68results about "Foreign body detection" patented technology

A system for confirming placement of a biopsy tool in a target comprising: a catheter configured to receive a biopsy tool; a navigation component configured to track a position of the catheter navigated into a luminal network; and a processor and one or more storage devices having stored thereon instructions, which when executed by the processor, cause the processor to: receive a first plurality of fluoroscopic images; generate a first fluoroscopic three-dimensional (3D) reconstruction from the first plurality of fluoroscopic images; present a first slice of the first fluoroscopic 3D reconstruction depicting the catheter in relation to the target, wherein the target is visible in the first slice of the first fluoroscopic 3D reconstruction; receive a second plurality of fluoroscopic images; generate a second fluoroscopic three-dimensional reconstruction from the second plurality of fluoroscopic images; present a second slice of the second fluoroscopic 3D reconstruction depicting the catheter; receive an indication of a location of a tip of the catheter in the second slice of the second fluoroscopic 3D reconstruction; present a third slice of the second fluoroscopic 3D reconstruction depicting a target location; receive an indication of the location of the target in the third slice of the second fluoroscopic 3D reconstruction; and update a relative position of the target and the catheter in a 3D model of the luminal network.

A system (100) for determining a suitability of positions along a lumen (110) as end point locations for a stent, includes one or more processors (120) configured to: receive (S110), from an intraluminal imaging device (130), a temporal sequence of intraluminal images (1401..n) representing positions along the lumen (110), including at least a first intraluminal image (140i⊂1..n); and identify (S120), whether or not the first intraluminal image (140i⊂1..n) represents a suitable end point location for the stent.

Two-dimensional X-ray images with enhanced tumor contrast are generated from computed tomography (CT) image data that were previously acquired from a subject. A simulated X-ray image is generated from the CT image data, where the simulated X-ray image depicts tissues that are non-essential for a radiotherapy plan. An X-ray image of the subject is acquired with an on-board imaging system of a radiotherapy system. A subtraction X-ray image is then generated by subtracting the simulated X-ray image from the X-ray image. The subtraction X-ray image has improved visualization of tumor tissues relative to the X-ray image by way of removing the non-essential tissues from the X-ray image.

A medical system includes a flexible elongate instrument including: an imaging device configured to capture at least one real-time image of anatomy within a patient anatomy; and at least one position sensor for determining a position of a distal tip of the instrument. The system also includes a processor configured to display: a three-dimensional patient computer model of the patient anatomy; over the three-dimensional patient computer model, a representation of a view angle of the instrument. The representation of the view angle is displayed so as to appear to project from an endoscopic model of the distal tip of the instrument. A pointing direction of the representation of the view angle is aligned with a longitudinal axis of the instrument. The captured real-time image and an arrow providing guidance to a target site in the patient anatomy are also displayed.

In one embodiment, an X-ray diagnostic apparatus can communicate with a controller configured to operate a catheter robot capable of moving an inserted device within the object and comprises a display and processing circuitry. The display is configured to display at least one fluoroscopic image of an object. The processing circuitry is configured to receive a control signal indicating a content of an operation on the catheter robot from the controller, acquire a plurality of fluoroscopic images of the object by irradiating the object with X-rays, control X-ray irradiation to the object, cause the display to display the plurality of fluoroscopic images to be sequentially acquired when the X-ray irradiation is performed, generate a plurality of reproduced images based on the plurality of fluoroscopic images acquired before a stop of the X-ray irradiation and cause the display to display the plurality of reproduced images when the X-ray irradiation is stopped.

The present invention provides a system and method for tracking the movement of a catheter within the airways of the lungs. [Solution] The deformable model of the lung represents the airways of the lung as airway segments joined at branching points. Deformation of the lung model is performed using modifications to the angles and / or positions of the airway segments relative to each other. The initial model may be generated, for example, based on segmentation of CT images. The baseline deformable registration of the initial model to the patient's lung shape at the start of the procedure may be established from catheter position measurements along several different paths. Optionally, the baseline registration is dynamic according to the respiratory phase. Compared to the baseline registration, real-time changes in lung shape may be modeled by using position sensors distributed along the catheter body and using further measurements acquired using the catheter as the catheter navigates to the target.

