Method and device for sampling tissue during a radiological examination
AssigneeGE Medical Systems Global Technology Company, LLC
InventorsSerge Muller, Andreas Rick
Life of this patent
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Abstract
A method and device for sampling a fragment of tissue in which a contrast medium is injected into an organ to be examined and highlights parts containing that contrast medium in an image obtained by emitting a beam of X-rays. At least one pair of radiographic images is captured from a first position and a second position of an X-ray emitter during a phase of increasing attenuation due to the contrast medium. A specific area is identified from the pair of images in which a tissue fragment is to be sampled. The images of the pair of images are combined to determine the three-dimensional coordinates of the specific area.
Claims33
A method of sampling a fragment of tissue, comprising:
- (a) injecting a contrast medium into an organ to be examined;
- (b) obtaining at least one pair of radiographic images from a first position and a second position by a radiation emitter during a phase of increasing attenuation due to the contrast medium;
- (c) identifying a specific area from the pair of images in which the fragment is to be sampled;
- and
- (d) combining the images of the pair of images to determine the three-dimensional coordinates of the specific area.
A device for sampling a fragment of tissue, which device is disposed on a radiographic apparatus, the apparatus comprising:
- (a) means for emitting radiation in a direction of an organ under study from at least two different positions;
- and
- (b) means for receiving the radiation after it has passed through the organ under study to provide an image of the radiation;
- (c) the device comprising a fixed surface on the same side of the organ as the means for receiving;
- (d) a bearing plane on the opposite side of the organ to the means for receiver (9);
- and
- (e) means for sampling the fragment disposed on means for positioning movable in three different directions on the side of the organ opposite the means for receiving.
A device for sampling an object, which device can be disposed on a radiographic apparatus, the apparatus including means for imaging the object to be studied, comprising:
- (a) a surface on one side of the object as the means for imaging;
- (b) a bearing plane on an opposite side of the object to the means for imaging;
- (c) means for positioning the device in multiple directions;
- and
- (d) means for sampling disposed on the means for positioning on the side of the object opposite the means for imaging.
Dependencies are inferred from the claim text.