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This page is updated frequently with new Fluoroscopy-related patent applications. Subscribe to the Fluoroscopy RSS feed to automatically get the update: related Fluoroscopy RSS feeds. RSS updates for this page: Fluoroscopy RSS RSS


Date/App# patent app List of recent Fluoroscopy-related patents
06/12/14
20140163673
 Prosthetic heart valve leaflet adapted for external imaging patent thumbnailProsthetic heart valve leaflet adapted for external imaging
Embodiments provided herein are related to prosthetic heart valve leaflets comprising one or more imageable elements that allow for visualization of the movement of the leaflets using imaging techniques, such as, but not limited to fluoroscopy, x-ray, ultrasound, and mri. When visualized using visualization techniques, the movement of the imageable element is directly related to the movement of the leaflet to which it is coupled, and therefore the movement of the leaflet may be determined..
06/12/14
20140163570
 Alignment guide with embedded features for intra-operative fluoro-checks patent thumbnailAlignment guide with embedded features for intra-operative fluoro-checks
A surgical device having an assembly used to position a patient-specific surgical instrument with a bone of a patient, the assembly having radio-opaque and radiolucent portions that provide an indication of the instrument, and corresponding implant's alignment with respect to the bone, as well as an indication that the angle of the projection (or orientation of the view) of the alignment guide to assess the placement of the alignment guide relative to the underlying bony anatomy. The radio-opaque portion may include a plurality of kirschner wires, fiducial markers, and may include a void allowing for alignment down a first length of the radio-opaque portion.
06/12/14
20140163563
 Instrument for intra-operative implant templating using fluoroscopy patent thumbnailInstrument for intra-operative implant templating using fluoroscopy
A surgical instrument having a first assembly with a first radio-opaque portion providing a profile of a first portion of an intramedullary implant or canal in a bone, and a second assembly having a second radio-opaque portion providing a profile of a second portion of the intramedullary implant or canal. The surgical instrument may also include a third radio-opaque portion providing an alignment feature to provide a fluoroscopic planar check for the surgical instrument..
06/12/14
20140161369
 Fluoroscopy apparatus, fluoroscopy system, and fluorescence-image processing method patent thumbnailFluoroscopy apparatus, fluoroscopy system, and fluorescence-image processing method
A fluoroscopy apparatus includes a preprocessing section that multiplies at least one of a fluorescence image and a reference-light image by a coefficient by which distance characteristics of fluorescence intensity and distance characteristics of return-light intensity acquired from a standard sample in advance are made directly proportional to each other to generate a correction fluorescence image and a correction reference-light image; a divided-image generating section that divides the correction fluorescence image by the correction reference-light image to generate a divided image; a threshold-setting section that sets a threshold based on a mean grayscale level of pixels in the divided image; an image-adjusting section that enhances contrast between a region with grayscale levels above the set threshold set by the threshold-setting section and a region with grayscale levels below the threshold in the divided image; and a monitor that displays the divided image with the enhanced contrast.. .
06/05/14
20140153842
 Method for reducing noise in a sequence of fluoroscopic images by temporal and spatial filtering patent thumbnailMethod for reducing noise in a sequence of fluoroscopic images by temporal and spatial filtering
In the field of medical imaging using fluoroscopy, a method for reducing noise in a sequence of fluoroscopic images acquired by an x-ray detector comprises for each image (xn) of the sequence: applying temporal filtering to the image (xn) at instant n, the temporal filtering comprising fluoroscopic noise reduction processing; applying spatial filtering to the image (yn) at instant n, the spatial filtering comprising: transforming the image (yn) acquired at the instant n from the spatial domain into the curvelet domain using a curvelet transform, each transformed image being represented by a set of coefficients, thresholding the coefficients of the image (yn) using a thresholding function, the thresholding function cancelling the coefficients below a third predetermined threshold, and preserving or adjusting the coefficients above the third predetermined threshold, transforming the image (zn) whose coefficients have been thresholded from the curvelet domain into the spatial domain using an inverse curvelet transform.. .
