Abstract:
A medical imaging system having an X-ray image acquisition device, a plurality of proximity sensors located at components of the X-ray image acquisition device and a processing unit is able to prevent unintended X-ray radiation to an object in a field of irradiation. For this purpose, the processing unit is configured for determining temporal differences of distance information delivered by the proximity sensors, for generating reference distance information based on acquired distance information with an X-ray source, an X-ray detector and the patient support in fixed positions, for filtering out reference distance information from the acquired distance information and for generating a signal in case temporal differences are determined exceeding a predetermined threshold.
Abstract:
A system is suggested comprises a main tracking device and a processing unit. The main tracking device includes a plurality of light sources and a plurality of light detectors. On the basis of light pulses, the main tracking device is configured to determine a current 3D position of a plurality of objects in a room. The processing unit is configured to process image information of each of the objects together with the position information so as to generate a visualization of the image information of the objects in spatial relation to each other.
Abstract:
A system is suggested comprising an optical sensing means and a processing unit. The optical sensing means may include an optical guide with a distal end, wherein the optical guide may be configured to be arranged in a device to be inserted into tissue in a region of interest. The processing unit may be configured to receive information of a region of interest including different tissue types as well as of a path through the tissues, to determine a sequence of tissue types along the path, to determine a tissue type at the distal end of the optical guide based on information received from the optical sensing means, to compare the determined tissue type with the tissue types on the path, to determine possible positions of the distal end of the optical guide on the path based on the comparison of tissue types, and to generate a signal indicative for the possible positions.
Abstract:
The present invention relates to ventricular drain placement. In order to provide improved guidance in ventricular drain placement for emergency situations, a guiding device (10) for emergency ventricular drain placement is provided comprising an image data input (12), a data processor (14) and an output interface (16). The image data input provides optical sensor-based image data of a head of a subject. The data processor generates an optical shape of the head based on the image data and provides a plurality of datasets of heads with different head shapes, wherein each dataset comprises a spatially assigned trajectory for a ventricular drain placement for the respective head shape. The data processor maps the generated optical shape of the head with at least two of the head shapes of the plurality of datasets and determine a best matching head shape of the dataset and further selects the respective assigned trajectory. The output interface provides a projection of the selected assigned trajectory in spatial relation to the head of the subject as adapted guiding path for ventricular drain placement for the subject based on the mapping of the generated optical shape of the head and the determined best matching head shape.
Abstract:
The present invention relates to guidance during a medical intervention. In order to provide an improved navigation support with a facilitated setup, a system (10) for navigation support is provided. An image data input (12) receives a plurality of acquired 2D X-ray images of a subject's body from different angles. A set of markers, which are visible in X-ray images and which are detectable by a navigation system, is assigned to the subject. A marker detecting arrangement (16) is provided that detects a current spatial location of the markers assigned to the subject. A data processor (14) reconstructs a 3D volume of the subject based on the plurality of 2D X-ray images. At least a part of the markers is arranged outside the volume covered by the reconstructed 3D volume of the subject, while the markers are visible in the 2D X-ray images. The data processor (14) identifies the markers in the 2D X-ray images based on image data of the plurality of 2D X-ray images outside the 3D volume and determines a spatial location of the markers in relation to the 3D volume of the subject. The data processor (14) also registers the reconstructed 3D volume of the subject to a current spatial position of the subject based on the detected current spatial location of the markers and the determined spatial location of the markers in relation to the 3D volume of the subject. An output interface (18) provides the registered reconstructed 3D volume for navigation.
Abstract:
The invention relates to a protection system (10) and a method for protecting a staff member (6) against X-ray scatter radiation, an X-ray system and a computer readable medium having stored a computer program element for controlling such system. The protection system (10) comprises a location unit (20), and a determination unit (30). The location unit (20) is configured to detect the position of a shielding device (3) and the position of the staff member (6) to be protected. The determination unit (30) is configured to determine an origin (5) of potential X-ray scatter radiation and to determine if the shielding device (3) is positioned to protect the staff member (6) to be protected based on the origin (5) of potential X-ray scatter radiation, the position of the shielding device (3) and the position of the staff member (6).