circuits and causes the same to execute data readout process from the radiation detection elements. The controller causes the reading circuits to periodically perform a readout operation before radiation image capturing operation in a state where each of the switch units is in an off state by applying the off voltage to all of the scanning lines from the scanning drive unit, causes the reading circuits to repeatedly execute a leaked data readout process in which the electric charges leaked from the radiation detection elements through the switch units are converted into leaked data, and detects initiation of irradiation at a point when the read-out leaked data exceeds a threshold value.
Owner:KONICA MINOLTA MEDICAL & GRAPHICS INC

Method and apparatus for emission guided radiation therapy

An apparatus comprising a radiation source, coincident positron emission detectors configured to detect coincident positron annihilation emissions originating within a coordinate system, and a controller coupled to the radiation source and the coincident positron emission detectors, the controller configured to identify coincident positron annihilation emission paths intersecting one or more volumes in the coordinate system and align the radiation source along an identified coincident positron annihilation emission path.
Owner:REFLEXION MEDICAL INC

Method and apparatus for emission guided radiation therapy

An apparatus comprising a radiation source, coincident positron emission detectors configured to detect coincident positron annihilation emissions originating within a coordinate system, and a controller coupled to the radiation source and the coincident positron emission detectors, the controller configured to identify coincident positron annihilation emission paths intersecting one or more volumes in the coordinate system and align the radiation source along an identified coincident positron annihilation emission path.
Owner:REFLEXION MEDICAL INC

Method and System of Scanner Automation for X-Ray Tube with 3D Camera

A method and apparatus for X-ray tube scanner automation using a 3D camera is disclosed. An RGBD image of a patient on a patient table is received from a 3D camera mounted on an X-ray tube. A transformation between a coordinate system of the 3D camera and a coordinate system of the patient table is calculated. A patient model is estimated from the RGBD image of the patient. The X-ray tube is automatically controlled to acquire an X-ray image of a region of interest of the patient based on the patient model.
Owner:SIEMENS HEALTHCARE GMBH

Large FOV phase contrast imaging based on detuned configuration including acquisition and reconstruction techniques

Embodiments of methods and apparatus are disclosed for obtaining a phase-contrast digital imaging system and methods for same that can include an x-ray source for radiographic imaging; a beam shaping assembly, an x-ray grating interferometer including a phase grating and an analyzer grating; and an x-ray detector; where the source grating, the phase grating, and the analyzer grating are detuned and a plurality of uncorrelated reference images are obtained for use in imaging processing with the detuned system.
Owner:CARESTREAM HEALTH INC

Positioning method and system for imaging scanning

The invention discloses a positioning method and system for imaging scanning. The method includes the steps of putting a to-be-scanned object on a patient table; obtaining a 3D image including a target scanning area of the to-be-scanned object through a 3D camera shooting device, wherein the 3D image includes depth information of the to-be-scanned object; obtaining a positioning image including the target scanning area of the to-be-scanned object through a scanning device; determining the target scanning area based on the positioning image; moving the patient table in at least one direction based on the positioning image, the 3D image and the target scanning area. By means of the positioning system, a user does not need to position a patient manually before scanning, positioning can be directly and automatically conducted after scanning of a positioning piece is completed, scanning efficiency is improved, and the positioning accuracy can be improved by means of a 3D field depth camerashooting technology.
Owner:SHANGHAI UNITED IMAGING HEALTHCARE

System and method for collimation in diagnostic imaging systems

A system and method for collimation in diagnostic imaging systems is provided. One collimation system includes a collimator for a radiation imaging detector having a plurality of adjustable segments and a plurality of collimator holes within each of the plurality of adjustable segments. The plurality of adjustable segments are configured to move independently of a detector to adjust a field of view of the collimator holes.
Owner:GENERAL ELECTRIC CO

