摘要:
The present invention pertains to a device for detecting the position of radiation target points with an anchoring means for attachment to a patient reference system, especially to a stereotactic immobilization system, e.g., a head ring, and with a labeling means, arranged on the anchoring means, for at least one point of coordinates in various three-dimensional projections, in which case the labeling means consists of several computer-printed surface materials, which plot the point of coordinates in a three-dimensional manner.
摘要:
The present invention relates to a method for determining data referred to as target change data which can be used for performing radiotherapy treatment, the target change data describing information on the change of position of a target included in a body of a patient, the method being performed by a computer and comprising the following steps: acquiring determination rule data describing a rule for mapping an indicator change set to the target change data, the indicator change set being a set which comprises more than one element, the elements of the indicator change set respectively representing information on respective changes of positions of indicators, at least two of the indicators respectively indicating a change of position of different body structures referred to as indicator structures, acquiring set data describing an acquired indicator change set; and determining the target change data based on the determination rule data and the set data by applying the rule for mapping to the acquired indicator change set.
摘要:
A medical tracking system comprising at least two sensor devices which are independently maneuverable and can be positioned in a fixed position relative to targets, each sensor device comprising at least one of an orientation sensor and a position sensor for respectively determining sensor data, the system further comprising a control unit configured to receive and combine the at least two sensor data of the at least two sensor devices in order to determine a relative position between at least two of the at least two sensor devices.
摘要:
The invention relates to a method for correcting MRI image distortion, in which a distortion correction procedure is carried out on an acquired MRI image data set (1) of a body region by graphical data processing, characterised in that: —after the MRI image data set (1) has been acquired, its distortion is determined by carrying out an image registration process for registering the acquired MRI image data set (1) to a previously available, less distorted or undistorted image data set (2) of substantially the same body region; —a transformation is determined from the image registration process; and—by applying the transformation to the MRI image data set (1), its distortion is corrected.
摘要:
A method for computer-assisted medical navigation and/or pre-operative treatment planning includes detecting the current position of a patient or a part of a patient's body and the positions of medical treatment devices or treatment-assisting devices. The detected positional data can be assigned to body structure data, in order to jointly use the body structure data in assignment with the positional data, within the context of assisting the treatment. The body structure data can be used which is obtained based on a three-dimensional generic model, where the model is adapted by two-dimensional data linking with patient-characteristic, two-dimensional detection data.
摘要:
A method and device for reciprocally assigning a spatial position of a patient and/or a part of a patient's body and an acquired, stored patient data set includes producing at least two video image recordings of the patient and/or part of the body from different recording positions via at least one video image source, wherein a three-dimensional position and/or orientation of the video image source relative to a reference coordinate system is known or can be determined. Corresponding tuples of points are identified in the video image recordings, and three-dimensional spatial positions are ascertained and stored from the identified tuples of points. The stored patient data set are matched to a point set of the assigned spatial positions, and a reciprocal assignment or registration of the spatial position of the patient and/or part of the body and the patient data set is determined when the greatest or best match has been achieved.
摘要:
The invention concerns a method for showing three-dimensionally defined fiducial points in a video camera image involving monitoring of a spatial region by at least two cameras which can map invisible light, especially infrared light, and by at least one video camera, computer-assisted analysis of the image data of the cameras, using the three-dimensional data obtained by means of the invisible-light cameras to compute the spatial location of objects located in the monitored spatial region as mapped by the invisible-light cameras, and displaying the fiducial points assigned to the objects together with the video image; the invention also relating to an apparatus for implementing the method or for visually verifying the correct position of an object.
摘要:
The invention relates to a method for registering a patient data set obtained by an imaging process in camera navigation-supported surgical operations, comprising the following steps: producing a patient data set by means of a tomographic scan or an imaging process for the body of the patient or a part thereof, applying at least one marker array, identifiable and trackable in the navigation system, to at least one solid body structure, preferably a bone structure, after the patient has been brought into an operating room and during treatment, in particular after the area to be treated has been exposed, producing one or more x-ray images of the area to be treated by means of an x-ray unit, the spatial position of said images in the navigation system being determined, updating, by means of a computer-assisted assignment, the register of the patient data set with the positional data obtained from the x-ray image, and detecting and re-registering movements or relative movements in the area to be treated by tracking said marker array(s) in the navigation system.
摘要:
A method for assisting in a dental treatment, wherein: a three-dimensional volume data set for the tooth and/or jaw area of a patient is produced by means of an imaging method, for example tomographic imaging; the tooth and/or jaw area is registered and/or referenced by means of a computer-assisted navigation and/or tracking system using the volume data set; instruments and apparatus for treatment are registered and/or referenced relative to said computer-assisted navigation and/or tracking system, and positionally tracked; and wherein said navigation and/or tracking system supplies information for assisting and/or guiding the treatment before, during or after the treatment, by means of an output unit. It further concerns a device for implementing the method and the application of the device for assisting in a dental treatment.