29results about "Sterographic imaging" patented technology

An imaging device is provided for acquiring a time series of in vivo images of a region of a subject's body. The imaging device includes at least three energy sources, at least three detectors for detecting energy from the at least three energy sources passing through the region of the subject's body located between the energy sources and the detectors, and a controller configured to operate the energy sources and detectors to acquire a time series of in vivo images of the region of the subject's body. At least two pairs of energy sources and detectors are spatially positioned around the subject's body in a first plane, and at least one pair of energy sources and detectors are spatially positioned around the subject's body in a second plane. The first and second planes intersect through the region of the subject's body to be imaged. A method for acquiring a time series of in vivo images of a region of the subject's body using the imaging device is also provided.

A radiotherapy treatment apparatus for imaging and treating a patient, comprising: a radiotherapy system comprising a treatment radiation source configured to perform radiotherapy treatment of a patient by directing treatment radiation towards the patient, wherein the patient is located substantially within a treatment region defining a longitudinal axis, wherein the treatment radiation source is moveable with respect to the longitudinal axis to thereby enable a selection of a treatment direction in preparation for radiotherapy treatment of the patient; an imaging system comprising an imaging radiation source and a radiation detector, wherein the imaging radiation source is moveable with respect to the longitudinal axis and is arranged to direct imaging radiation towards the patient in an imaging direction, and wherein the radiation detector is arranged to measure the imaging radiation after interaction of the imaging radiation with the patient, wherein the radiation detector comprises one or more photon counting detector arrays defining a sensitive area of the radiation detector, and wherein the imaging system is configured to generate multi-spectral images of the patient based on measurements of the imaging radiation by the one or more photon counting detector arrays.

The present invention relates to X-ray imaging. There is provided an X-ray device (100). The X-ray device (100) comprises an X-ray generator (10) and an X-ray detector (12). The X-ray generator (10) is configured to generate a polychromatic X-ray beam in a frequency range for a subject to be imaged. The polychromatic X-ray beam is configured to have an energy dependent angulation with respect to the X-ray detector (20). The X-ray detector (20) is configured to acquire a plurality of energy-resolved absorption images of the subject, which are usable for generating a stereo-absorption image of the subject. This new imaging modality can be seen as being in-between purely projective imaging and full 3D modality. Thereby, it can be used in an early stage of the diagnostic pathway for clarifying indications without the need for acquiring full 3D images. The X-ray device may relax the requirements on the exact patient positioning for subtle exams (e.g., ankle lateral) since the radiologist can compensate for mis-positionings after the image acquisition

In one embodiment, a medical image processing apparatus includes processing circuitry configured to: acquire an ultrasonic image generated from a signal that is acquired by a detector of an ultrasonic catheter inserted into an object's body; acquire an X-ray image depicting the detector and an imaging target that is at least one of a medical device inserted into the object's body and a region of interest inside the object's body; detect a position of the detector depicted in the X-ray image and a position of the imaging target depicted in at least one of the ultrasonic image and the X-ray image; and uses respective positions of the detector and the imaging target to calculate moving support information for moving the ultrasonic catheter in a manner such that the imaging target is included within a field of view "FOV" of the detector or moved towards the center of the FOV.

Cable guide (400) for a mammography system (100), the cable guide (400) comprising: - a fastening device for securing the cable guide (400) to a component of a mammography system (100); - at least one guide body, wherein the guide body has a recess (403) delimited by a wall (401) for receiving lines (305), wherein the wall (401) spans a guide direction (F), so that lines (305) accommodated in the recess (403) extend substantially in the guide direction (F), wherein the wall (401) of the guide body has an insertion opening (405) for inserting lines (305) into the recess (403) substantially perpendicular to the guide direction (F).

Described is a medical apparatus (1) for X-ray analysis, comprising a machine (2) for allowing a diagnosis provided with at least one source (3) configured for emitting X-rays, at least one X-ray detector (4) defining a detection plane (S), a probe (50) equipped with a needle (51) for treating the body of a patient, an immobiliser (10) comprising an immobilising element (11), a supporting frame (6), supporting the at least one source (3), the at least one X-ray detector (4), the immobiliser (10) and the probe (50); a control unit (U) connected at least to the source (3) and to the X-ray detector (4); the probe (50) is connected to the supporting frame (6) movably along a first direction (X), along a second direction (Y) perpendicular to the first direction (X) and along a third direction (Z) at right angles to the detection plane (S), the first direction (X) and the second direction (Y) lying in a plane parallel to the detection plane (S); The apparatus (1) is configured for moving said probe (50) in the zone (5) above the immobiliser (10) and allow a positioning of the needle (51), along the first direction (X), selectively in the zone (5) above the immobiliser (10) and in the right and left side relative to the immobiliser (10); the immobiliser (10) is connected to the supporting frame (6) and is movable, independently of the probe (50), at least along the third direction (Z).