06/05/14
20140153700
 Fluoroscopy operator protection device patent thumbnailFluoroscopy operator protection device
A radiation protection device attaches to the c-arm of a fluoroscope and shields and collimates the x-ray beam between the x-ray source and the patient and between the patient and the image intensifier. One embodiment has a radiation shield of x-ray opaque material that surrounds the c-arm of the fluoroscopy system, the x-ray source and the image intensifier.
05/29/14
20140148694
System and method for four dimensional angiography and fluoroscopy
A method for generating time-resolved 3d medical images of a subject by imparting temporal information from a time-series of 2d medical images into 3d images of the subject. Generally speaking, this is achieved by acquiring image data using a medical imaging system, generating a time-series of 2d images of a roi from at least a portion of the acquired image data, reconstructing a 3d image substantially without temporal resolution from the acquired image data, and selectively combining the time series of 2d images with the 3d image..
05/29/14
20140148691
System and method for four dimensional angiography and fluoroscopy
A method for generating time-resolved 3d medical images of a subject by imparting temporal information from a time-series of 2d medical images into 3d images of the subject. Generally speaking, this is achieved by acquiring image data using a medical imaging system, generating a time-series of 2d images of a roi from at least a portion of the acquired image data, reconstructing a 3d image substantially without temporal resolution from the acquired image data, and selectively combining the time series of 2d images with the 3d image..
05/22/14
20140140606
 X-ray image diagnostic apparatus and method for controlling x-ray generation device patent thumbnailX-ray image diagnostic apparatus and method for controlling x-ray generation device
In order to follow the abs conditions when the movement of the object position, such as the movement of an object or the movement of an x-ray tube, occurs during fluoroscopy, an x-ray image diagnostic apparatus includes a histogram generation unit 6b that generates a histogram showing the distribution of brightness values of an x-ray image of an object; an object region detection unit 6c that detects an object region, which is a region where the object is imaged, in the x-ray image on the basis of the histogram; and an x-ray condition determination unit 2a that determines x-ray conditions defining an output of x-rays so that a brightness value representing the object region approaches a target brightness value of the object region set in advance.. .
05/08/14
20140123463
Catheter with radiopaque coil
A balloon catheter having a radiopaque coil embedded in the catheter's body corresponding to a landmark of the balloon or other location on the catheter body. The radiopaque coil can be viewed under fluoroscopy to located the balloon or other structure of the catheter.
05/01/14
20140121741
Systems and methods to place one or more leads in muscle for providing electrical stimulation to treat pain
Systems and methods are adapted to provide the relief of pain. The systems and methods make possible the percutaneous placement of one or more intramuscular leads, without the need for fluoroscopy, for providing electrical stimulation to activate a motor point innervating the muscle, to provide the therapeutic relief of pain.
04/24/14
20140114369
Navigation and positioning instruments for joint repair
An instrument for controlled delivery of a device to a target area near a defect of a bone is provided. The instrument comprises a guide frame having a plurality of device portals, each portal defining a trajectory.
04/24/14
20140114183
Computerized tomography (ct) fluoroscopy imaging system using a standard intensity ct scan with reduced intensity ct scan overlays
A method for providing ct fluoroscopy of an internal procedure site during a medical procedure so as to visualize patient anatomy and a high-contrast medical element during the procedure without subjecting the patient to unacceptable quantities of x-ray radiation, comprising: (1) taking a standard intensity ct scan of the internal procedure site; (2) taking a reduced intensity ct scan of the procedure site while the high-contrast medical element is inserted into the procedure site; (3) extracting the high-contrast medical element portion of the reduced intensity ct scan from the reduced intensity ct scan; (4) merging the high-contrast medical element portion of the reduced intensity ct scan extracted in step 3 with the standard intensity ct scan of the procedure site taken in step 1 so as to provide a composite ct scan; (5) displaying the composite ct scan; and (6) returning to either step 1 or step 2.. .
04/10/14
20140100659
System and method for performing a transiliac approach for l5-s1 discectomy and fusion
A system, device and method for performing a transiliac approach for l5-s1 interbody fusion is disclosed. The surgeon may determine the access location using a neuromonitoring probe and fluoroscopy.
