211results about "Tomosynthesis" patented technology

An x-ray apparatus and method can improve x-ray imaging in a variety of ways. For example, the improve x-ray apparatus can reduce scatter from x-ray images acquired by two-dimensional detectors. An improved 2D x-ray apparatus can provide 3D imaging for medical and / or industrial applications. An improved 2D x-ray apparatus and method can produce separate material imaging, and composition analysis for characterization and correlation of image, densitometry, and composition information of individual component or individual material within a single subject. Non-rotational 3D microscopy, combining 2D or 3D full field x-ray imaging and high resolution 2D or 3D x-ray microscopy or spectral absorptiometry and spectroscopy can achieve a higher resolution and wider field of view in x-ray imaging and quantitative analysis in 3D and real time. The x-ray apparatus can improve tracking and / or surgical guidance in time and / or space.

Methods and systems for identifying a region of interest in breast tissue utilize artificial intelligence to confirm that a target lesion identified during imaging the breast tissue using a first imaging modality (e.g. x-ray imaging) has been identified using a second imaging modality (e.g. ultrasound imaging). A computing system operating a lesion matching engine utilizes a machine learning classifier algorithm trained on cases of x-ray images and corresponding ultrasound images in which lesions were identified for further analysis. The lesion matching engine analyzes a target lesion identified with x-ray imaging and a potential lesion identified with ultrasound imaging to determine a likelihood that the target lesion is the same as the potential lesion. A confidence level indicator for the lesion match is presented on a display of a computing device to aid a healthcare provider in locating a lesion in breast tissue.

Systems and methods are described that implement displaying grouped medical images for review. Current medical image management systems generally use thumbnail image grouping of images that have the same position and side. These groups of thumbnail images can be large, making it difficult for a clinician (e.g., a radiologist) to quickly find a particular view they are interested in reviewing. The disclosed systems and methods provide for user-selectable grouping and ungrouping of thumbnail images in a graphical user interface, which makes it easier for a clinician to quickly find a particular view that they are interested in and enables a more-efficient review of an imaging study.

An X-ray detector module of a multi-module X-ray detector array having a local processing unit configured to provide real-time control and computational capabilities at the x-ray detector module. In various embodiments, by providing these capabilities in the detector module itself, as opposed to a component located downstream of the detector module, there may be an immediate cost reduction, opportunities to include additional features, and performance improvement opportunities not otherwise practical to implement in conventional X-ray imaging systems.

Method for operating a dental diagnostic imaging system for temporomandibular joint (TMJ) diagnostics and / or TMJ therapy, providing at least two modalities for generating (205, 210) three-dimensional image data, wherein a first image and at least a second image depicting the surface of the object (120) to be imaged are tomographically generated for a dental object (120) comprising at least one TMJ (105, 110), wherein the at least two three-dimensional image data generated (205, 210) in the at least two images are combined by means of a multimodal registration (225, 230) (225), wherein the generation (205, 210) of the at least two three-dimensional image data on the object (120) to be imaged is carried out with markings (125, 310 - 325) captured in the at least two images of different modalities (200).and wherein the at least two three-dimensional image data are spatially assigned to the temporomandibular joint (105, 110) by means of multimodal registration (225, 230) on the basis of the markers (125, 310-325) captured in the three-dimensional image data of both modalities (225), wherein the markers (125, 310-325) are arranged in a spatially restricted recording area for the at least two recordings of different modalities, wherein the markers (125, 310-325) are visible in the at least two recordings of different modalities, and wherein the image data generation is carried out at least by means of the first tomographic recording with the spatially restricted recording area corresponding to the markers (125, 310-325) (205, 210), wherein the spatially restricted recording area is arranged within the oral region of a patient for temporomandibular joint diagnostics and / or for temporomandibular joint therapy, characterized in thatthat the markings (125, 310 - 325) are arranged on a template (115) that can be precisely positioned within the patient's oral cavity, wherein the template (115) is placed in the restricted recording area (200) before the generation (205, 210) of the three-dimensional image data.

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.

An X-ray detector comprises a detector panel (100) comprising a surface with a plurality of detector pixels, wherein the detector pixels are configured to convert received X-rays into electric signals representative of values indicative of the received X-rays. A data interface (308) transmits images having a fixed number of output pixels. A control unit controls to set (401) a region of interest comprising at least a subset of the plurality of detector pixels, wherein a number of detector pixels in the region of interest is independent of the number of output pixels. The control unit maps (403) the region of interest onto an output image having the fixed number of output pixels. The control unit resamples (404) the detector pixels within the region of interest to obtain values for the output pixels of the output image, and transmits (405) the output image via the data interface.

X-ray system (2) comprising an X-ray source (4) which, during operation, generates X-ray radiation (10) at several X-ray focal spots (8), - wherein each X-ray focal spot (8) is assigned a collimator (12) which selects the X-ray radiation (10) generated in the respective X-ray focal spot (8) and directed towards a common detector (14), and - wherein the collimators (12) are arranged in a fixed position with respect to their respective associated X-ray focal spot (8).