Systems, instruments, and methods for surgical navigation with verification feedback are provided. The systems, instruments, and methods may be used to verify a trajectory of a surgical tool during a procedure. The systems, instruments, and methods may receive one or more captured images of an anatomical portion of a patient; execute a surgical plan to insert the surgical tool into the anatomical portion; receive sensor data collected from one or more sensors being inserted into the anatomical portion; determine whether the sensor data corresponds to the surgical plan; and send, in response to determining that the sensor data does not correspond to the surgical plan, an alert indicating that the surgical tool is not being inserted according to the surgical plan. The one or more sensors may be attached to the surgical tool.

An imaging device for acquiring a time series of in vivo images of a subject's body is provided. The imaging device includes energy sources, detectors for detecting energy from the energy sources passing through the subject's body located between the energy sources and detectors, and a controller configured to operate the energy sources and detectors to acquire a time series of in vivo images of the subject's body. Pairs of energy sources and detectors are spatially positioned around the subject's body in a first plane, and a pair of energy sources and detectors is spatially positioned around the subject's body in a second plane. The first plane and the second plane intersect through the subject's body to be imaged. A method for acquiring a time series of in vivo images of a subject's body using the imaging device is also provided.

A method for correcting projection images in CT image reconstruction is provided. The method may include obtaining a plurality of projection images of a subject. Each of the plurality of projection images may correspond to one of the plurality of gantry angles. The method may further include correcting a first projection image of the plurality of projection images according to a process for generating a corrected projection image. The process may include performing, based on the first projection image and a second projection image of the plurality of projection images, a first correction on the first projection image to generate a preliminary corrected first projection image. The process may also include performing, based on at least part of the preliminary corrected first projection image, a second correction on the preliminary corrected first projection image to generate a corrected first projection image corresponding to the first gantry angle.

A breast X-ray imaging apparatus comprising a detection mechanism and a needle holder. The detection mechanism may include a ray tube and a detector that is arranged opposite to the ray tube. An irradiated region may be arranged between the ray tube and the detector. The needle holder may be configured to move relative to the detection mechanism, and the needle holder may be arranged outside the irradiated region. A breast biopsy positioning device may be mounted on the breast X-ray imaging apparatus. The needle holder of the breast biopsy positioning device may be driven to move based on different workflows of the correction process and the verification process to move the needle tip of the puncture needle to a preset position, and a pair of stereo positioning images may be collected and identified. The accuracy correction and verification of the breast biopsy positioning device may be achieved by measuring the position of the needle tip and the preset position.

This invention relates to X-ray imaging. An X-ray apparatus (100) is provided. The X-ray apparatus (100) includes an X-ray generator (10) and an X-ray detector (12). The X-ray generator (10) is configured to generate a multicolor X-ray beam within the frequency range of the object to be imaged. The multicolor X-ray beam is configured to have an energy-dependent angle relative to the X-ray detector (20). The X-ray detector (20) is configured to acquire multiple energy-resolved absorption images of the object, which can be used to generate a stereoscopic absorption image of the object. This novel imaging modality can be considered as an intermediate between pure projection imaging and full 3D modality. Therefore, it can be used in the early stages of the diagnostic process to clarify indications without the need to acquire a full 3D image. The X-ray apparatus can relax the requirement for precise patient positioning for detailed examinations (e.g., lateral ankle) because radiologists can compensate for misalignment after image acquisition.

To improve breast mammography imagery via use of a digital “slot scanning” imaging system that accommodates the changing thickness of the breast from the chest wall to the nipple by scanning the breast from the chest outward to the nipple or vice versa instead of the side-to-side methodology and using Automatic Exposure Control or AEC parameters optimized for the changing thickness and composition of the breast at each scan location and an improved breast compression device, wherein uniform breast compression mechanism includes a first breast plate and a second breast plate, wherein at least one of said first breast plate and said second breast plates includes an angle adjustment or tilt to account for the high variability in breast sizes and configurations while maintaining optimal immobilization with excellent patient comfort.

The invention relates to X-ray imaging. An X-ray apparatus (100) is provided. The X-ray apparatus (100) comprises an X-ray generator (10) and an X-ray detector (12). The X-ray generator (10) is configured to generate a polychromatic X-ray beam within a frequency range of an object to be imaged. The multicolor X-ray beam is configured to have an energy dependent angle with respect to the X-ray detector (20). The X-ray detector (20) is configured to acquire a plurality of energy-resolved absorption images of the object, the plurality of energy-resolved absorption images being usable to generate a stereoscopic absorption image of the object. This new imaging modality can be considered between pure projection imaging and full 3D modality. Thus, it can be used to clarify the indication at the early stage of the diagnostic path without the need to acquire a complete 3D image. The X-ray apparatus may relax the requirement for precise patient positioning for fine examinations (e.g., outboard of the ankle), since the radiologist may compensate for misalignment after image acquisition.