A system and method for planning surgical procedure including a treatment zone setting view presenting at least one slice of a 3D reconstruction generated from CT image data including a target. The treatment zone setting view presenting a treatment zone marker defining a location and a size of a treatment zone and configured to adjust the treatment zone marker in response to a received user input. The system and method further including a volumetric view presenting a 3D volume derived from the 3D reconstruction and a 3D representation of the treatment zone marker relative to structures depicted in the 3D volume.

A computer-implemented system, comprising: at least one nontransitory processor-readable storage medium that stores at least one of processor-executable instructions or data; and at least one processor communicably coupled to at least one nontransitory processor-readable storage medium, wherein at least one processor: reads (811) the set of images, each comprising an image of a registration grid (181) comprising an array of markers (181B); detects (812) the markers on each of the images by using a marker detection convolutional neural network (CNN); filters (821) the detection results to remove false positives; and determines (831) the 3D location and 3D orientation of the registration grid (181) based on the detected markers (181B).

The method includes receiving a series of medical images showing a region of interest including a plurality of targets, captured by the medical imaging device while the medical imaging device moves by rotation; determining a pose of each of a subset of the series of medical images in which the targets are visible; estimating a trajectory of the medical imaging device based on the determined poses of the subset and a trajectory constraint of the imaging device; determining a pose of one of the medical images in which the targets are not visible by extrapolation based on the assumption that the movement of the medical imaging device continues; and determining a stereoscopic reconstruction of the region of interest based on at least some of the poses of the subset and the pose of one of the medical images in which the targets are not visible.

A system performs receiving the X-ray image depicting the anatomy and a first plurality of virtual X-ray images, wherein the virtual X-ray images of the first plurality of X-ray images are generated as projection images of a 3D data set of the anatomy with a wide distribution of imaging directions, identifying image features in the X-ray image, identifying image features in the virtual X-ray images of the first plurality of virtual X-ray images, and performing a 2D-2D matching of the image features of the virtual X-ray images of the first plurality of virtual X-ray images with the image features of the X-ray image by applying at least one of image rotation, image zoom, translating within the image plane, for determining one of the virtual X-ray images of the first plurality of X-ray images which provides a best match of the image features with the image features in the X-ray image.

Methods of respiration compensation including detecting a position of a catheter proximate a target within a patient, performing a local registration to update a displayed relative position and orientation of the catheter and the target in a three-dimensional model, detecting movement of a plurality of sensors, determining a respiration waveform from the detected movement of the plurality of sensors, and indicating on a user-interface a period during which advancement of a biopsy or therapy tool from the catheter is most likely to intersect the target, wherein the period corresponds to a portion of the respiration waveform during which the movement of the plurality of sensors is within a desired range.

Various methods and systems are provided for reducing an amount of time and resources spent on reviewing digital breast tomosynthesis (DBT) images and corresponding synthetic 2D images. In one example, a method includes receiving a plurality of tomosynthesis data studies, each study comprising a first image set of synthetic two-dimensional (S2D) images, a second image set of slab images, and a third image set of plane images. For each study of the plurality of tomosynthesis data studies, a minimum dataset to be reviewed by a radiologist is determined based on an analysis of the tomosynthesis data by an AI-based system, and the minimum dataset is displayed on a display device rather than the plurality of tomosynthesis data studies.

Disclosed are a method, device, and system for X-ray CT contrast imaging using magnetic nanoparticles. The method includes: rotating a target object containing magnetic nanoparticles as contrast agent for one circle relative to X-rays, recording multiple consecutive transmission projection images of the target object at all angles; for multiple transmission projection images at each angle, after conducting image post-processing operations, performing inverse projection transform on magnetic nanoparticle imaging projection images at all angles to obtain a tomographic imaging result. The image post-processing operation includes: time-frequency transform: converting the third dimension of the three-dimensional time domain matrix to frequency domain to obtain a three-dimensional frequency domain matrix; feature extraction: selecting a two-dimensional matrix with frequency of kf along the third dimension of the three-dimensional frequency domain image matrix; k is a positive integer; f is the frequency of the excitation magnetic field.