The invention relates to a method for generating a plurality of projection records. The method comprises the steps of: simultaneously activating a plurality of X-ray sources multiple times at a start time for each clocked exposure time period to generate an X-ray beam having a modulated emission intensity; and during the exposure time period, detecting an X-ray beam of the X-ray source by means of the X-ray detector at a start time, thereby producing a plurality of projection records. The method is characterized in that during the period of the exposure time period, the emission intensity of the X-ray sources is amplitude-modulated about a constant offset emission intensity greater than zero, such that the emission intensity of at least one of the X-ray sources differs at two successive starting times, the emission intensity of the X-ray sources being not equal to zero during the exposure time period.

According to an exemplary embodiment of the disclosure, an imaging system and method is provided for determining the need for generation of enhanced diagnostic images of a patient. The imaging system includes a radiation source operable at to emit radiation at multiple energy levels, a detector alignable with the radiation source, a controller operably connected to the radiation source and detector to generate image data in an imaging procedure, and a computer aided detection (CAD) system configured to analyze low energy (LE) images to locate regions of interest (ROI) and / or other triggering attributes, characteristics or findings within the object. Upon locating one or more triggering attributes, characteristics or findings within the LE images, the system and method can acquire one or more high energy (HE) images of the object, and can process the one or more LE images and the one or more HE images to form enhanced diagnostic 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.

The invention relates to a mammography system having a stand unit for locating the mammography system on the floor; an L-shaped source unit, the L-shaped source unit including an arm connected to an X-ray detector in a rotatably mounted manner on a front face of the stand unit, and another arm of the L-shaped source unit protrudes substantially perpendicularly, an X-ray source being located at an end of the source unit remote from the stand unit; and a substantially U-shaped protective unit.

The invention relates to a computer-implemented method for determining bone information describing the skeletal maturity of a patient (54), comprising the steps: providing input data, comprising spectrally resolved X-ray data of an area of ​​interest (33) of the patient (54) to be used for assessing skeletal maturity with at least two X-ray image datasets related to different X-ray spectra, applying a trained evaluation function to the input data to obtain the bone information as output data, and outputting the bone information.

An image processing device detects a spicula candidate region having a radial line structure from each of a plurality of tomographic images indicating a plurality of tomographic planes of an object, selects, as a tomographic image group, a plurality of the tomographic images corresponding to a plurality of the spicula candidate regions indicating the same radial line structure among a plurality of the detected spicula candidate regions, and generates a composite two-dimensional image using the selected tomographic image group.

The present invention relates to an X-ray imaging apparatus having an X-ray generator and an X-ray detector disposed at both ends of a C-shaped arm so as to take X-ray images of an object placed therebetween, the X-ray imaging apparatus comprising: the C-shaped arm; a guide rail connected to one end of the C-shaped arm; the X-ray generator connected to the guide rail; the X-ray detector disposed at the other end of the C-shaped arm and facing the X-ray generator; and a drive unit for moving the X-ray generator along the guide rail.

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.

A method is for reconstructing an image from recording data. In an embodiment, the method includes providing or measuring recording parameters with which the recording data was created; generating a preprocessing filter for the recording data based on the recording parameters; prefiltering the recording data with the preprocessing filter, to create prefiltered recording data; and reconstructing the image from the prefiltered recording data. A prefilter-generating unit, an apparatus corresponding to the method, a control facility and an image-taking system are also disclosed.

An inventive imaging method includes: (a) causing a beam to travel from an emitter through an examination area for receipt at a detector; and (b) within the detector, (i) transforming the beam that is received into light, (ii) transforming the light into electrical signals representative of digital images corresponding to the examination area, including using a collector within the detector to collect the light as it passes to photosensitive areas of the collector without first passing through any wiring layer of the collector, and (iii) transmitting from the detector the data representative of digital images for display of the digital images to a user on a computing device. The detector includes wiring layers having stacked substrates attached together, each including one or more processing circuits for fast readout and dual native ISO. Other innovative imaging apparatus and methods include a stacked films-based image intensification and light recycling method.

The present disclosure provides methods, systems, and non-transitory computer readable media for evaluating patient tissue screening images using an Al model as a tool for assisting physicians in correctly identifying malignancies in screening images. By generating an Al score based on a malignancy likelihood from the screening images, various workflows may follow to either validate or contradict a physician's decision for recalling the patient. Where the Al score contradicts the recall decision, the screening images are transmitted to a second physician for review, whereby the original recall decision is affirmed or a consultation between the physicians is requested.

Disclosed herein are methods of treating breast cancer in a subject. Preferably, these methods include presenting a plurality of mammograms from one or more breasts of a subject over a time period, performing an algorithm-based analysis of the mammograms, the algorithm predicting a risk of interval or occult mammographic cancers, and administering an estrogen receptor modulating pharmaceutical to the subject based on a breast cancer risk score generated from the algorithm-based analysis.

