Abstract: A data processing method for calculating the contact position of a medical ultrasound transceiver on the head of a patient, comprising the steps of: a) acquiring ROI data which represent a region of interest (ROI) corresponding to at least a part of a vessel in a vascular structure; b) acquiring contact region data which represent a contact region for the ultrasound transceiver on the head, wherein the contact region corresponds to one or more acoustic windows; c) determining at least one target point in the region of interest; d) determining at least two entry points on the contact region; e) calculating a set of lines which comprises the lines between the two points of each respective possible pair consisting of one entry point and one target point; f) eliminating lines which pass through a bony structure other than the bone immediately beneath the contact region; g) calculating a score for each of the remaining lines; and h) selecting the entry point of the line with the highest score as the contact positi

Abstract: A data processing method for calculating the contact position of a medical ultrasound transceiver on the head of a patient, comprising the steps of: a) acquiring ROI data which represent a region of interest (ROI) corresponding to at least a part of a vessel in a vascular structure; b) acquiring contact region data which represent a contact region for the ultrasound transceiver on the head, wherein the contact region corresponds to one or more acoustic windows; c) determining at least one target point in the region of interest; d) determining at least two entry points on the contact region; e) calculating a set of lines which comprises the lines between the two points of each respective possible pair consisting of one entry point and one target point; f) eliminating lines which pass through a bony structure other than the bone immediately beneath the contact region; g) calculating a score for each of the remaining lines; and h) selecting the entry point of the line with the highest score as the contact positi

Abstract: A medical navigation system, comprising at least one laser scanner, at least one marker and a processing unit, wherein a laser scanner comprises a laser for generating a laser beam and a laser positioning unit for varying the direction of the laser beam in at least one dimension, wherein a marker comprises a detector for the laser beam and is configured to send an information signal to the processing unit when the laser beam hits the detector, and wherein the processing unit is configured to calculate the location of a marker from the information signal sent by the marker.

Abstract: The invention relates to a method for displaying image data of a part of a patient's body, in which the part of the patient's body comprising regions which are provided with a radiation-emitting contrast agent is detected in a first step by means of a detection device, wherein during the first step, the intensity of the radiation emitted by the regions provided with the contrast agent is higher than the intensity of other radiation which can be detected by the detection device and which is emitted by the detected part of the patient's body, wherein a patient image data set is produced on the basis of the detected radiation, and wherein the patient image data set is displayed to a user by means of an output device in a second step.

Abstract: The present application relates to a medical data method for updating a status of at least one object which relates to a medical applicability of the at least one object, including the following steps: preparing object data which describes location data and the status of the at least one object; preparing change data which relates to changes in the status of the at least one object; wherein the status of the at least one object is updated on the basis of a comparison between the object data and the change data.

Abstract: The present invention relates to a method for determining and/or identifying a change in the position of a part of a body structure relative to a marker device by means of a data processing device, comprising the steps of: providing pre-operative data of the body structure which comprises information concerning the pre-operative position of the part of the body structure relative to the marker device; providing intra-operative data of the body structure which comprises information concerning the intra-operative position of the part of the body structure relative to the marker device; and in order to determine whether a change in position has occurred, automatically determining—on the basis of the pre-operative position of the part and the intra-operative position of the part—whether the position of the pre-operative part differs from the position of the intra-operative part and/or automatically displaying the pre-operative position of the part and the intra-operative position of the part, such that a diffe

Abstract: The patent discloses a method and device for measuring the speed of sound of ultrasound waves used in a sonographic examination of a patient's body structure. Marker devices are attached to an ultrasound probe and to an ultrasound reflecting body structure such that the distance traveled by the ultrasound waves can be determined by a navigation system. Using this distance and the transit time of the ultrasound waves, the measured speed can be calculated. The calculated speed of sound may then be used to accurately scale the ultrasound images.