98 results about "Tomosynthesis" patented technology

An imaging system can include a cone beam tomosynthesis imaging system configured to create a 3D image of a patient anatomy upon an initiation input. The system can also include at least one memory device that has instructions that, when executed by at least one processor, cause the tomosynthesis imaging system to execute multiple actions including obtain the 3D image from the tomosynthesis imaging system; obtain a prior 3D image of the patient anatomy; and register the 3D image with the prior 3D image to produce a composite 3D image. The navigation system can further include an interface system which accepts the initiation input to obtain the 3D image and renders at least a portion of the composite 3D image for review by a supervisor.

A system and method for an innovative approach to medical imaging compression and encryption, specifically designed for tomosynthesis data. It transforms input data to a dyadic distribution, optimizing it for Huffman encoding while preserving critical diagnostic information. The compressed data is processed through a Large Codeword Model (LCM) incorporating a latent transformer, which learns complex patterns and relationships within the imaging data. This process not only achieves high compression ratios but also provides inherent encryption. A neural upsampler, trained to invert the dyadic transformation, reconstructs the original image with high fidelity. The system is particularly effective for handling the redundancies inherent in tomosynthesis datasets, where adjacent slices often contain similar information. By balancing compression efficiency with diagnostic accuracy, this method enables secure storage and transmission of large medical imaging datasets while maintaining the ability to reconstruct high-quality images for accurate diagnosis.

Systems and methods for a robotic endoscopy system are provided. The method comprises: (a) receiving instruction to present, at a graphical display, one or both of: one or more tomosynthesis reconstructions or one or more augmented fluoroscopic overlays; and (b) in response to receiving the instruction, causing the graphical display to present one or both of the tomosynthesis reconstructions or the augmented fluoroscopic overlays.

A back illuminated sensor is included as a collector component of a detector for use in intraoral and extraoral 2D and 3D dental radiography, digital tomosynthesis, photon-counting computed tomography, positron emission tomography (PET), and single-photon emission computed tomography (SPECT). The disclosed imaging method includes one or more intraoral or extraoral emitters for emitting a low-dose gamma ray or x-ray beam through an examination area; and one or more intraoral or extraoral detectors for receiving the beam, each detector including a back illuminated sensor. Within the detector, the beam is converted into light and then focused and collected at a photocathode layer without passing through the wiring layer of the back illuminated sensor.

Methods and systems for identifying internal motion of a breast of a patient during an imaging procedure. The method may include compressing the breast of the patient in a mediolateral oblique (MLO) position. During compression of the breast, a first tomosynthesis MLO projection frame for a first angle with respect the breast is acquired and a second tomosynthesis MLO projection frame for a second angle with respect to the breast is acquired. Boundaries of the pectoral muscle are identified in the projection frames and boundary representations are generated. A difference between the first representation and the second representation is determined. A motion score is then generated based on at least the difference between the first representation and the second representation.

According to one embodiment, an X-ray diagnostic apparatus includes an X-ray irradiator, a scatterer, a grid, and a detector. The X-ray irradiator irradiates X-rays. The scatterer is provided between the X-ray irradiator and an object, that scatters the irradiated X-rays. The grid is provided between the scatterer and the object, that transmits the scattered X-rays within a predetermined angular range. The detector detects X-rays transmitted through the object together with an incident angle of the X-rays.

An imaging system includes an x-ray tube head, a support arm, and a compression system coupled to the support arm. The compression system is independently rotatable relative to the x-ray tube head and includes a compression paddle, a support platform, and an x-ray receptor. The imaging system also includes a light assembly coupled to the support arm and disposed above the compression paddle. The light assembly is configured to direct one or more beams of light towards the support platform.

Systems and methods for x-ray imaging a patient's breast in combinations of dual-energy, single-energy, mammography and tomosynthesis modes that facilitate screening for and diagnosis of breast abnormalities, particularly breast abnormalities characterized by abnormal vascularity.