X-ray sources emit X-rays into an examination region along different projection views. An X-ray detector array detects the X-rays emitted by the X-ray sources after passing through the examination region. X-ray imaging data are acquired by cycling through the X-ray sources with each step of the cycle including: switching an active X ray source on to emit X-rays and the other X ray sources off to not emit X rays, and acquiring X ray imaging data along the projection view corresponding to the active X-ray source that is switched on. Tomosynthesis image reconstruction is performed on the X ray imaging data to generate at least one volumetric image. A time sequence of spatially aligned images is produced from the time sequence of volumetric images. A perfusion image and / or a ventilation image is generated based on voxel intensity variation over time of the time sequence of spatially aligned images.

Provided are an image processing device, an image processing method, and an image processing program that can easily determine a distribution of a faint calcification having low visible in a radiographic image. An image processing device includes at least one processor. The processor detects a faint calcification from a radiographic image captured by irradiating a breast with radiation and displays a calcification distribution image showing a distribution of the faint calcification in the breast in the radiographic 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 modular X-ray source and method for replacement of such an X-ray source are disclosed. The source is inside a consumable modular enclosure where the entire assembly is swapped out during maintenance. The enclosure covers an X-ray tube, high voltage circuit boards 6 and cooling insulating oil are arranged inside the module enclosure. The enclosure structure includes an X-ray window, connector engagement alignment guide and electrical connectors. The modular X-ray source is used in a multiple source tomosynthesis imaging system where multiple pulsed X-ray sources are utilized. The easy replacement of X-ray tube assembly inside the consumable modular enclosure results in lower maintenance cost and overall reliable X-ray imaging machine. The modular source has potential to increase the machine volume in the field and create new standards for replaceable modular X-ray source.

According to an exemplary embodiment of the disclosure, an imaging system and method is provided for determining the need for generation of enhanced diagnostic images of a patient. The imaging system includes a radiation source operable at to emit radiation at multiple energy levels, a detector alignable with the radiation source, a controller operably connected to the radiation source and the detector to generate image data in an imaging procedure, and a computer aided detection (CAD) system configured to analyze initial projection images to locate any regions of interest (ROI) within the object. Upon locating analyzing one or more ROIs within the initial projection images, the system and method can determine imaging parameters to acquire one or more additional projection images of the object, and can process the one or more initial projection images and the one or more additional projection images to form one or more enhanced diagnostic images.

An X-ray imaging system is presented that uses multiple pulsed X-ray source pairs in motion to perform efficient and ultrafast 3D radiography. The sources move simultaneously in constant speed as a group on an arc trajectory. Each individual source also moves fast around its static position in a small distance, but one source moves in the opposite direction to another to cancel linear momentum. The trajectories can also be arranged horizontally at a ring structure. In X-ray source pairs, each source part moves in the opposite angular direction to another to cancel angular momentum. The individual X-ray sources are triggered by an external exposure control unit when they have a speed equal to the group speed but in the opposite linear or angular direction. This allows the sources to remain relatively stationary during activation. 3D data can be acquired in a wider field of view in a shorter time, and image analysis is real-time.

Systems and methods for analyzing images. The methods comprise using an imaging device to acquire a pre-shot image of a target anatomical area of an individual; analyzing the pre-shot image to assess image quality of one or more regions within the pre-shot image; and determining acquisition parameters for a full-dose image from the one or more measures of image quality. The methods also include acquiring, by the imaging device, a full-dose image using the acquisition parameters determined during analysis of the pre-shot image; and generating a final image from the full-dose image.

Described herein are systems, methods, and instrumentalities associated with processing mammogram images using machine learning based techniques. An apparatus as described herein may obtain a mammographic image of a person, extract features from the mammographic image using a feature encoder, and predict a health condition of the person based on the extracted features. The feature encoder may be trained using a self-supervised technique and based on multi-view mammogram images that may belong to a same person or to different people.

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.

Mammography system (100), comprehensive - a swivel arm (108, 308, 508, 608, 708, 1008, 1108), - an X-ray source (102), and - a protection unit (103, 203, 303, 403, 503, 603, 703, 803, 903, 1003, 1103, 1203, 1303, 1403, 1503), wherein the swivel arm (108, ..., 1108) is designed to swivel the X-ray source (102), where the protection unit (103, ..., 1503) is arranged in a stationary position, wherein the protective unit (103, ..., 1503) is arranged in a protective position to prevent a collision between a patient and the swivel arm (108, ..., 1108), wherein the protection unit (103, ..., 1508) has a removable section (203.2, 303.2, 403.2, 503.2, 603.2, 703.2, 803.2, 903.2, 1003.2, 1103.2, 1203.2, 1303.2, 1403.2, 1503.21, 1503.22) and a fixed section (203.1, 303.1, 403.1, 503.1, 603.1, 703.1, 803.1, 903.1, 1003.1, 1103.1, 1203.1, 1303.1, 1403.1, 1503.1) includes wherein the removable section (203.2, ..., 1503.22) of the protective unit (103, ..., 1503) can be removed from the protective position.