A surgery assistance device includes an angiographic image acquisition unit that sets a time interval corresponding to a pulsation cycle of a heart as predetermined intervals and sequentially acquires an angiographic image representing a target blood vessel into which a medical device is inserted at the predetermined intervals, and an image correction unit that sequentially corrects the angiographic image sequentially acquired by the angiographic image acquisition unit, and that generates a corrected angiographic image by correcting the angiographic image to be corrected in such a manner that a position of a specific portion of the medical device included in the angiographic image to be corrected approaches a position of the specific portion of the medical device included in the angiographic image acquired temporally earlier than the angiographic image to be corrected.

A breast support platform for an x-ray imaging system includes a housing having a compression plate and a front wall, and a heating system disposed at least partially within the housing. The heating system is configured to heat at least a portion of the compression plate, at least a portion of the front wall, or at least a portion of the compression plate and the front wall. In an example, the heating system includes a transparent conducting film coupled to an inner surface of the housing. In another example, the heating system includes a blower disposed at least partially within the housing, and the blower is configured to channel hot air across an inner surface of the housing.

A system includes a processor circuit that receives intravascular imaging data from an intravascular imaging catheter, an x-ray image from an x-ray imaging device, and intravascular pressure data from an intravascular pressure-sensing guidewire. The processor circuit correlates the intravascular imaging data and the intravascular pressure data to locations along a body lumen shown in the x-ray image. The processor circuit generates a longitudinal view of the body lumen based on the intravascular imaging data and outputs a screen display including the longitudinal view of the body lumen with an overlaid graphical representation corresponding to the intravascular pressure measurements.

A system is provided configured for a determination of a position of an anatomy in a 3D coordinate system, based on one X-ray image. The system performs the steps of receiving the X-ray image depicting the anatomy, receiving a first plurality of virtual X-ray images, wherein the virtual X-ray images of the first plurality of X-ray images are generated as projection images of a 3D data set of the anatomy with a wide distribution of different imaging directions, identifying image features in the received X-ray image, identifying image features in the virtual X-ray images of the first plurality of virtual X-ray images, and performing a 2D-2D matching of the image features of the virtual X-ray images of the first plurality of virtual X-ray images with the image features of the received X-ray image by applying at least one out of the group consisting of image rotation, image zoom, translating within the image plane, for determining one of the virtual X-ray images of the first plurality of X-ray images which provides a best match of the image features with the image features in the received X-ray image, wherein the determined virtual X-ray image of the first plurality of virtual X-ray images is utilized for determining an approximation of the position of the anatomy.

Laser-based alignment support device (1) for assisting the alignment of an instrument (2) for puncturing an object (3), in particular for an X-ray imaging system (4), comprising: - a first line laser (5) for generating a first laser beam in a first laser plane (7), which is configured to generate a first laser line (14) on a first surface line (9) of the instrument (2) in a first section plane (11) of the instrument (2) when the first section plane (11) coincides with the first laser plane (7), and - a second line laser (6) for generating a second laser beam in a second laser plane (8) intersecting the first laser plane (7), characterized by: - ​​a point-like shielding element (16) of the second line laser (6) for generating a shadow line (17) in the second laser plane (8), wherein the second line laser (6) is configuredto map a shadow point (18) of the shadow line (17) onto a second surface line (10) of the instrument (2) in a second cutting plane (12) of the instrument (2) when the first cutting plane (11) and the second cutting plane (12) are aligned.

A medical system comprises a display system, an elongate device, an imaging probe configured to extend within the elongate device, and a control system communicatively coupled to the display system. The control system is configured to display a graphical user interface via the display system. The graphical user interface includes a virtual navigation view and a fluoroscopic view. The control system is further configured to: display an image of the elongate device in the virtual navigation view; determine a position of an imaging probe marker in the virtual navigation view based on a position of the imaging probe displayed in the fluoroscopic view; determine a plane of orientation of the imaging probe marker in the virtual navigation view based on an orientation of the imaging probe displayed in the fluoroscopic view; and determine an orientation indicator for the imaging probe marker in the virtual navigation view.

A method and system for reducing divergence between computed tomography images and a patient using three-dimensional reconstructions. The method utilizes cone beam imaging or three-dimensional fluoroscopy to supplement or supplant pre-operative computed tomography imaging.

A biopsy device, including: a hollow sampling portion comprising an elongated body having a long axis, a proximal end, a distal end and an inner lumen within said body positioned along the long axis; wherein the sampling portion distal end comprises a distal opening, shaped and sized to allow entry of tissue into the inner lumen when the hollow sampling portion is axially advanced into body tissue; at least one movable tissue manipulator extending from a wall of said sampling portion body into the inner lumen and towards the sampling portion proximal end; wherein the at least one tissue manipulator is configured to move outwardly towards the wall, and inwardly towards the inner lumen.