Various systems are provided for non-uniform thickness and / or sampling of slabs of the breast to present DBT acquisitions. A method for generating a patient image as a set of slabs representing an imaged object, the method comprising acquiring a tomosynthesis projection, reconstructing a series of slab images, each slab representing a portion of a breast, and a plurality of slabs of non-uniform thickness and / or non-uniform sampling in a 3D reconstructed domain defined by x-, y-, and z-axes.

An intraoral tomosynthesis imaging apparatus having an intraoral detector coupled to a frame or radio-opaque marker attached to its radiation facing surface without any frame attached, wherein the frame defines a target aperture for an incident radiation beam. An enclosure seats against the target aperture and houses at least one x-ray source configured to emit a radiation beam from each of a plurality of focal points within the enclosure A collimator is disposed to form a collimated radiation beam and direct the collimated beam through the target aperture and to the detector. A geometric calibration phantom having a plurality of radio-opaque markers is disposed in the path of the collimated beam. This arrangement is modified to operate as a regular intraoral imaging device by accommodating a high-power central source at the same or different distances as other sources from the detector and displacing the phantom from the field of view.

The invention relates to a method for generating a result image (E) on the basis of a tomosynthesis image data set (T) of a chest (O), the chest being fastened to a probe (5) by means of a compression plate (6), the contact surface of the compression plate (6) and / or of the probe (5) facing the chest (O) having a concave arch, the method comprises the following steps: defining an arched layer (S) between the compression plate (6) and the detector (5), the arched layer following the arches of the compression plate (6) and / or the detector (5) or transitions between the arches in terms of its shape; reconstructing a layer image (B), said layer image being on the curved layer (S); generating a result image (E) of the layer stack as the layer image (B); and outputting the result image (E). The invention also relates to a corresponding device and a mammography system.

Provided are a radiography system, an image processing device, an image processing method, and an image processing program that prevent an image of a correction marker from being included in a reconstructed region of a tomographic image obtained by reconstructing a plurality of projection images. A radiography system includes a correction marker that is used to obtain a marker image included in at least one of a plurality of projection images obtained by tomosynthesis imaging, is provided in an irradiation path of radiation in a radiation emitting unit, and is disposed at the position where the marker image is included in a region other than a reconstructed region in the projection image, the reconstructed region being a region used in a case in which the tomographic image is reconstructed from the plurality of projection images among the regions included in the plurality of projection images.

A system and method for reviewing a tomosynthesis image data set comprising volumetric image data of a breast, the method comprising, in one embodiment, causing an image or a series of images from the data set to be displayed on a display monitor and selecting or indicating through a user interface an object or region of interest in a presently displayed image of the data set, thereby causing an image from the data set having a best focus measure of the user selected or indicated object or region of interest to be automatically displayed on the display monitor.

This method for reconstructing a tomosynthesis plane of a target organ (14) is computer-implemented and comprises loading (302) projection images acquired by an X-ray detector (10) of a tomosynthesis apparatus (2), and iterations of steps of calculating (303, 304, 305) images reconstructed from the acquired projection images and a preselected or updated three-dimensional motion of the target organ (14), reprojection images, projection residual images, and updating (306) the three-dimensional motion based on the projection residual images. Each iteration is implemented with the three-dimensional motion updated by the previous iteration. Figure for abstract: Fig 3

The present invention relates to a tomosynthesis system capable of obtaining high-resolution 3D images, wherein three-dimensional images can be obtained by imaging a subject from different positions and / or angles of a plurality of X-ray sources without mechanical movement of X-ray equipment. The tomosynthesis system comprises: an X-ray source unit including a plurality of X-ray sources; a movement unit connected to the X-ray source unit to move the X-ray source unit; angle adjustment units respectively connected to the X-ray sources of the X-ray source unit to adjust irradiation angles of the X-ray sources; and a fixing frame that fixes the angle adjustment units.

The information processing device includes a processor. The processor performs: a reconstruction process of reconstructing a plurality of tomographic images from a plurality of projection images obtained by tomosynthesis imaging that irradiates an object with radiation from a radiation source at a plurality of radiation source positions; a synthesis process of synthesizing the plurality of tomographic images to generate a synthesized two-dimensional image as a projection image based on a virtual radiation source position; an anatomical structure extraction process of extracting anatomical structures from a projection image corresponding to a radiation source position closest to the virtual radiation source position among the plurality of radiation source positions; and a display process of displaying an extraction result of the anatomical structures on a display device together with the synthesized two-dimensional image.

