Brainlab Ag

Siemens Aktiengesellschaft

Armin Fürst

Kajetan Berlinger

Stephan Erbel

Franz Fadler

Reiner Franz Schulz

Robert Fasbender

Burkhard Groh

Kaiss Shanneik

The invention relates to a method for determining the position of an object moving within a body, wherein the body is connected to markers, a movement signal is determined based on the measured movement of the markers, images are taken from the object using a camera or detector, wherein the camera or detector is moved with respect to the object, it is determined from which direction or range of angles or segment the most images corresponding to a predefined cycle of the movement signal are taken, and using at least some or all of the images of the segment containing the most images for a specified movement cycle, an image of the object is reconstructed.

Detection of the position of a moving object and treatment method

The present invention relates to a determination method that enables the position of a body part subject to vital movement to be determined, wherein the body part is to be irradiated. A region of an analytical image is determined, wherein the region represents a body part subject to vital movement, in particular a tumor in an anatomical body. A change in position from one analytical image to the next is performed that reflects the vital movement, wherein the body parts subject to vital movement are parts of the body that are to be irradiated or are not to be irradiated and that move as a result of vital functions such as respiration and/or heartbeat even when the anatomical body is otherwise kept deliberately at rest.

Determination of regions of an analytical image that are subject to vital movement

An imaging apparatus for irradiating an object includes a source arrangement, from which x-rays from different positions that form an at least one-dimensional structure may be emitted. The imaging apparatus also includes a detector arrangement for detecting the x-rays. An object is positioned between the source arrangement and the detector arrangement so that, with the detector arrangement, the x-rays attenuated by the object are recorded. The imaging apparatus also includes an evaluation apparatus for evaluating the signals recorded by the detector arrangement. A region of the detector arrangement is assigned to different positions of the structure, from which x-rays are directed at the region in partial irradiations. The region is aligned relative to the structure, such that the partial irradiations that are produced from the different positions of the structure with a region of the detector develop a radiation geometry that irradiates the object in a planar fashion.

Imaging apparatus

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Kirchheim, Germany

Armin Fürst