摘要:
A method is disclosed for obtaining a 4D image data record of an object under examination using measured data from a computed tomography system in which projection data are accepted which were acquired by way of the computed tomography system at different imaging time points by way of an helical scan method following the administration of contrast medium to the object under examination). On the basis of the projection data, image data of the object under examination are then reconstructed and linked with the imaging time points to a space/time data record. Then, a parameterized 4D image data model is individualized with adaptation to the space/time data record by varying model parameters. An image processing device and a computed tomography system with an image processing device of this kind are also described.
摘要:
A method is described for controlling an imaging modality. The method includes acquiring data specific to an examination object and automatically selecting a raw data record from a number of raw data records on the basis of the data specific to the examination object. The method further includes producing an image on the basis of the selected raw data record and by using a selected control parameter set. The produced image is then output to a user. Thereafter, a change command of the user is detected, for altering the control parameter set, or detecting a confirmation command for confirming the control parameter set. Next, the control parameter set is changed in accordance with a detected change command. The method then includes repeating the method steps of producing, outputting, detecting and changing with the respectively current, changed control parameter set until a confirmation signal is detected. Finally, image data is acquired by using the current control parameter set when a confirmation command is detected. An apparatus suitable for controlling an imaging modality is also described.
摘要:
In a method and device for medical imaging, a number of input parameters with regard to an image exposure are imported into a controller of the imaging device, that associate a desired image quality with a defined image exposure region. A number of control parameters are determined corresponding to each input parameter. The controller supplies each control parameter to the image acquisition apparatus for acquiring the image exposure of the examination region with the desired local image quality.
摘要:
A method and a tomographic system are disclosed for displaying tomographic records of a patient. In at least one embodiment, the method includes scanning the patient with the aid of a tomographic system having one system axis, determining at least one topogram, calculating three-dimensional image data records including a multiplicity of slice images on a plane or volume data records, and outputting at least one slice image of the patient. In at least one embodiment, the orientation of individual body zones relative to the system axis of the tomographic system is automatically determined from the at least one topogram, and slice images of the body zones are calculated from the three-dimensional image data records, the slice planes of which are at a defined solid angle to the previously determined orientation of the scanned body zones.
摘要:
In a method for simplified positioning of a patient bed positioning information of a measurement position of the patient bed is recorded and retained as a forced stop position. The positioning of the patient bed between the measurement position ensues such that, given a movement of the patient bed from the withdrawn position, the positioning procedure is automatically halted upon reaching the measurement position.
摘要:
A selectable mode of operation is disclosed for an X-ray computer tomograph for producing angiographical images. A patient accommodated on a couch is not moved relative to the measuring system in the z-direction, the entire area to be examined is irradiated at a prescribed first angle of rotation of the measuring system, and the X-ray radiation emerging from the area to be examined is detected isochronously using a matrix detector.
摘要:
In a method for navigation through medical image information, upon selection of a second operating mode, slice images from different slices within a slice image set can be selected by a movement of a control device in the y-direction and slice images from further slice image sets acquired at different acquisition times can be selected by a movement in the x-direction.
摘要:
A medical imaging installation and a method for a medical imaging installation are disclosed for defining a specific position on the surface of an object. In at least one embodiment, the installation has a support apparatus for an object, a device for recording measured data from the object in order to produce an image of the object, a unit for displaying an image obtained from the object, and a device, arranged on the installation in a defined fashion, for projecting a light pattern onto the surface of the object. The light pattern is inserted appropriately into the displayed image of the object in order to define a specific position on the surface of the object.
摘要:
A method and a tomographic system are disclosed for displaying tomographic records of a patient. In at least one embodiment, the method includes scanning the patient with the aid of a tomographic system having one system axis, determining at least one topogram, calculating three-dimensional image data records including a multiplicity of slice images on a plane or volume data records, and outputting at least one slice image of the patient. In at least one embodiment, the orientation of individual body zones relative to the system axis of the tomographic system is automatically determined from the at least one topogram, and slice images of the body zones are calculated from the three-dimensional image data records, the slice planes of which are at a defined solid angle to the previously determined orientation of the scanned body zones.
摘要:
A method and an apparatus are disclosed for checking parameters provided for an examination of a patient with the aid of a contrast medium in a contrast medium injector. The parameters are automatically checked for their medical safety for the patient by taking account of at least one individual datum of the patient with the aid of at least one test criterion, and at least one of a warning signal is output, and/or the operation of the contrast medium injector is stopped when a health risk for the patient is determined.