An image generation device, an image generation method, and a program capable of improving the generation accuracy of a pseudo two dimensional image as compared with a case where an image generation model learned using a combination of a plurality of projection images or a plurality of tomographic images and a normal two dimensional image captured separately from tomosynthesis imaging for obtaining the plurality of projection images or the plurality of tomographic images is used are obtained.SOLUTION: The image processing apparatus 16 as an image generation apparatus includes an image generation model that is learned in advance by a plurality of combinations of a plurality of projection images or a plurality of tomographic images and a normal two dimensional image captured by irradiating the breast compressed by the compression member with radiation in tomosynthesis imaging for obtaining the plurality of projection images or the plurality of tomographic images.SELECTED DRAWING: Figure 5

A tomosynthesis scanning system includes an X-ray emitter connected to a first robotic device, and an X-ray detector connected to a second robotic device. The first robotic device moves the emitter along a first spiral trajectory path and, optionally, the second robotic device moves the detector along a second spiral trajectory path during the scanning process. Where both the emitter and detector move, the movement is synchronized. A computer is used to control the first and second robotic devices. In operation, an object to be scanned is positioned between the X-ray emitter and the X-ray detector, then the X-ray emitter is moved along a first spiral path while emitting a photon beam at the X-ray detector and allowing the photon beam to pass through the object before reaching the X-ray detector. Attenuation of the photon beam reaching the X-ray detector is measured and an image is produced based on the measured attenuation of the photon beam.

A method for generating a plurality of contrast-enhanced mammograms of an examination region is described. In the method a plurality of at least two different angular positions is defined for a contrast-enhanced tomosynthesis projection recording of an examination region. At least two low-energy tomosynthesis projection recordings of the examination region are subsequently generated, starting from the at least two different angular positions, in the presence of a contrast agent. Furthermore, at least two high-energy tomosynthesis projection recordings of the examination region are generated, starting from the at least two different angular positions, in the presence of a contrast agent. Finally, at least two contrast-enhanced mammograms are generated by subtracting a respective low-energy tomosynthesis projection recording from a respective high-energy tomosynthesis projection recording for a respective angular position. In addition, a mammography system is described.

An x-ray imaging apparatus 10 comprising a support 30 having two arms, wherein on one arm an x-ray emitter 50 is arranged, and on the other arm a flat panel digital detector 60 is arranged, the emitter and detector arranged opposite each other providing a space therebetween for the positioning of an object for x-ray imaging by the apparatus, the x-ray emitter comprising an array of emitters, the apparatus arranged such that in use different emitters are energisable independently from one another such that 3-dimensional tomosynthesis images are obtainable of the object, with the object, emitter and detector maintained stationary relative to one another.

A method and system for producing tomosynthesis images of a specimen in a cabinet x-ray system. An X-ray source delivers X-rays through a specimen of excised tissue and forms an image at a digital X-ray detector. Multiple X-ray images are taken as the X-ray source moves relative to the stationary breast specimen. The X-ray source moves in a range from about 330° to and including about 30°. The source may travel substantially along a path that generally defines an arc, or linearly, while the detector remains stationary throughout and the source remains substantially equidistant from the specimen platform. The set of X-ray image data taken at the different points are combined to form a tomosynthesis image that can be viewed in different formats, alone or as an adjunct to two dimensional specimen radiography.

Systems and methods related to processing medical image data. Medical image data of a patient's breast tissue is received from a medical imaging device. The medical image data includes a plurality of X-ray projection images of the patient's breast tissue from a plurality of perspectives. The medical image data is encoded using lossy compression. The medical image data is decoded to yield a transmission image. The transmission image is encoded using lossless compression to yield a first compressed image. The first compressed image is transmitted to a first viewing device. The first viewing device is configured to decode the first compressed image to yield the transmission image and view the transmission image using the first viewing device. Viewing the transmission image includes viewing at least one of the plurality of X-ray projection images of the patient's breast or a composite image of the plurality of X-ray projection images.

