摘要:
A method for operating an imaging system, and a system, apparatus, and computer-readable medium, that operate in accordance with the method. The method includes providing field-of-view (FoV) information, and automatically selecting at least one recording sequence based on at least one of a particular diagnostic application of interest and the FoV information.
摘要:
The invention relates to a method for creating a virtual dental image from a 3D volume (1) comprising volumetric image data. Firstly, a sub-volume (8, 12, 15, 18) of the 3D volume (1) is defined and then a virtual projection image (30, 41) is generated for said sub-volume (8, 12, 15, 18) from a specific X-ray imaging direction (11) by computation of the volumetric image data in said X-ray imaging direction (11).
摘要:
A method for creating a tomographic image in the manner of a dental X-ray panoramic tomographic image from a digital 3D volume exhibiting X-ray absorption values, comprising transradiating the 3D volume forming an object to be scanned virtually using a virtual X-ray source, recording the virtually produced image by a virtual detector, and moving the virtual source of X-rays and virtual detector virtually past the object to be scanned with formation of a sharp layer having a blurred area.
摘要:
In a method for the creation of a dental 3D radiograph of at least a subregion, forming a volume, of an object using an X-ray apparatus, the volume is recorded as a 3D radiograph from a plurality of projected images during a revolution around the object. At least a part of the object is displayed in a graphical representation before the radiograph of the volume is created, the position of the graphical representation relative to the current position of the apparatus and the patient being known. The volume to be radiographed, governed by the positioning of the object relatively to the apparatus and by the choice of the settings data and/or control data, is placed in the graphical representation in an at least approximately correct position, and when there is a change in position and/or size of the volume to be radiographed within the graphical representation, the settings data and/or control data for the creation of the 3D radiograph are defined.
摘要:
A method for creating a tomographic image in the manner of a dental X-ray panoramic tomographic image from a digital 3D volume exhibiting X-ray absorption values, comprising transradiating the 3D volume forming an object to be scanned virtually using a virtual X-ray source, recording the virtually produced image by a virtual detector, and moving the virtual source of X-rays and virtual detector virtually past the object to be scanned with formation of a sharp layer having a blurred area.
摘要:
The invention relates to a method for the creation of a panoramic tomographic image of an object (10) by means of X-rays, in which a digital X-ray-sensitive image detector (14) is moved relatively to the object to be X-rayed (10) and image data of the object (10), for a first layer (15) of the object (10) are summated to a first storage area (21.1), wherein the summation is carried out after a predefined first time interval (Δt1) with a predefined first line offset (Δs1). Image data for a second layer (16) of the object (10) are summated to a second storage area (21.2), which summation is performed after a predefined second time interval (Δt2) with a predefined second line offset (Δs2). The invention further relates to a digital X-ray image acquisition device (1) for the creation of panoramic tomographic images of an object (10), comprising an X-ray-sensitive image detector (14), a first and second storage area (21.1, 21.2) for storing data, and a first and second linker (20.1, 20.2) for linking image data.
摘要:
The invention relates to a magnetic field unit (1) of an MRI system (18) for image capturing a head region as the region to be recorded, comprising at least one permanent magnet (2) for generating a main magnetic field, a device (3) for generating a gradient field, and at least one coil (4) for generating and receiving radio frequencies. The magnetic field unit (1) is fastened to a mounting (19) such that a longitudinal axis (A) of the magnetic field unit (1), together with a vertically extending axis, forms an angle of no more than +45° and that the magnetic field unit (1) and the patient (P) can be adjusted relative to each other such that the magnetic field unit (1) can be moved to a position surrounding the head of the patient (P).
摘要:
In a method for the creation of a dental 3D radiograph of at least a subregion, forming a volume (42, V1, V2), of an object (14) using an X-ray apparatus (1), said volume can be recorded as a 3D radiograph from a plurality of projected images during a revolution around said object.At least a part of the object (14) is displayed in a graphical representation (40, 71, 72, 73) before the radiograph of the volume (42, V1, V2) is created, the position of the graphical representation (40, 71, 72, 73, 74) relative to the current position of the apparatus and the patient being known. The volume (42, V1, V2) to be radiographed, governed by the positioning of said object (14) relatively to the apparatus and by the choice of the settings data and/or control data, is placed in said graphical representation (40, 71, 72, 73, 74) in an at least approximately correct position, and when there is a change in position and/or size of the volume to be radiographed (42, V1, V2) within the graphical representation (40, 71, 72), the settings data and/or control data for the creation of the 3D radiograph are defined.
摘要:
The invention relates to a dental X-ray system for the creation of a radiograph (13), comprising an imaging unit (5) for surface detection. The imaging unit (5) has a light source (6), which produces a polychromatic beam of visible light (6′), a masking edge (7), which extends at least partially into the polychromatic beam of light (6′) between the light source (6) and the recording area (19) for the purpose of creating a shadow demarcation line (17) in said recording area (19), and an optical detector (8), wherein the light source (6), the masking edge (7) and the optical detector (8) are mounted directly on the supporting device (2) and/or on the X-ray source (3) and/or on the X-ray detector (4) and can be moved together therewith past the recording area (19) in circular motion.
摘要:
The invention relates to a method for creating a virtual dental image from a 3D volume (1) comprising volumetric image data. Firstly, a sub-volume (8, 12, 15, 18) of the 3D volume (1) is defined and then a virtual projection image (30, 41) is generated for said sub-volume (8, 12, 15, 18) from a specific X-ray imaging direction (11) by computation of the volumetric image data in said X-ray imaging direction (11).