Systems and methods for x-ray and ultrasound imaging

An imaging assembly is provided including a paddle assembly, an X-ray detection unit, an ultrasound module, and a control module. The paddle assembly includes first and second plates that are articulable with respect to each other and configured to receive and compress an object to be imaged. The X-ray detection unit is mounted proximate to at least one of the first and second plates. The ultrasound module is configured to acquire ultrasound information of the object to be imaged and includes an ultrasound transducer articulably mounted to at least one of the first and second plates. The control module is configured to position the ultrasound transducer to scan a region of interest identified using X-ray information received from the X-ray detection unit, while not scanning at least a portion of the object outside of the region of interest.
Owner:GENERAL ELECTRIC CO

Radiation imaging apparatus, radiation inspection apparatus, method for correcting signal, and computer-readable storage medium

A radiation imaging apparatus, comprising a pixel array on which a plurality of pixels are arrayed, a readout unit configured to read out a signal from the pixel array, a first unit configured to specify a portion of the signal read out by the readout unit, at which a saturated signal whose value has reached a saturation level of an output by the readout unit and a non-saturated signal whose value has not reached the saturation level are mixed, and a second unit configured to correct, based on the non-saturated signal, the saturated signal at the portion specified by the first unit.
Owner:CANON KK

Digital breast tomosynthesis reconstruction using adaptive voxel grid

Some embodiments are associated with generation of a volumetric image representing an imaged object associated with a patient. According to some embodiments, tomosynthesis projection data may be acquired. A computer processor may then automatically generate the volumetric image based on the acquired tomosynthesis projection data. Moreover, distances between voxels in the volumetric image may be spatially varied.
Owner:GENERAL ELECTRIC CO

Radiation imaging device, radiation imaging system, and method for affixing radiation conversion panel in radiation imaging device

Disclosed is a radiation imaging device configuring a radiation imaging system. Specifically disclosed is a radiation imaging device wherein external force action mechanisms are capable of applying external force to the peripheral sections of a radiation conversion panel, or applying the external force while being laminated on the radiation conversion panel, or pressing the radiation conversion panel against the inner wall of a panel containing unit, which contains the radiation conversion panel, at least in imaging when radiation is applied.
Owner:FUJIFILM CORP

Dual display ct scanner user interface

A CT user interface includes first and second displays that selectively display distinct display zones thereon. The first display includes a zone enabling the operator to create a record for each of a plurality of patients and an exam set-up and a protocol selection zone enabling the operator to select a scan protocol for performing a CT scan on a selected patient. A task list zone on the first display displays all steps and sub-steps of a CT scan for a selected patient based on the selected scan protocol, and a settings zone and a scanning zone on the first display displays and enables operator selection of a plurality of scan parameters related to the selected scan protocol. Any general user interface elements not needed for the selected scan protocol are not displayed on the first and second displays, so as to simplify the user interface for the operator.
Owner:GENERAL ELECTRIC CO

Integration between 3D maps and fluoroscopic images

A coordinate system registration module, including radiopaque elements arranged in a fixed predetermined pattern and configured, in response to the radiopaque elements generating a fluoroscopic image, to define a position of the module in a fluoroscopic coordinate system of reference. The module further includes one or more connections configured to fixedly connect the module to a magnetic field transmission pad at a predetermined location and orientation with respect to the pad, so as to characterize the position of the registration module in a magnetic coordinate system of reference defined by the magnetic field transmission pad.
Owner:BIOSENSE WEBSTER (ISRAEL) LTD

Medical device navigation system

A system for navigating a medical device is provided. In one embodiment, a magnetic field generator assembly generates a magnetic field. Position sensors on the medical device, on an imaging system and on the body generate signals indicative of the positions within the magnetic field. The generator assembly and reference sensors are arranged such that a correlation exists between them and the positions of the body and of a radiation emitter and a radiation detector of the imaging system. An electronic control unit (ECU) determines, responsive to signals generated by the sensors, a position of the medical device, a position of one of the radiation emitter and detector and a distance between the emitter and detector. Using this information, the ECU can, for example, register images from the imaging system in a coordinate system and superimpose an image of the device on the image from the imaging system.
Owner:ST JUDE MEDICAL INT HLDG SARL