One or more example embodiments of the present invention relates to a computer-implemented method for providing an outline of a lesion in digital breast tomosynthesis includes receiving input data, wherein the input data comprises a reconstructed tomosynthesis volume dataset based on projection recordings, a virtual target marker within a lesion being in the tomosynthesis volume dataset; applying a trained function to at least a part of the tomosynthesis volume dataset to establish an outline enclosing the lesion, the part of the tomosynthesis volume dataset corresponding to a region surrounding the virtual target marker in the tomosynthesis volume dataset; and providing output data, wherein the output data is an outline of a two-dimensional area or a three-dimensional volume surrounding the target marker.

Systems and methods are provided for a multi-scale deep learning-based digital breast tomosynthesis (DBT) image reconstruction that mitigates the superposition of breast tissue along with the limited angular artifacts, and improves in-depth resolution of the resulting images. A multi-scale deep neural network may be used where a first network may focus on a first parameter, such as limited angular artifacts reduction, and a second network may focus on a second parameter, such as image detail refinement. The output from the first neural network may be used as the input for the second neural network. The systems and methods may reduce the sparse-view artifacts in DBT via deep learning without losing image sharpness and contrast. A deep neural network may be trained in a way to reduce training-time computational cost. An ROI loss method may be used for further improvement on the resolution and contrast of the images.

An image processing apparatus includes a CPU. The CPU acquires a series of a plurality of projection images or a plurality of tomographic images obtained by performing tomosynthesis imaging by irradiating a breast with radiation having a first energy; acquires a plurality of normal two-dimensional images captured by irradiating the breast with radiation having a second energy, which is higher than the first energy, a plurality of times; calculates, for each of the plurality of normal two-dimensional images, a virtual projection position, which is a position at which the breast is virtually projected during the tomosynthesis imaging, from a position of a radiation source in a case in which the normal two-dimensional image is captured; generates a composite two-dimensional image from the plurality of projection images or the plurality of tomographic images based on the virtual projection position calculated for each of the plurality of normal two-dimensional images; and generates a difference image between each of the plurality of normal two-dimensional images and each of the composite two-dimensional images generated for each of the plurality of normal two-dimensional images.

A processor acquires a composite two-dimensional image and region-of-interest information including information of a tomographic image corresponding to a region of interest on the composite two-dimensional image, displays a schema that schematically shows a breast and the composite two-dimensional image, and displays positions of the region of interest in the displayed schema and composite two-dimensional image in association with each other.

The present invention is directed to a breast compression paddle for a mammographic / tomosynthesis imaging system. The paddle including a front wall which is adjacent an imaged patient's chest. The bottom wall which is connected to a curved lower interface extends away from the chest wall and is adjacent to the top of a compressed breast. Two outer edges which extend away from the front reference surface, partially define a slightly raised central portion of the bottom wall. A bottom reference plane, a vertical reference plane substantially orthogonal to the front reference surface and the bottom reference plane, and an access surface disposed proximate at least one of the two outer edge portions are each defined by the bottom wall. The access surface is non-orthogonal to the front reference surface, the bottom reference plane, and the vertical reference plane.

The invention provides a novel CBCT system based on a novel line scanning bulb tube, and belongs to the technical field of X-ray medical image.The novel CBCT system comprises a sampling system and a control system.The sampling system comprises a bulb tube with a light source focus capable of conducting linear track scanning, an energy integration or photon counting detector and a movement rack system; the scanning type anode of the bulb tube can be composed of discrete array light sources and can also be composed of rotary wing anodes, and light source focuses conduct controllable, rapid and repeated scanning or movement in a motion system. Imaging is carried out through controllable light source focus linear track scanning, an imaging method similar to tomosynthesis is achieved at the position of a single bulb tube, and CBCT imaging is achieved under the condition of limited angle sampling through a rotary light source-detector rack combination.