04/10/14
20140100446
Fluoroscopy type four-point frame for spine surgery
The present invention relates to a fluoroscopy type four-point frame for spine surgery comprising an upper support plate, two pairs of slide seats, a pair of slide rails and two pairs of support cushions. The left and right side defined at the front and rear of the upper support plate are respectively provided with a pair of the slide seats connected through the slide rail, thereby allowing each of the slide seats to slide towards left and right at the corresponding edge of the upper support plate.
04/03/14
20140094857
Cam lock pedicle screw
The present invention is directed to a pedicle screw fixation system which can be made for either posterior cervical, thoracic, lumbar spine, or elsewhere. With this type of system a surgeon can implant a pedicle screw system utilizing the same instrument set for an open or closed procedure.
04/03/14
20140093032
Configuration and method for tomosynthetic fluoroscopy
A configuration and an associated operating method for tomosynthetic fluoroscopy utilize an x-ray emitter and with an x-ray detector. The configuration further contains a mounting device, which is rotatably mounted about a rotational axis and about which the x-ray emitter is arranged such that the optical axis of the x-ray emitter is directed to the x-ray detector and that, in the case of a rotation of the mounting device, the focus of the x-ray emitter describes a circular path.
02/27/14
20140058494
X-ray identification for active implantable medical device
An active implantable medical device is disclosed herein having a radio-opaque marker. The radio-opaque marker can be formed within an exterior wall of the device or within recesses on the outside of the exterior wall.
02/27/14
20140053333
Patient couch
A patient couch for a medical diagnosis and/or treatment device includes a metal-free fluoroscopy section and at least two couch sections that are connected to each other in an articulated manner and may be pivoted relative to each other using a motor-driven adjustment mechanism. The adjustment mechanism is arranged outside of the metal-free fluoroscopy section..
02/20/14
20140049626
Fluoroscopy apparatus and image display method therefor
Provided is a fluoroscopy apparatus including illuminating portions that radiate excitation light and illumination light onto an imaging subject; a fluorescence imaging portion that acquires a fluorescence image from fluorescence emitted at the imaging subject due to the irradiation with the excitation light; a return-light imaging portion that acquires a return-light image from return light returning from the imaging subject due to the irradiation with the illumination light; a display portion that displays the acquired fluorescence image and/or the return-light image; an identifying portion that identifies a region-of-interest in the fluorescence image; an image switching portion that switches the display on the display portion so that only the return-light image is displayed thereon when the region-of-interest r is not identified, and so that the return-light image and the fluorescence image are juxtaposed and displayed on the display portion when the region-of-interest has been identified.. .
02/13/14
20140046335
Device for delivering viscous material
Methods and devices are described for delivering a viscous material to a surgical site in a patient while keeping the clinician outside the fluoroscopy field.. .
02/06/14
20140039398
Needle and guidewire holder
Device and method for puncturing blood vessels while using fluoroscopy. The disclosed device enables improved needle orientation control and avoids direct exposure of the clinician's hand to x-ray during the puncturing procedure..
02/06/14
20140039298
Apparatus for insertion of a medical device within a body during a medical imaging process and devices and methods related thereto
A device, system, and method for entering a medical device such as a needle into the body inside a medical imager such as a mri scanner, ct, x-ray fluoroscopy, and ultrasound imaging, from within a body cavity (such as the rectum, vagina, or laparoscopically accessed cavity). A three degree-of-freedom mechanical device translates and rotates inside the cavity and enters a needle into the body, and steers the needle to a target point selected by the user.
02/06/14
20140037179
Fluoroscopy apparatus and fluoroscopy system
Provided is a fluoroscopy apparatus including a light source that irradiates an observation target with reference light and excitation light; a fluorescence-image generating unit that captures fluorescence emitted from the observation target x irradiated with the excitation light to generate a fluorescence image; a reference-image generating unit that captures return light returning from the observation target irradiated with the reference light to generate a reference image; an image-combining unit that superimposes the fluorescence image on the reference image to generate a combined image; a determining unit that determines whether there is a position with a luminance at or below a predetermined threshold in the reference image; and a notifying unit that, if the determining unit determines that there is a position with a luminance at or below the predetermined threshold, provides notification thereof.. .