An example image registration system (100) identifies subsurface structures (502, 504) at a surgical site (306) based on subsurface imaging data from a subsurface image scan at the surgical site. The image registration system (100) uses the subsurface structures (502, 504) identified at the surgical site to register endoscopic imaging data (304-1) from an endoscopic imaging modality (302-1) with additional imaging data from an additional imaging modality (304-2). Corresponding systems and methods are also disclosed.

An imaging device for acquiring time-series in-vivo images of a predetermined region of a subject's body is provided, the imaging device including at least one energy source, at least one detector positioned between the energy source and the detector for detecting energy from the at least one energy source passing through the region of the subject's body, a controller configured to operate the at least one energy source and the at least one detector to acquire time-series in-vivo images of the region of the subject's body, at least one sensor that monitors physiological parameters associated with the region of the subject's body being imaged, and at least one processor configured to determine timing of image acquisition based at least on the monitored physiological parameters. A method for acquiring time-series in-vivo images of a predetermined region of a subject's body using the imaging device is also provided.

The invention is entitled "Visually Guided Biopsy System and Method for Mammography." The invention discloses a mammography system that includes a biopsy guidance system that employs a simplified mechanical arm support to enable previously unavailable locations to be used in conjunction with a visual guidance and control system for mounting a biopsy device directly to the mammography system, such as on a compression paddle. The visual system operates to determine the position of the biopsy device and biopsy needle tip, and control movement / operation of the biopsy guidance system, such as to a final end-of-device pose or pre-firing position of the biopsy device to perform a biopsy procedure. The visual system visually determines the position of the biopsy device relative to the region of interest being biopsied within the required tolerances of the biopsy procedure using one or more cameras without requiring precise position information to be provided by the biopsy guidance system to the mammography system.

An apparatus for performing a vascular assessment is disclosed. The apparatus creates a three-dimensional model that is representative of a coronary vessel tree of a patient based on at least two angiographic images. The apparatus estimates first blood flow resistance values for points along at least some vascular segments of the coronary vessel tree using vascular geometrical dimensions of the three-dimensional model. The apparatus also estimates second blood flow resistance values for the points along the at the least some vascular segments of the coronary vessel tree using a volume of a crown of the vascular segment downstream from the respective point. The apparatus determines fractional flow reserve (“FFR”) by calculating a ration of the first blood flow resistance values and the second blood flow resistance values at each of the points along the at least some vascular segments of the coronary vessel tree.

The subject of the invention is a system and method for registering imaging data from different imaging modalities based on subsurface image scans. An exemplary image registration system (100) identifies a subsurface structure (502, 504) at a surgical site (306) based on subsurface imaging data from a subsurface image scan at the surgical site. An image registration system (100) registers endoscopic imaging data (304-1) from an endoscopic imaging modality (302-1) with additional imaging data from an additional imaging modality (304-2) using a secondary surface structure (502, 504) identified at a surgical site. Corresponding systems and methods are also disclosed.

Embodiments of the present disclosure relate to the technical field of radiation treatment, and provide a method of dynamically irradiating a target in a patient from a large solid angle representing a portion of a sphere and a method for planning such dynamic radiation treatment. The method comprises: directing a beam of radiation from an external source of radiation at the target in the patient while dynamically moving the external source of radiation concentrically about a common isocenter following one or more planned paths on a sphere, so that the source of radiation can move through a plurality of different latitudinal and longitudinal angles to irradiate the target from more non-coplanar orientations, and can perform irradiation while moving, thereby improving the comprehensiveness, effectiveness and efficiency of transmitting a radiation energy to the target.

The present invention relates to X-ray imaging. There is provided an X-ray device (100). The X-ray device (100) comprises an X-ray generator (10) and an X-ray detector (12). The X-ray generator (10) is configured to generate a polychromatic X-ray beam in a frequency range for a subject to be imaged. The polychromatic X-ray beam is configured to have an energy dependent angulation with respect to the X-ray detector (20). The X-ray detector (20) is configured to acquire a plurality of energy-resolved absorption images of the subject, which are usable for generating a stereo-absorption image of the subject. This new imaging modality can be seen as being in-between purely projective imaging and full 3D modality. Thereby, it can be used in an early stage of the diagnostic pathway for clarifying indications without the need for acquiring full 3D images. The X-ray device may relax the requirements on the exact patient positioning for subtle exams (e.g., ankle lateral) since the radiologist can compensate for mis-positionings after the image acquisition

A system and method for constructing fluoroscopic-based three dimensional volumetric data from two dimensional fluoroscopic images including a computing device configured to facilitate navigation of a medical device to a target area within a patient and a fluoroscopic imaging device configured to acquire a fluoroscopic video of the target area about a plurality of angles relative to the target area. The computing device is configured to determine a pose of the fluoroscopic imaging device for each frame of the fluoroscopic video and to construct fluoroscopic-based three dimensional volumetric data of the target area in which soft tissue objects are visible using a fast iterative three dimensional construction algorithm.

