摘要:
A mammograph is provided. The mammograph includes a source of X-rays; a detector of X-rays, the source being configured to emit at least one beam of X-rays to the detector; and an optic control device configured to control the direction of X-rays emitted by the source such that the X-rays emitted. by the source are substantially parallel to one another,
摘要:
A mammograph is provided. The mammograph includes a source of X-rays; a detector of X-rays, the source being configured to emit at least one beam of X-rays to the detector; and an optic control device configured to control the direction of X-rays emitted by the source such that the X-rays emitted by the source are substantially parallel to one another.
摘要:
A tomosynthesis system for forming a three dimensional image of an object is provided. The system includes an X-ray source adapted to irradiate the object with a beam of X-rays from a plurality of positions in a sector, an X-ray detector positioned relative to the X-ray source to detect X-rays transmitted through the object and a processor which is adapted to generate a three dimensional image of the object based on X-rays detected by the detector. The detector is adapted to move relative to the object and/or the X-ray source is adapted to irradiate the object with the beam of X-rays such that the beam of X-rays follows in a non arc shaped path and/or a center of the beam of X-rays impinges substantially on the same location on the detector from different X-ray source positions in the sector.
摘要:
A method for removing scatter in an image includes acquiring data of an object of interest, and using an iterative equation including a thickness-dependent kernel modulation factor to reconstruct an image of the object.
摘要:
A device for assisting with the handling of an instrument or tool, the device comprising a jointed mechanical structure on a support, wherein an instrument or tool may be attached, motor drives configured to actuate the jointed mechanical structure, according to a number of degrees of freedom of less than that which the structure provides to the instrument or tool, and an automatic control, wherein the automatic control drives the motor drives in order to facilitate the meeting of a constraint on position and/or velocity parameters of the instrument or tool, which constraint the motor drives by themselves, independently of handling by an operator, cannot entirely meet.
摘要:
A system and method for breast imaging using x-ray computed tomography (CT) are provided. One system includes a rotating gantry, an x-ray source coupled to the gantry for generating an x-ray beam and an x-ray detector coupled to the gantry for detecting x-rays of the x-ray beam. The system further includes an adjustable collimator coupled to the x-ray source and configured to adjust a focus of the x-ray beam generated by the x-ray source. The x system also includes a controller configured to control the collimator to adjust the focus on a region of interest (ROI) and to control a beam intensity for the x-ray beam generated by the x-ray source during a scan.
摘要:
In a method for the 3D viewing of tomosynthesis images in mammography, an algorithm is proposed for the viewing of radiology signs in series of 3D data. When the digital volume is being viewed by a practitioner, the disclosed algorithm is used to provide a dynamic indication of the position of the radiology signs on the 3D image by means of markers. The use of dynamic viewing draws the practitioner's attention to the zones of clinical interest. The disclosed algorithm thus highlights all the radiology signs in the 3D image of the breast.
摘要:
A device for medical imaging is provided. The device includes an X-ray acquisition means configured to acquire data representative of an object. The X-ray acquisition means includes; an arm comprising a radiation source; a radiation detector; a planar object support; and a pad. The device further includes an ultrasound probe capable of being shifted manually by a user; a processor configured to produce at least one image of the object from data acquired by the X-ray acquisition means; and determine a path between a position of the ultrasound probe and a position in the object corresponding to a selected zone in said image; and a guide of the ultrasound probe configured to facilitate shifting the ultrasound probe along the path between a position of the ultrasound probe and the position in the object corresponding to the selected zone in the at least one image.
摘要:
An x-ray device comprises means for the production of at least one standard projection image of the object in which presumed suspect zones corresponding to radiological signs are represented by markers. The device comprises means for the production of a digital volume of markers in which 3D markers are created in order to represent presumed suspect zones of the object. It also comprises means of re-projection of the 3D markers in the standard projection image in order to confirm the presence of the markers or eliminate or add the markers of the projection image is necessary.
摘要:
A tomosynthesis system for forming a three dimensional image of an object is provided. The system includes an X-ray source adapted to irradiate the object with a beam of X-rays from a plurality of positions in a sector, an X-ray detector positioned relative to the X-ray source to detect X-rays transmitted through the object and a processor which is adapted to generate a three dimensional image of the object based on X-rays detected by the detector. The detector is adapted to move relative to the object and/or the X-ray source is adapted to irradiate the object with the beam of X-rays such that the beam of X-rays follows in a non arc shaped path and/or a center of the beam of X-rays impinges substantially on the same location on the detector from different X-ray source positions in the sector.