01/30/14
20140029720
Movable shield for reducing radiation exposure of medical personnel
A movable device holds a radiation protection drape for reducing exposure and protecting medical personnel from hazardous x-ray radiation scattered by the patient during fluoroscopy. The device enables positioning an x-ray opaque drape such that it covers the patient in an anatomically and procedurally compatible ways that reduces significantly the scattered radiation towards the operators.
01/30/14
20140028824
Fluoroscopy apparatus
Provided is a fluoroscopy apparatus including a fluorescence-image generating portion that generates a fluorescence image; an identifying portion that identifies a position of a high-luminance region in the fluorescence image; a storage portion that stores the position of the high-luminance region; a detecting portion that detects an amount of change in a physical quantity, which can possibly act as a cause of changes in a property of the high-luminance region, starting from a time at which the position of the high-luminance region is identified by the identifying portion; a confidence-level calculating portion that calculates a confidence level of the property of the high-luminance region based on the detected amount of change; and a display-image generating portion that generates a display image in which the display mode at the position of the high-luminance region is set in accordance with the confidence level.. .
01/23/14
20140024948
Fluoroscopy apparatus
Provided is a fluoroscopy apparatus including a fluorescence imaging portion that acquires a fluorescence image of biological tissue; a return-light imaging portion that acquires a return-light image of the biological tissue; a fluorescence-region identifying portion that identifies a fluorescence region in the fluorescence image by using a processing condition specified from among a plurality of processing conditions; a superimposed-image generating portion that generates a superimposed image by superimposing the identified fluorescence region on a corresponding position in the return-light image; a treatment-information acquisition portion that acquires treatment-details information indicating the specifics of treatment to be applied to the biological tissue; and an image switching portion that specifies the processing condition to be used by the fluorescence-region identifying portion in accordance with the treatment-details information acquired by the treatment-information acquisition portion.. .
01/16/14
20140018604
Moving object tracking system for radiotherapy
In the case where x-ray tubes and x-ray detectors have fixed directions (directions of irradiation and directions of detecting planes), x-ray fluoroscopy can be carried out from various directions by providing two u-shaped tracks for the x-ray tubes and the x-ray detectors, each having two straight tracks arranged opposite each other, and a curved track connected thereto. An increased number of directions for x-ray fluoroscopy can be secured by arranging a u-shaped track rail for the x-ray tubes and a u-shaped track rail for the x-ray detectors opposite each other when seen in plane view..
01/16/14
20140016744
Method for moving x-ray screening images in a digital radioscopy within a digital laminography process and use of a multiaxial imanipulator system for implementing such a method
A method is provided for feeding-in x-ray fluoroscopy images of an object in the context of a digital laminography technique, in which the x-ray fluoroscopy images are not fed in at 360°, but a feed-in of first x-ray fluoroscopy images takes place at 180° and, after tilting the object, a feed-in of second x-ray fluoroscopy images follows in the same angular range of 180°. The second x-ray fluoroscopy images, after suitable reflection onto the complementary points, are set to the first x-ray fluoroscopy images and, from the resultant complete data set, a calculation is carried out in the context of the digital laminography technique.
12/26/13
20130343519
Portable dual-energy radiographic x-ray perihpheral bone density and imaging systems and methods
Devices, tools, systems and methods for x-ray bone density measurement and imaging for radiography, fluoroscopy and related procedures. Portable, efficient peripheral bone density measurement and/or high resolution imaging and/or small field digital radiography of bone and other tissue, including tissue in the peripheral skeletal system, such as the arm, forearm, leg, hand and/or foot..
12/26/13
20130343511
Quantitative two-dimensional fluoroscopy via computed tomography
A system includes obtaining of a reference projection image of a target volume at an isocenter of a computed tomography scanner; obtaining of a plurality of two-dimensional fluoroscopic images by the computed tomography scanner of at least a portion of the target volume at the isocenter of the computed tomography scanner; displaying the reference projection image and the plurality of two-dimensional fluoroscopic images in a combined view; measuring a two-dimensional contour of a projection of a movement of the target volume in the combined view; and determining a true contour of the movement in a plane containing a point-of-interest within the target volume based on the two-dimensional contour of the projection of the movement.. .
