135results about "Radiation diagnostic techniques" patented technology

The invention relates to visualizing different types of airway wall abnormalities. A method for visualizing airway wall abnormalities includes acquiring Dual Energy Computed Tomography (DECT) imaging data comprising one or more image volumes representative of a bronchial tree. An iodine map is derived using the DECT imaging data and the bronchial tree is segmented from the image volume(s). A tree model representative of the bronchial tree is generated. Then, for each branch, this tree model is used to determine an indicator of normal or abnormal thickness. Locations corresponding to bronchial walls in the bronchial tree using the tree model are identified. Next, for each branch, the locations corresponding to bronchial walls in the bronchial tree and the iodine map are used to determine an indicator of normal or abnormal inflammation. A visualization of the bronchial tree may be presented with visual indicators at each of the locations corresponding to bronchial walls indicating whether a bronchial wall is thickened and/or inflamed.

A method and apparatus for X-ray tube scanner automation using a 3D camera is disclosed. An RGBD image of a patient on a patient table is received from a 3D camera mounted on an X-ray tube. A transformation between a coordinate system of the 3D camera and a coordinate system of the patient table is calculated. A patient model is estimated from the RGBD image of the patient. The X-ray tube is automatically controlled to acquire an X-ray image of a region of interest of the patient based on the patient model.

There is described a radiological image capturing apparatus, which makes it possible to obtain a good X ray image in which contrast of the peripheral portions are emphasized by employing the Talbot interferometer method and the Talbot-Lau interferometer method. The apparatus is provided with an X-ray tube, a multi-slit member, a first diffraction grating, a second diffraction grating and an X-ray detector. The second diffraction grating contacts the X-ray detector. A distance L between the multi-slit element and the first diffraction grating is set to be not less than 0.5 m, a distance Z₁ between the first diffraction grating and the second diffraction grating is set to be not less than 0.05 m, and a slit interval distance d₀ of the multi-slit element is set to be not less than 2 μm. With the settings, the abovementioned good X-ray image can be obtained by using the Talbot-Lau interferometer system.

This invention relates to the field of radiation imaging. In particular, the invention relates to an apparatus and a method for imaging tissue or an inanimate object using a novel probe that has an integrated solid-state semiconductor detector and complete readout electronics circuitry.

The invention relates to a detection system for automatic detection of bone cancer metastases from a set of isotope bone scan images of a patients skeleton, the system comprising a shape identifier unit, a hotspot detection unit, a hotspot feature extraction unit, a first artificial neural network unit, a patient feature extraction unit, and a second artificial neural network unit.

The radiographic imaging device that configures the disclosed radiographic imaging system has at least a camera that images a main cassette body. Said camera is integrally configured to a radiation source and a control device that controls the main cassette body or is integrally configured to a main radiation source body that houses the radiation source.

An image sensor includes a first semiconductor chip including first and second surfaces; a second semiconductor chip including first and second surfaces; and a first adhesive layer between the second surface of the first semiconductor chip and the second surface of the second semiconductor chip, the first semiconductor chip being stacked on the second semiconductor chip via the first adhesive layer such that a footprint of the first semiconductor chip is larger than a footprint of the second semiconductor chip with respect to a plan view of the image sensor, the first semiconductor chip including an array of unit pixels configured to capture light corresponding to an image and to generate image signals based on the captured light, the second semiconductor chip including first peripheral circuits configured to control the array of unit pixels and receive the generated image signals.

A method of obtaining an X-ray image, the method including: obtaining a first image of an object; receiving a determination whether the first image includes an entirety of a region of interest (ROI); and obtaining a second image of the object, the second image including a portion of the ROI which is absent in the first image.

A system and method for molecular breast imaging (MBI) provides enhanced tumor analysis and, optionally, a real-time biopsy guidance. The system includes a detector head including a gamma ray detector and a collimator. The collimator include multiple collimation sections having respectively different spatially-oriented structures. In addition or alternatively, the multiple collimating section have respectively different collimation characteristics. An image of the tissue acquired with the system may include spatially separate image portions containing image information about the same portion of the imaged tissue. A system is optionally configured to acquire updatable images to provide real-time feedback about the biopsy procedure.

An apparatus and computer-implemented method for training a machine-learning algorithm to perform histopathological analysis is disclosed. The method comprises obtaining (210) a plurality of first microscopic images of first histological specimens that have been stained with a first marker; and obtaining (212), a respective plurality of second microscopic images of second histological specimens that have been stained with a second, different marker. The method further comprises obtaining (220) a respective plurality of mask images generated for the second microscopic images, each mask image identifying a histological feature of interest highlighted in the respective second microscopic image by the second marker. The method comprises training (240) the machine-learning algorithm to predict, from a first microscopic image, a histological feature of interest that would be highlighted in the same specimen by the second marker. Also disclosed is an apparatus and computer-implemented method for histopathological analysis using the trained machine-learning algorithm.