The invention discloses a movable three-dimensional scanning device which comprises a chassis mechanism, a rotary scanning mechanism and a standing mechanism, the standing mechanism is fixedly connected to the chassis mechanism, and the rotary scanning mechanism is movably connected to the chassis mechanism. The chassis mechanism comprises a bottom plate, an inner flange is arranged in the middle of the bottom plate and connected with a standing plate fixing plate, the upper portion of the standing plate fixing plate is fixedly connected with a standing plate, an outer flange is arranged on the outer ring of the inner flange, a rotary drive is arranged on the outer side of the outer flange and drives the outer flange to rotate, and the top of the outer flange is connected with a housing which is fixed to the bottom of a rotating frame. A flat plate assembly and a bulb tube assembly are arranged on the two sides of the rotating frame respectively.

An imaging device for acquiring a time series of in vivo images of a region of a subject's body is provided. The imaging device includes a energy source, a detector for detecting energy from the energy source passing through the region of the subject's body located between the energy source and detector, a controller configured to operate the energy source and the detector to acquire a time series of in vivo images of the region of the subject's body, a sensor for monitoring a physiological parameter associated with the region of the subject's body to be imaged and a processor configured to determine timing of the image acquisition based at least on the monitored physiological parameter. A method for acquiring a time series of in vivo images of a region of a subject's body using the imaging device is also provided.

This invention relates to an X-ray tube for stereoscopic imaging, a method for generating X-ray radiation for stereoscopic imaging, and a related computer program product. The X-ray tube for stereoscopic imaging according to the invention comprises: - a evacuated X-ray tube housing; - an electron emitter device disposed within the X-ray tube housing; - an anode unit disposed within the X-ray tube housing for generating X-ray radiation for stereoscopic imaging based on electrons incident on two focal spots; and - a control unit, characterized in that - a first emitter surface and a second emitter surface are disposed in the optical path of the X-ray radiation generated in the respective focal spots; and - the control unit is configured to set the spacing between the two focal spots by pre-setting the proportion of the emitted electrons from the first emitter surface and / or the second emitter surface.

An imaging device for acquiring a time series of in vivo images of a subject's body is provided. The imaging device includes energy sources, detectors for detecting energy from the energy sources passing through the subject's body located between the energy sources and detectors, and a controller configured to operate the energy sources and detectors to acquire a time series of in vivo images of the subject's body. Pairs of energy sources and detectors are spatially positioned around the subject's body in a first plane, and a pair of energy sources and detectors is spatially positioned around the subject's body in a second plane. The first plane and the second plane intersect through the subject's body to be imaged. A method for acquiring a time series of in vivo images of a subject's body using the imaging device is also provided.

Rapid diagnosis of acute ischemic stroke (AIS), and endovascular treatment—that is mechanical removal of the clot with endovascular devices—together leads to better outcomes. Systems and methods for decreasing the time to diagnosis are described that include imaging techniques conducted within an angiography suite using two rotating x-ray tubes that acquire x-ray images from a limited number of projection angles and that are processed to provide meaningful diagnostic data.

An imaging device for acquiring a time series of in vivo images of a region of a subject's body is provided. The imaging device includes an energy source, a detector for detecting energy from the energy source passing through the region of the subject's body located between the energy source and detector, a controller configured to operate the energy source and the detector to acquire a time series of in vivo images of the region of the subject's body, a sensor for monitoring a physiological parameter associated with the region of the subject's body to be imaged and a processor configured to determine timing of the image acquisition based at least on the monitored physiological parameter. A method for acquiring a time series of in vivo images of a region of a subject's body using the imaging device is also provided.

In an embodiment, a medical system is disclosed. One embodiment of the medical system comprises a medical processing unit in communication with an intravascular instrument configured to be moved longitudinally within a body lumen and in further communication with a radiographic imaging source configured to obtain radiographic images of the intravascular instrument while the intravascular instrument is moved longitudinally within the body lumen. The medical processing unit is configured to receive radiographic images obtained by the radiographic imaging source, track the intravascular instrument within the radiographic images while the intravascular instrument is moved longitudinally within the body lumen, calculate a movement speed based on the tracking, compare the calculated movement speed to a predefined target movement speed, generate a speed-adjustment suggestion based on the comparison, and output the speed-adjustment suggestion to a display for review by a user.