18results about "Sterographic imaging" patented technology

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

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).

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.

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.

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.

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.

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.

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.

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.