The invention discloses a method and apparatus for generating a tooth panorama image, and a panorama machine for shooting teeth. The method comprises the following steps: determining a reference detector frame frequency, and according to the reference detector frame frequency, determining a shooting detector frame frequency; according to the shooting detector frame frequency, shooting the teeth of a user so as to generate multiple images; performing shift superposition on the multiple images so as to generate a first panorama image; obtaining a fuzzy area in the first panorama image; and performing frame frequency adjustment on each row in the fuzzy image so as to form a clear image, and integrating the clear image with the first panorama image so as to generate a second panorama image. According to the method provided by one embodiment of the invention, through performing imaging on each row of an image by use of different frame frequency change rules, the teeth of the user, no matter tooth cusps or radix dentis, can be placed in a focusing layer, clear imaging is realized, and the sharpness of the panorama image is improved.

A system and method for a molecular breast imaging (MBI) are provided. One MBI system includes at least one cadmium zinc telluride (CZT) detector having a plurality of pixels and a registered parallel hole collimator coupled to a face of the CZT detector. The registered parallel hole collimator includes a plurality of collimator holes, wherein the plurality of collimator holes are aligned with the plurality of pixels, and the spatial dimensions of the plurality of holes are configured based on characteristics of the CZT detector and the registered parallel hole collimator.

The application relates to a scanning protocol acquiring method and device, medical equipment and a storage medium. The method comprises the steps: acquiring a scanning protocol database, wherein thescanning protocol database comprises a plurality of scanning data sets, and each scanning data set comprises information data of a scanning object and a corresponding scanning protocol; acquiring information data of an object to be scanned; querying, in the scanning protocol database, a scanning data set closest to the information data of the object to be scanned, so as to obtain the scanning protocol in the scanning data set, and using the scanning protocol as a scanning protocol of the object to be scanned. The method is based on the individual information of the object to be scanned; the data set closest to the object to be scanned, in the scanning protocol database, is found, and thereby the scanning protocol suitable for the object to be scanned is obtained; the scanning protocol acquisition process is convenient and fast, and does not depend on knowledge, experience and skill level of a doctor or an operator.

A method is described for positioning of an examination object for an imaging method. The method is used to record an external image of externally visible features of the examination object. The recording of the external image is used as the basis for determining a position and/or orientation of at least one part of the examination object assigned to the imaged features. Subsequently, a check is performed as to whether the determined position and/or orientation of the at least one part of the examination object conforms to a reference position and/or reference orientation. Finally, if the determined position and/or orientation of the at least one part of the examination object does not conform to the reference position and/or reference orientation, the position and/or orientation of the at least one part of the examination object is corrected. Also described is an object-positioning facility. Furthermore, an imaging medical facility is described.

Provided is a medical imaging apparatus including a scanner configured to acquire projection data of an object, a three dimensional (3D) recovery module configured to recover a volume of the object based on the projection data, a two dimensional (2D) image generator configured to generate a 2D image of the object based on the volume of the object, a 3D image generator configure to generate a 3D image of the object based on the volume of the object, a 2D display configured to display the 2D image of the object, and a 3D display configured to display the 3D image of the object.

In the radiography system, a camera image of the usage environment in which the electronic cassette is used is captured. An in-image cassette region of the electronic cassette is detected from the camera image. The cassette ID of the electronic cassette is acquired from the in-image cassette region. The acquired cassette ID is collated with the cassette ID of the use cassette set in the console to check whether the use cassette is present.

The invention discloses an acquisition method and an acquisition device of an exposure image. By controlling a bulb tube to transmit X rays, electrical signals, which are outputted by each flat paneldetector after receiving the X rays, are acquired; since a ray projection position of the bulb tube provided by the invention is not bound with any one flat panel detector, a normal exposure image canbe generated in accordance with the output signals of each flat panel detector; and then, on the basis of various grayscale values corresponding to the various exposure images, effective exposure images, which satisfy exposure requirements of a scanned object, can be found out, and subsequently, one of the effective exposure images can be selected out as a final exposure image of the scanned object. Therefore, the problem of the prior art that exposure imaging is achieved based on binding of a ray projection position and a specific flat panel detector can be solved, and an operation in the prior art that it needs to detect whether a current projection position is matched with a used detector or not in advance can be omitted, so that the installation of corresponding detection parts can beavoided, and subsequently, imaging cost can be reduced and the reliability of an imaging system can be improved.

Nonlinear elastography systems and methods are provided. The elastography system includes a data acquisition module, such as an imaging device, and associated system control circuitry. The data acquisition module is configured to acquire various data, such as displacement and/or force data, from a material. A nonlinear transfer function is applied to the acquired data to generate information about the material's stiffness. In one implementation, a map representative of the material's stiffness is generated.