12/05/13
20130320246
Radiation shield with disposable sterile drape for protecting the hands and arms during interventional cardiovascular fluoroscopy
A radiation blocking shied for the hands of a clinical operator of fluoroscopic equipment during extended surgery or diagnostic testing.. .
11/21/13
20130308844
Medical imaging device for providing an image representation supporting the accurate positioning of an invention device in vessel intervention procedures
A medical imaging device and a method for providing an image representation supporting inaccurate positioning of an intervention device in a vessel intervention procedure is proposed. Therein, an anatomy representation (ar) of a vessel region of interest and at least one angiogram x-ray image (ra) and a live fluoroscopy x-ray image (li) are acquired.
10/24/13
20130279780
Method and system for model based fusion on pre-operative computed tomography and intra-operative fluoroscopy using transesophageal echocardiography
A method and system for model-based fusion of pre-operative image data and intra-operative fluoroscopic images is disclosed. A fluoroscopic image and an ultrasound image are received.
10/17/13
20130272504
X-ray dose reduction by controlled shutter speed
A fast moving x-ray shutter has four independently controlled blades defining a region of interest (roi). The roi area receives the normal x-ray dose and is exposed at the machine's x-ray pulse frame rate.
09/19/13
20130243153
Automatically determining 3d catheter location and orientation using 2d fluoroscopy only
A method for automatically determining the 3d position and orientation of a radio-opaque medical object in a living body using single-plane fluoroscopy comprising capturing a stream of digitized 2d images from a single-plane fluoroscope (10), detecting the image of the medical object in a subset of the digital 2d images, applying pixel-level geometric calculations to measure the medical-object image, applying conical projection and radial elongation corrections (31) to the image measurements, and calculating the 3d position and orientation of the medical object from the corrected 2d image measurements.. .
09/12/13
20130237963
Guidewire with integral radiopque markers
Embodiments hereof relate to a guidewire formed from an elongated shaft, at least a portion of the shaft having an outer layer, a plurality of channels formed through the outer layer, and an inner core. The outer layer is formed from a material non susceptible to erosion by an erosion agent and the inner core is formed from a radiopaque material susceptible to erosion by the erosion agent.
09/05/13
20130230149
Video and accessory apparatus for a videofluoroscopy unit
A videofluoroscopy accessory device adapted to securely and removably attach to an x-ray head of a fluoroscopy system or device. The videofluoroscopy accessory device on the current invention provides a platform for enhancing and supplementing the surgical environment with additional accessories.
08/08/13
20130201320
Fluoroscopy apparatus, fluoroscopy system, and fluorescence-image processing method
A fluoroscopy apparatus including: an illumination unit having a light source radiating illumination light and excitation light onto an observation target, a fluorescence-imaging unit acquiring a fluorescence image by imaging fluorescence generated at the observation target by the excitation light, a white-light-imaging unit acquiring a reference image by imaging light returning from the observation target by the illumination light, and an image-correction unit obtaining a correction fluorescence image by raising the luminance value of the fluorescence image to the power of a reciprocal of a first and second exponent obtained by a power approximation of a distance characteristic of luminance versus observation distance, for the fluorescence image, and that obtains a corrected fluorescence image by dividing the correction fluorescence image by the correction reference image.. .
08/08/13
20130200275
Fluoroscopy apparatus, fluoroscopy system, and fluorescence-image processing method
A fluoroscopy apparatus including: an illumination unit having a light source radiating illumination light and excitation light onto an observation target, a fluorescence-imaging unit acquiring a fluorescence image by imaging fluorescence generated at the observation target by the excitation light, a white-light-imaging unit acquiring a reference image by imaging light returning from the observation target by the illumination light, and an image-correction unit obtaining a correction fluorescence image by raising the luminance value of the fluorescence image to the power of a reciprocal of a first and second exponent obtained by a power approximation of a distance characteristic of luminance versus observation distance, for the fluorescence image, and that obtains a corrected fluorescence image by dividing the correction fluorescence image by the correction reference image.. .
