Abstract:
With a method for supporting an interventional medical operation, a 3-dimensional image data set is recorded before the method. A positioning system is coupled with the coordinates system of the 3-dimensional image data set. The instrument is positioned and the position of the instrument in the 3-dimensional image data set is determined as an instrument image data point. Two further target image data points are determined in the target region, in which the instrument is to be guided. A plane is defined in this way. In this plane, the image data is used for a 2-dimensional display. Both the instrument image data point and also the two target image data points can be identified on the display, so that the target region of an interventional operation and an interventional medical device are displayed on an image at the same time. The image can be tracked during the interventional medical operation.
Abstract:
The invention relates to a temperature probe for insertion into the human or animal body, having an unfoldable balloon on a catheter, on the outer skin of which balloon one or more temperature sensors is or are disposed. The catheter can be moved by way of a cable and according to one aspect of the invention an ultrasound sensor is disposed on its tip. Position sensors can also be provided on the outer skin of the balloon. The temperature probe is used to monitor the temperature distribution in the esophagus during a catheter ablation.
Abstract:
The invention relates to a method for providing a 3D x-ray image data record of a patient, in particular of the heart, by an x-ray imaging system connected to a measuring facility which monitors the breathing phases of the patient. The x-ray image system is automatically activated repeatedly when a predetermined breathing phase is reached and an image acquisition operation is carried out, during which a plurality of 2D x-ray images are recorded. An individual 3D image data record is reconstructed from the 2D x-ray images of each image acquisition operation and the different 3D image data records are registered in pairs in order to assign them in a correct positional and dimensional arrangement. Registration parameters are obtained during the registration. The 3D image data record is reconstructed from 2D x-ray images from all image acquisition operations using the registration parameters.
Abstract:
The invention relates to a method and a device for registering 2D projection images of an object relative to a 3D image data record of the same object, in which, from just a few 2D projection images, a 3D feature contained in an object, which is also identifiable in the 3D images, is symbolically reconstructed. The 3D feature obtained in this way is then registered by 3D-3D registration with the 3D image data record.
Abstract:
The invention relates to a mapping catheter for determination of data of an area of an organ embodied as a flat surface, especially of the heart, to be presented graphically, with at least one thermosensor essentially aligned in the direction of the longitudinal axis of the mapping catheter for determination of temperature-related data which is arranged at a tip of the mapping catheter being provided in the distal area of the mapping catheter for introduction into the organ.
Abstract:
A method and a device for visually assisting a catheter application on the heart of a patient using an image of the patient obtained by a C-arm X-ray device and using electroanatomical mapping data of the patient obtained by an electromagnetic position detection system and mapping system. The C-arm X-ray device and the electromagnetic position detection system and mapping system are calibrated in relation to each other, by determining a co-ordinate transformation between a co-ordinate system assigned to the C-arm x-ray device and/or a co-ordinate system assigned to the image generated by the C-arm X-ray device and a co-ordinate system assigned to the electromagnetic position detection system and mapping system. The position of the patient is determined during the detection of the image and/or during the detection of the electroanatomic mapping-data and is at least indirectly assigned to the image and/or the electroanatomic mapping-data.
Abstract:
The device according to the invention ensures accurate and in particular sensitive navigation of the probe, which can be inserted into a body, despite the fact that the remote control uses simple means, by means of a movement (MR;MB;MP) corresponding intuitively to the navigation of a probe using the control device (1). Intuitive operation can be converted in particular using an inventive U-shaped embodiment of the control device (1). Sensitive controllability can be increased by transmitting the mechanical interaction between the probe and an environment under examination to the control device (1) and thus directly to the operating hand (3) by means of inventive feedback.
Abstract:
Disclosed herein is a method, and system (1) for implementing same, to compensate for patient motion in series recordings in medical imaging, in which a plurality of images of an examination area of a patient (17) are recorded at time intervals with an imaging system (1) and related to each other. Before the start of the series recordings a 3D image data set is recorded by a 3D recording of the examination area, which establishes a reference system. A first spatial position of the examination area in the reference system is obtained by recording a first image of the series recordings and then registering it or by calculating it. Each further image of the series recordings is registered immediately after recording to obtain the current spatial position of the examination area. Differences in spatial position are compensated for at least approximately by changing geometric relationships of the imaging system (1).
Abstract:
Method for the provision and use of configuration files for configuring technical devices.The present invention relates to a method for the provision and use of configuration files containing essential configuration data for configuring technical devices. With the method the configuration data is uploaded by one or more participants in the method via a network onto a server and downloaded by users of the technical devices as configuration files from the server via the network. When a configuration file is downloaded by a user or when a downloaded configuration file is used by a user to configure a technical device, the participant who uploaded the configuration data of the downloaded or used configuration file onto the server receives a reimbursement. The present method simplifies the configuration of units for the users of technical devices and represents an incentive for experienced users to make the configurations they have created themselves also available to other users.
Abstract:
The present invention relates to a method for determining the position of an instrument in a structure of an object with an x-ray system, in which a 3D image data record is provided for at least one area of the object relevant for determining the position, the x-ray system is registered with the 3D image data record, after the introduction of the instrument into the structure at least one 2D x-ray image of the relevant area is recorded from at least one direction of projection with a known projection geometry with the x-ray system and a 2D position of a first location of the instrument is recorded in the 2D x-ray image. In the method a projection line in accordance with the known projection geometry is placed through the 3D image data record at the 2D position and a 3D position of the first location of the instrument in the 3D image data record is determined from an intersection of the projection line with the structure. The method enables the 3D position to be determined with a simple monoplanar x-ray system.