40 results about "X ray radiograph" patented technology

The purpose of the present invention is to provide a method for obtaining a more effective 3D facial image for medical use. The present invention provides a medical imaging system includes a 2D surface image obtaining device including at least one camera for photographing a plurality of 2D facial images of an examinee, at different photography angles or ranges, a visual guidance configured to fix an examinee's line of vision, an X-ray radiography device for radiographing a 3D X-ray radiograph of the examinee's head, and an image synthesis unit for generating a 3D facial image by matching the plurality of 2D facial images with the 3D X-ray radiograph.

The present invention provides digitally driven methods to conveniently and efficiently monitor and evaluate the positions of a patient's teeth during the course of orthodontic treatment. In an exemplary embodiment, an initial set of 3D digital data representing a patient's dental structure is provided by means of an X-ray radiograph and / or an intraoral scan. Then during the course of treatment, a reduced image representing part of the dental structure may be quickly provided using a bite plate or a low resolution intraoral scan. A three-dimensional (3D) image of the full dental structure is subsequently rendered or ‘reconstructed’ by registering elements of the initial image with corresponding elements of the reduced image. By reconstructing the dental structure from the reduced image, the treating professional can provide a precise, manipulable 3D image of the patient's complete dental structure for diagnostic and treatment planning purposes. Other aspects include methods of using these data to compare actual and target teeth positions to evaluate the progress of treatment and suggest revisions to the specification of an orthodontic appliance.

A dental x-ray film viewing device includes a film reader having a digital video camera and an image display screen connected to the video camera for displaying an enlarged digital image of the x-ray film using signals transmitted directly from the video camera. The film reader includes a film illumination station that has a back-lighted film seat. The film seat includes a translucent plate and a non-transparent film anchoring wafer having an opening complimentary to the x-ray film for seating the x-ray film, and blocking light in an area surrounding the x-ray film. The film reader has a video camera having lens thereof focusing on the film window, and the lens has a distortion at the full field less than 3%. The device provides a substantially enlarged high resolution and high contrast digital image as an accurate representation of the original x-ray film, without digital processing by a computer.

A method of detecting lung nodules in an anterior posterior x-ray radiograph comprising the steps of: generating candidate regions in image showing changes in contrast above a threshold level, and eliminating false positives by eliminating edges assignable to organs by: identifying edges; categorizing and eliminating rib edges; categorizing and eliminating lung tissue edges, and categorizing and eliminating blood vessels.

The invention discloses an X-ray comparison system which comprises a displayer and a medical image information system; the displayer is provided with an X-ray slot, the medical image information system is connected with the displayer electrically and used for taking a historical X-ray of a patient, outputting to the displayer for displaying, and regulating the displaying brightness and position of the historical X-ray on the displayer so that the X-ray images inserting in the X-ray slots are overlapped. According to the X-ray comparison system, two X-rays shot in different periods can be overlapped for comparison, a doctor can discover the small difference of the two X-rays, the consumption time is short, and the efficiency is high.

A method and system for segmenting diaphragm regions in a chest X-ray radiograph is disclosed. The diaphragm regions are segmented based on left and right lung lobe regions and a heart region in the chest X-ray radiograph. A right diaphragm region is segmented in the chest X-ray radiograph based a boundary of the right lung lobe. A left diaphragm region is segmented in the chest X-ray radiograph based on the heart region and a boundary of the left lung lobe.

The invention relates to an X-ray film taking and placing robot system, which comprises a movable vehicle body, wherein an electric control cabinet is arranged above the right end of the movable vehicle body, a man-machine interaction interface is arranged on the upper end of the electric control cabinet, a base is arranged above the middle part of the movable vehicle body, the upper end of the base is provided with a six-freedom-degree robot, a film storage house transmission mechanism and a film storage house are arranged above the left part of the movable vehicle body, and the film storage house transmission mechanism is connected with the film storage house. The six-freedom degree robot is applied to the X-ray film taking and placement, the flexible degree is high, the operation speed is high, the time consumed by the X-ray film cassette taking and placement is greatly shortened, the time for shooting one X-ray film cassette can be reduced to 1min, in addition, the continuous automatic shooting of a plurality of X-ray film cassettes can be realized, the work efficiency is greatly improved, the mechanical arm can be folded, the equipment can be conveniently transported, the automation degree is high, and the X-ray radiography continuous operation in any position can be realized.

An X-ray radiograph apparatus with a top board (2) furnished with a pair of guide grooves (3) designed to allow fitting of a footstool by the guide grooves (3) and also allow fitting of an extension top board (8) by the guide grooves (3). In the apparatus, a pair of heads (10) are combined with a pair of rotary shafts. Each of the heads (10) is fitted to an inferior end of the respective rotary shaft. Upon abuttal of an extension top board (8) on the terminal edge of a top board (2), the heads (10) are inserted in the guide grooves (3) from openings (4) thereof and securely fitted in the interiors of the guide grooves (3). Thereafter, the rotary shafts and heads (10) are rotated by rotational operating means (12). The rotary shafts and heads (10) are rotated to an extent of 90 DEG.

The invention relates to an observation device, and particularly relates to an imaging department X-ray film observation device. The technical problem to be solved by the invention is to provide the imaging department X-ray film observation device. In order to solve the technical problem, the imaging department X-ray film observation device provided by the invention comprises a support and the like. Support wheels are arranged at the bottom of the support. A brake is arranged on each support wheel. A moving device is arranged at the bottom in the support. A swinging device is arranged on the left side of the moving device. A magnifying lens is connected with the top of the moving device. A fixation plate is connected with the top of the support. A lighting lamp is arranged in the middle ofthe top of the fixation plate. According to the invention, the device can be conveniently moved to a suitable position; a doctor observes a wide range of an X-ray film; free partial magnifying is realized; the doctor can clearly observe a plurality of parts, which facilitates the doctor to concentrate on the X-ray film from different angles; and a second drawstring and the lighting lamp are wellprotected, which is easy to disassemble and replace the magnifying lens, and is easy to clean the lighting lamp.