08/08/13
20130200274
Fluoroscopy apparatus, fluoroscopy system, and fluorescence-image processing method
A fluoroscopy apparatus including: an illumination unit having a light source radiating illumination light and excitation light onto an observation target, a fluorescence-imaging unit acquiring a fluorescence image by imaging fluorescence generated at the observation target by the excitation light, a white-light-imaging unit acquiring a reference image by imaging light returning from the observation target by the illumination light, and an image-correction unit obtaining a correction fluorescence image by raising the luminance value of the fluorescence image to the power of a reciprocal of a first and second exponent obtained by a power approximation of a distance characteristic of luminance versus observation distance, for the fluorescence image, and that obtains a corrected fluorescence image by dividing the correction fluorescence image by the correction reference image.. .
08/08/13
20130200273
Fluoroscopy apparatus, fluoroscopy system, and fluorescence-image processing method
A fluoroscopy apparatus including: an illumination unit having a light source radiating illumination light and excitation light onto an observation target, a fluorescence-imaging unit acquiring a fluorescence image by imaging fluorescence generated at the observation target by the excitation light, a white-light-imaging unit acquiring a reference image by imaging light returning from the observation target by the illumination light, and an image-correction unit obtaining a correction fluorescence image by raising the luminance value of the fluorescence image to the power of a reciprocal of a first and second exponent obtained by a power approximation of a distance characteristic of luminance versus observation distance, for the fluorescence image, and that obtains a corrected fluorescence image by dividing the correction fluorescence image by the correction reference image.. .
08/01/13
20130194409
Multi-photon fluoroscopy attachment module for a surgical microscope
The present invention relates to an attachment module (100) for a surgical microscope (10), the attachment module (100) being insertable into a main optical path between an objective (11) of the surgical microscope and an object (o) being observed, and including: a multi-photon fluoroscope (110) including a light source (111) for emitting excitation light, a scanning device (112) for directing the excitation light onto the object (o), and a detector (113) for detecting fluorescent light emitted from the object (o); and input coupling optics (120) for reflecting the excitation light from the scanning device onto the object (o).. .
07/04/13
20130172737
Absorbable sponge with contrasting agent
An absorbable sponge containing a contrasting agent (e.g, radiopaque agent) that can be introduced to a biopsy tract or other puncture wound site is provided. The contrasting agent permits identification of the site by fluoroscopy or other imaging techniques..
06/20/13
20130158401
Ultrasonic percutaneous enteral feeding tube
Among other things, a gastrostomy tube including a feeding tube that spans between an outer retention device and an inner retention device is disclosed. Embodiments of the inner retention device include an ultrasonic marker positioned within the inner retention device.
06/20/13
20130156154
X-ray diagnosis apparatus and control method thereof
An x-ray diagnosis apparatus includes a radiography image generating unit, a fluoroscopy image generating unit, a display control unit and an irradiation field changing unit. The radiography image generating unit controls an x-ray irradiation device, an x-ray detection device, a retainer, and a bed system, and generates a radiography image by using a radiography irradiation field.
06/13/13
20130151218
Treatment planning simulation and verification system
A treatment planning, simulation, and verification system is described. According to one embodiment, a treatment plan and a fluoroscopy data image of a treatment volume are received and the treatment plan is automatically adjusted based on the movement of the fluoroscopy data image.
05/16/13
20130123613
Magnetic particle heating system and method for occlusion of the fallopian tube
In a magnetic particle heating method for occlusion of the fallopian tubes, biocompatible magnetic particles are delivered transcervically to the entrance of the fallopian tube. Placement of the particles (e.g., magnetic nanoparticles) in the fallopian tube is confirmed, and a coil is positioned about or proximate the patient's abdomen.
