摘要:
An embodiment of the present invention relates to a device, which can be implanted into a patient, for an in vivo measurement. In an embodiment, the device includes a catheter for guiding a sample of the patient town analysis unit in the device. A measurement result is determined in the analysis unit by analyzing the sample with the aid of a reagent. In an embodiment, the device furthermore includes an interchange chamber, with the aid of which the reagent can be removed from the device or can be inserted into the device. The interchange chamber has a connector allowing removal or insertion of the reagent while the device is implanted.
摘要:
A tip of an elongate device is navigated into a particular tissue volume in order to examine the particular tissue volume in a body and part of the tissue volume is analyzed in real-time by way of a biosensor. In at least one embodiment, in the process, either the biosensor can be arranged on the tip of the device or the device includes a catheter, by which a substance to be analyzed is transported out of the tissue volume from the tip to the biosensor arranged at the proximal end of the catheter.
摘要:
An in vitro method is for diagnosing a tumor disease in a patient. In at least one embodiment, the method includes: (i) determining an IVD marker or an IVD marker panel in at least one biological sample of a patient, wherein the IVD marker has a high sensitivity to the tumor disease, (ii) determining the proportion of patients tested positive due to an adapted reference range of the IVD marker/IVD marker panel, wherein the reference range was adapted such that the number of individuals with false negative tests, the number of individuals with false positive tests and the number of individuals ultimately needing to be subjected to imaging diagnostics to clarify false negative and false positive results are balanced in respect of one another such that tumor screening can be carried out, possibly: (iii) deciding to carry out an imaging method specific to the respective tumor disease for clarifying possible false negative and/or false positive IVD results, or (iv) repeating stages (i) and (ii) after a defined time interval, or (v) carrying out an imaging method for imaging the tumor.
摘要:
Optical diagnosis system for small animal imaging, in which the animal which has been arranged on a bearing plate and treated with an activatable optical contrast medium is irradiated by an excitation source and the resulting fluorescent radiation that is radiated back is detected by a detector system, in which case the bearing plate is designed as a radiation-transparent window (13) for a reference radiation—generated by a second marker of the contrast medium—for the detection of the initial concentration of the inert contrast medium.
摘要:
An X-ray diagnostic device is provided. The X-ray diagnostic device includes a control device that is operable to optimally adjust a radiation of an X-ray emitter for a particular patient, and a measuring device. The measuring device is coupled to the control device. The measuring device is operable to determine a tissue composition of a body part to be examined. The control device is operable to optimally adjust the radiation of the X-ray emitter for the particular patient on the basis of the measured tissue composition.
摘要:
In an imaging method and a tomosynthesis apparatus, a two-dimensional low-energy image of the predetermined volume segment is obtained after administration of a contrast agent, followed by a two-dimensional high-energy image and then a high-energy tomosynthesis of the predetermined volume segment is obtained with a high total radiation dose that is significantly higher than the low radiation dose. The two-dimensional low-energy image is subtracted from the two-dimensional high-energy image to generate a result with which the concentration of the contrast agent is visible. Additionally, in a time interval in which an enrichment or a washing-out of the contrast agent occurs within the predetermined volume segment, a tomosynthesis of the predetermined volume segment is automatically implemented to show the concentration of the contrast agent in the predetermined volume segment.
摘要:
In an imaging method and a tomosynthesis apparatus, a two-dimensional low-energy image of the predetermined volume segment is obtained after administration of a contrast agent, followed by a two-dimensional high-energy image and then a high-energy tomosynthesis of the predetermined volume segment is obtained with a high total radiation dose that is significantly higher than the low radiation dose. The two-dimensional low-energy image is subtracted from the two-dimensional high-energy image to generate a result with which the concentration of the contrast agent is visible. Additionally, in a time interval in which an enrichment or a washing-out of the contrast agent occurs within the predetermined volume segment, a tomosynthesis of the predetermined volume segment is automatically implemented to show the concentration of the contrast agent in the predetermined volume segment.
摘要:
A radiography diagnostic apparatus has a radiation source that emits an x-ray beam, and a protection that is mounted to prevent unwanted body portions of a patient, or operating personnel, from interacting with the x-ray beam.
摘要:
A tomosynthesis apparatus for mammography has an x-ray source for emission of x-ray beams from different directions directed toward a detector, and a compression plate and a support plate arranged in the beam path between the x-ray source and the detector. A breast to be examined is positioned and compressed between the compression plate and the support plate. The compression plate exhibits a concave recess open in the direction of the support plate on the side of the compression plate facing toward the support plate.
摘要:
A measurement system for examining a section of tissue on a patient in which electric current and/or voltages are applied to a patient in at least one location and are measured on the section of tissue to be examined by at least one electrode of a contact surface of the measurement system. As a result, conclusions can be drawn about the interior of the section of tissue to be examined. The electrode is at least partially surrounded by a conductor element for contacting with a potential which deviates from that of the conductor element.