摘要:
Registration of preoperatively acquired MRI images of soft parts to intraoperatively acquired X-ray images of soft parts is not possible. The invention shows a way of nevertheless using such preoperatively acquired images for superimposition with 2D projections of the soft parts, taking an indirect route via 3D/3D registration of images of the spinal column. For this purpose, 3D image data sets of the spinal column must be obtained separately on the one hand using MRI and on the other using the X-ray imaging system so that the 3D/3D registration produces a mapping rule which then also applies to the preoperatively acquired images of the soft part if the soft part images and the spinal images are acquired without intervening change in the patient position in the MRI scanner.
摘要:
The invention relates to a method and a device for marking three-dimensional structures on two-dimensional projection images of an object, with which a position marker is determined on two projection images of the object recorded from different projection directions, from which the position of the position marker in the three-dimensional space is calculated so that further, subsequently recorded projection images can be displayed superimposed by the position marker.
摘要:
Registration of preoperatively acquired MRI images of soft parts to intraoperatively acquired X-ray images of soft parts is not possible. The invention shows a way of nevertheless using such preoperatively acquired images for superimposition with 2D projections of the soft parts, taking an indirect route via 3D/3D registration of images of the spinal column. For this purpose, 3D image data sets of the spinal column must be obtained separately on the one hand using MRI and on the other using the X-ray imaging system so that the 3D/3D registration produces a mapping rule which then also applies to the preoperatively acquired images of the soft part if the soft part images and the spinal images are acquired without intervening change in the patient position in the MRI scanner.
摘要:
The invention relates to an arrangement having a 3D device, the 3D device being embodied for acquiring an objects and generating a 3D acquisition result representing the object at least partially in at least three dimensions. The arrangement also has a 2D device, the 2D device being embodied for acquiring the object and generating a 2D acquisition result representing the object in at least two dimensions. The 2D acquisition result represents the object at least partially, in particular a top view of the object, a view through the object or a section through the objects. The invention is characterized in that the 3D devices and the 2D devices are connected to one another, mechanically electrically, in such a way that a part of the 3D acquisition result corresponding to an object location can be assigned to a part of the 2D acquisition result corresponding to the same object location.
摘要:
Method and apparatus for visually supporting an electrophysiological catheter application in the heart by means of bidirectional information transfer The present invention relates to a method and apparatus for visually supporting an electrophysiological catheter application in the heart. For the method, 3D image data of at least the heart, which is captured using a tomographic 3D imaging method prior to execution of the catheter application, and electroanatomical 3D mapping data of at least one area of the heart to be treated, which is captured during execution of the catheter application, is provided and the electroanatomical 3D mapping data and/or at least part of the 3D image data is displayed during execution of the catheter application. The method is characterized in that, in the electroanatomical 3D mapping data and/or the 3D image data, the contour of one or more areas (3) relevant to the catheter application is captured and transferred to the other system in each case on which the areas (3) are superimposed as a single polyline (5) in the representation (2, 4) of the electroanatomical 3D mapping data and/or 3D image data. The method proposed and the associated apparatus provide the user with a rapid overview of the areas relevant to the catheter application.
摘要:
The invention relates to a method and a device for marking three-dimensional structures on two-dimensional projection images of an object, with which a position marker is determined on two projection images of the object recorded from different projection directions, from which the position of the position marker in the three-dimensional space is calculated so that further, subsequently recorded projection images can be displayed superimposed by the position marker.
摘要:
The invention relates to a method and a medical imaging system for acquisition of image data of the heart using a medical imaging procedure during an intervention on the heart, while the heart is stimulated by a pacing signal from an external heart pacemaker, the acquisition and/or reconstruction of the image data being controlled, in particular triggered, by the pacing signal.
摘要:
The present invention relates to a device and a method for synchronizing an image capture device with a first image data set. The image capture device is used for recording a second image data set of a periodically moving area or object. Each first image data set contains information as to the point in time, relative to the periodically moving area or object, when recording took place. The device additionally acquires periodically recurring, current information of the area as well as information concerning the recording instant of the first image data set. From the periodically recurring information and the recording instant of the first image data set, a triggering instant is derived which controls at least one recording of the second image data set by the image capture device in such a way that the second image data set contains image data synchronized to the first image data set.
摘要:
The invention relates to a method and a device for the combined representation of a series of 2D fluoroscopic images of the beating heart with a static 3D image data set of the same heart. The fluoroscopic images are registered with the 3D image data set and from this a 2D pseudo-projection on to the image plane of each fluoroscopic image generated in each case. This is then represented with the associated fluoroscopic image overlaid. The method is characterized in that the pseudo-projection is represented differently in each case or is not represented depending on the interval of the cardiac phase of the currently represented fluoroscopic image relative to the cardiac phase of the 3D image data set.
摘要:
The invention relates to a method and a medical imaging system for acquisition of image data of the heart using a medical imaging procedure during an intervention on the heart, while the heart is stimulated by a pacing signal from an external heart pacemaker, the acquisition and/or reconstruction of the image data being controlled, in particular triggered, by the pacing signal.