05/09/13
20130116508
Fluoroscopy apparatus
Provided is a fluoroscopy apparatus including an illumination unit that radiates illumination light and excitation light onto a subject; a fluorescence imaging unit that acquires a fluorescence image by imaging fluorescence generated at the subject; a return-light imaging unit that acquires a return-light image by imaging return light returned from the subject; a fluorescence-image storage unit that stores the fluorescence image; a treatment input unit to which signals for starting and ending treatment performed on the subject are input; a comparison-image generating unit that generates a comparison image that enables comparison of the fluorescence image stored in the fluorescence-image storage unit when the signal for starting the treatment is input to the treatment input unit and the fluorescence image acquired when the signal for ending the treatment is input; and a display unit that displays the comparison image.. .
05/02/13
20130110211
Paddle lead with indicia and related methods of use
An implantable paddle lead includes a paddle body, configured and arranged for implantation in a patient's body, having a first face and a second face opposing the first face. The paddle lead also includes a plurality of electrodes disposed on the paddle body and configured and arranged for stimulating patient tissue adjacent the paddle body.
04/25/13
20130102926
Fluoroscopy-independent, endovascular aortic occlusion system
A system for deploying and selectively inflating a thoracic aortic balloon at a desired location within the thoracic aorta for resuscitative aortic occlusion, inferior to the left subclavian artery, without the aid of fluoroscopy is described. Using ct imaging data, a distance between readily identifiable and consistently located external landmarks of torso extent is measured.
04/25/13
20130101196
Navigating an interventional device
The present invention relates to navigating an interventional device. In particular, the invention relates to a system for navigating an interventional device within a tubular structure of an object, a method for navigating an interventional device within a tubular structure of an object as well as a computer program element and a computer-readable medium.
04/18/13
20130096428
Access system for femoral vasculature catheterization and related method
An access system and method for obtaining access to the interior vascular structures or other regions or collections of fluid or fluid-filled cavities inside the body. The system and method provides for injection of contrast agents (to confirm ideal position or condition), the passage of guide wires, and the eventual catheterization of the heart and other parts of the body via the pathway established through the puncture of a femoral artery.
04/18/13
20130094745
Non-rigid 2d/3d registration of coronary artery models with live fluoroscopy images
A method for non-rigid registration of digital 3d coronary artery models with 2d fluoroscopic images during a cardiac intervention includes providing a digitized 3d centerline representation of a coronary artery tree that comprises a set of s segments composed of qs 3d control points, globally aligning the 3d centerline to at least two 2d fluoroscopic images, and non-rigidly registering the 3d centerline to the at least two 2d fluoroscopic images by minimizing an energy functional that includes a summation of square differences between reconstructed centerline points and registered centerline points, a summation of squared 3d registration vectors, a summation of squared derivative 3d registration vectors, and a myocardial branch energy. The non-rigid registration of the 3d centerline is represented as a set of 3d translation vectors rs,q that are applied to corresponding centerline points xs,q in a coordinate system of the 3d centerline..
04/04/13
20130085416
In-vivo calibration of contact force-sensing catheters using auto zero zones
A method for the in vivo re-calibration of a force sensing probe such as an electrophysiology catheter provides for the generation of an auto zero zone. The distal tip of the catheter or other probe is placed in a body cavity within the patient.
04/04/13
20130083980
Localization and tracking of cryo-balloon during interventional fluoroscopy imaging
A method for the detection of a balloon catheter within a fluoroscopic image, including: removing noise from a fluoroscopic image; detecting edges of a balloon catheter in the fluoroscopic image, wherein the detected edges include subsets of connected edges; extracting an edge subset from the subsets of connected edges; fitting a model to the extracted edge subset; removing outliers of the extracted edge subset based on the fitting of the model; adding the extracted edge subset without the outlier to a data set; repeating the extracting, fitting, removing and adding steps for the remainder of the subsets of connected edges; and fitting the model to the data set, wherein the data set is indicative of the balloon catheter.. .
03/21/13
20130072788
Method and system for tracking catheters in 2d x-ray fluoroscopy using a graphics processing unit
A method and system for detecting and tracking multiple catheters in a fluoroscopic image sequence in an integrated central processing unit and graphics processing unit framework is disclosed. A catheter electrode model is initialized in a first frame of the fluoroscopic image sequence.