Large fov phase contrast imaging based on detuned configuration including acquisition and reconstruction techniques

Embodiments of methods and apparatus are disclosed for obtaining a phase-contrast digital imaging system and methods for same that can include an x-ray source for radiographic imaging; a beam shaping assembly, an x-ray grating interferometer including a phase grating and an analyzer grating; and an x-ray detector; where the source grating, the phase grating, and the analyzer grating are detuned and a plurality of uncorrelated reference images are obtained for use in imaging processing with the detuned system.
Owner:CARESTREAM HEALTH INC

Radiation imaging apparatus, method for controlling the same, and radiation image detection device

ActiveUS20140110595A1Cost increase and complicatedIncrease and complicated operationTelevision system detailsRadiation diagnostic device controlSoft x rayImage detection
A determination section of an FPD checks external information against a determination table and determines whether detection of a rise of X-ray pulses is allowed based on an output voltage from a short-circuited pixel. The FPD detects X-ray images. The external information is transmitted from an imaging control device. The X-ray pulses are sequentially generated by an X-ray generating apparatus. A controller selects a pulse irradiation mode in a case where the detection of the rise of the X-ray pulse is allowed. If not, a successive irradiation mode is selected. In the pulse irradiation mode, the rise and the fall of the X-ray pulse are detected and timing of storage operation is synchronized with the detected timing of the rise. In the successive irradiation mode, the storage operation is performed at predetermined time intervals without the detection of the rise and the fall of the X-ray pulse.
Owner:FUJIFILM CORP

Dental imaging with photon-counting detector

An extra-oral dental imaging apparatus for obtaining an image from a patient has a radiation source; a first digital imaging sensor that provides, for each of a plurality of image pixels, at least a first digital value according to a count of received photons that exceed at least a first energy threshold; a mount that supports the radiation source and the first digital imaging sensor on opposite sides of the patient's head; a computer in signal communication with the digital imaging sensor for acquiring a first two-dimensional image from the first digital imaging sensor; and a second digital imaging sensor that is alternately switched into place by the mount and that provides image data according to received radiation.
Owner:CARESTREAM DENTAL TECH TOPCO LTD

X-ray imaging apparatus, method of controlling the same, and X-ray imaging system

An x-ray imaging apparatus and a method of controlling the x-ray imaging apparatus are provided. The x-ray imaging apparatus includes x-ray detectors configured to store detector identification data of the x-ray detectors, and a controller configured to receive the detector identification data from the x-ray detectors, and search for detector pairing data of usable x-ray detectors that match with the received detector identification data.
Owner:SAMSUNG ELECTRONICS CO LTD

Radiotherapy and imaging methods and apparatus

The present invention provides a method and an apparatus for reconstructing images from data acquired during radiotherapy. The approach is based on summing the imaging data acquired while both therapeutic and imaging source are active, with that acquired when only the therapeutic source is active. Further correction of the summed data can lead to reconstructed images of excellent quality.
Owner:ELEKTA AB

Exposure parameter adjusting method and device

The invention provides an exposure parameter adjusting method and device, wherein the method comprises the following steps of: obtaining a gray parameter of an interesting area in a pre-exposure image, wherein the pre-exposure image is obtained by pre-exposure of a detected body; according to the gray parameter and an exposure parameter when pre-exposure is carried out, obtaining the equivalent thickness of the detected body; and, according to the equivalent thickness and an expected gray parameter of the interesting area, determining an exposure parameter when formal exposure is carried out, wherein the exposure parameter comprises the tube voltage kv and the exposure dose mAs, so that the tube voltage kv and the exposure dose mAs are used in the formal exposure. By means of the exposure parameter adjusting method and device provided by the invention, the image quality when exposure is controlled by AEC can be improved.
Owner:NEUSOFT MEDICAL SYST CO LTD
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