Example systems, devices, and techniques are described for lesion characterization. An example medical system includes one or more memories configured to store one or more memories configured to store fluoroscopy imaging data of a patient and processing circuitry communicatively coupled to the memory. The processing circuitry is configured to obtain the fluoroscopy imaging data, the fluoroscopy imaging data including imaging data of one or more calibration artifacts. The processing circuitry is configured to execute one or more machine learning models to determine, based on the imaging data of the one or more calibration artifacts, a calibration factor. The processing circuitry is configured to apply the calibration factor to the fluoroscopy imaging data and output a representation of the fluoroscopy imaging data based on the application of the calibration factor to the fluoroscopy imaging data.

A feature for supporting a healthcare worker during a catheter examination or medical treatment of a blood vessel so as to facilitate concentration on work in an area of attention and provide support in making a determination regarding the area of attention. In an image processing apparatus, an image acquisition unit acquires an X-ray image, created on the basis of an absorption rate of X-rays, where at least a blood vessel and a device for examining or medically treating the inside of the blood vessel is included in a subject. The region of interest acquisition unit acquires one or more regions including at least a portion of the device included in the X-ray image as the region of interest. The tracking unit tracks each of the regions of interest R in the X-ray image. The notification unit notifies a user of the image processing apparatus of the fact that if at least one of the regions of interest satisfies the condition determined for each of the regions of interest. The present disclosure also includes recording and creating a summary of actions taken during surgeries.

A system and method are provided for providing continuous automatic alignment of bone(-pieces), instruments, and implants based on only one additional X-ray image without the need to change the position of the X-ray source. According to the invention, a 2D X-ray image is received, which shows the target surgical site. Artificial intelligence-assisted automatic detection and localization of objects such as bone(-pieces), tools (such as drills), and / or implants, combined with prior information about the surgical procedure, is used to calculate their relative 3D positions and orientations at any desired time. This alignment of objects can be repeated multiple times, thus providing guidance in quasi-real time.

The present invention provides a technique to assist users in performing procedures by providing image data, indicators, and / or other data associated with medical devices in an appropriate orientation. [Solution] The user interface can present an image representation showing image data from the scope and / or a work channel indicator showing the rotation angle of the scope's work channel. When the scope rotates, the rotation adjustment can be applied to the image representation, allowing the image representation to rotate within the user interface. Furthermore, the work channel indicator can also rotate within the user interface.

A hip joint prosthesis adapted to be implanted in a hip joint of a human patient. The hip joint prosthesis has a length axis extending in a proximal-distal direction when implanted. The hip joint prosthesis comprises a first proximal area and a second distal area, and wherein said first proximal area comprises a first metallic material having a first elasticity and wherein said second distal area comprises a second metallic material having a second elasticity. The first and second metallic materials are connected through net attractive forces, and the first and second metallic materials have different elasticity, such that the difference in elasticity affects the elasticity of the hip joint prosthesis along the length axis thereof.

The invention relates to an image processing device (1) comprising an input (2) for receiving image data representing a region of interest in a patient's body from a medical X-ray imaging apparatus (100). The image data comprises a first dark-field image obtained for a first X-ray energy spectrum and a second dark-field image obtained for a second, different X-ray energy spectrum. A combination unit (3) provides a combined image representing a medical condition map (e.g. a lung condition map) by combining the first dark-field image and the second dark-field image.

A digital breast tomosynthesis (DBT) method includes: disposing a breast of an examination subject between an X-ray irradiator and an X-ray detector; acquiring first image data by emitting X-rays toward the breast of the examination subject; analyzing the first image data to estimate a type of breast lesion by using a pre-trained AI image diagnosis portion; determining an angular range for performing DBT according to the estimated type of breast lesion; performing the DBT in which the X-ray irradiator rotates around the breast within the determined angular range and emits X-rays toward the breast at every predetermined angular interval, to acquire second image data; and reconstructing the second image data to generate a tomosynthesis image, wherein a first dose, which is a total X-ray dose in acquiring the first image data, is smaller than a second dose, which is a total X-ray dose in performing the DBT.