02/14/13
20130039562
Image processing device and fluoroscopy device
Employed is an image processing device including a fluorescence-image generating unit that images fluorescence generated at a subject irradiated with excitation light and generates a fluorescence image; a white-light-image generating unit that images white light returned from the subject irradiated with illumination light and generates a white-light image; a memory that converts the white-light image to a plurality of color signals constituting a color space; an image computing unit that corrects the plurality of color signals converted by the memory using at least one color signal among the plurality of the color signals and the fluorescence image; an image computing unit that generates a corrected image from the plurality of color signals corrected by the image computing unit; and an image combining unit that combines the fluorescence image generated by the fluorescence-image generating unit and the corrected image generated by the image computing unit.. .
01/31/13
20130028501
Fluoroscopy device
A fluoroscopy device includes a light source that irradiates an observation site with excitation light and white light; a fluorescence-image generating section that acquires a fluorescence image by capturing fluorescence generated in the observation site irradiated with the excitation light; a reference-image generating section that acquires a reference image by capturing return light returning from the observation site irradiated with the white light; an observation-condition determining section that determines the observation conditions of the observation site on the basis of the reference image acquired by the reference-image generating section; a preprocessing section that corrects gradation values of the reference image on the basis of the observation conditions of the observation site; and a fluorescence-image correcting section that generates a corrected fluorescence image by dividing the fluorescence image acquired by the fluorescence-image generating section by the reference image whose gradation values have been corrected by the preprocessing section.. .
01/31/13
20130026390
Fluoroscopy apparatus and fluorescence image processing method
Provided is a fluoroscopy apparatus comprising a white-light-image generating section that generates a white-light image of observation target, a fluorescence-image generating section that generates a fluorescence image of the observation target, a fluorescence-image correcting section that normalizes the fluorescence image with the white-light image, a displacement calculating section that calculates the displacement of the observation target from a plurality of white-light images generated at time intervals, a region-size calculating section that calculates the size of a region having a fluorescence intensity higher than or equal to a predetermined threshold value from the fluorescence image, and a control unit that controls the fluorescence-image correcting section so that, when the displacement of the observation target relative to the size of the region is larger than or equal to a predetermined proportion, normalization of the fluorescence image is stopped.. .
01/31/13
20130025605
Fluoroscopy c-arm drape clip, drape clip assembly and method of clipping a sterile drape to a fluoroscopy c-arm
A fluoroscopy c-arm drape clip for attaching a sterile drape to a c-arm of a fluoroscopy c-arm imaging unit and method of providing a sterile outer surface on a c-arm of a fluoroscopy c-arm imaging unit is provided. The drape clip includes a generally u-shaped band having a pair of legs and an arm.
01/10/13
20130012813
Image processing apparatus and x-ray diagnostic apparatus
According to one embodiment, an image processing apparatus includes a storage unit, an image generation unit, and a display control unit. The storage unit stores the first x-ray fluoroscopy image with a cardiac tissue of an object being contrast-enhanced by a contrast medium and the second x-ray fluoroscopy image with a cardiac lumen of the object being contrast-enhanced by the contrast medium.
01/03/13
20130003922
Fluoroscopy apparatus and fluoroscopy method
Provided is a fluoroscopy apparatus that includes an illumination section including a light source for radiating illumination light and excitation light onto a subject; a fluoroscopic image acquisition section acquiring a fluoroscopic image of fluorescence generated in the subject; a return-light image acquisition section acquiring a reference image of return light returning from the subject; a distance-information acquisition section acquiring information about a distance between the return-light image acquisition section and the subject; and an image correction section correcting the fluoroscopic image by using the reference image. The image correction section sets a correction coefficient based on the distance information, generates a correction reference image or a correction fluoroscopic image by performing a power calculation for light intensity information of the reference image and/or the fluoroscopic image by using the correction coefficient as an index, and divides the correction fluoroscopic image by the correction reference image..


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Fluoroscopy topics: Fluoroscopy, Fluorescence, Image Processing, Ultrasound, Fluoroscope, Radiopaque, Computed Tomography, Ultrasound Image, Transesophageal Echocardiography, Echocardiography, Esophageal, Physiologic, Tomography, Image Acquisition, Frame Rate

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