The present invention relates to acquisition of medical image information of an object. In order to provide a user-friendly alignment of X-ray tube and a detector, optionally combined with an anti-scatter grid, an alignment arrangement is proposed, which comprises a tube attachment with a first light projection device and a detector attachment with a second light projection device. The first and second light projection devices each generate a light pattern on a projection surface. The tube attachment and the detector attachment can be brought into a correct spatial arrangement relative to each other by bringing the first light pattern in a predetermined spatial relation with the second light pattern on the projection surface.

This document relates to technologies of projecting an incision marker onto a patient using a movable gantry carrying a medical imaging system and at least one laser which is adjustable relative to the gantry. The medical imaging system is used for capturing a fluoroscopic or x-ray image of at least a part of the patient from a viewing direction. Then a virtual marker is set in the captured image in order to indicate a point or region of interest, for example as a point or at least one line of an incision. Then the laser is used to indicate, from a projection direction different from the viewing direction, the point or region of interest onto the surface of the patient, thus making the point or region of interest visible from the outside.

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.

A method and positioning system for determining a region to be examined in a subject on a movable support of a medical imaging system. The method includes: a) manually specifying the region by positioning a predetermined marker object in relation to the subject; b) acquiring the position of the marker object by an acquisition apparatus; c) projecting or displaying a feedback marking by a projection apparatus at the acquired position on the subject, wherein the position of the marker object and the acquired position are adjustable; d) calculating a scan position of the movable support on the basis of the acquired position by means of a computer unit, wherein in the scan position, the region to be examined is arranged in an acquisition region of the imaging system; and e) automatically moving the movable support into the scan position with a motor.

A method and a device are disclosed for controlling a scanning region of a medical imaging system for subsequent recording of a region of interest of an examination object. Depth image data of the examination object are captured. 2-D image data of at least one 2-D image of the examination object are created and the 2-D image is displayed. The 2-D image data and the depth image data of the examination object are registered to each other at least in some regions. By using the 2-D image, at least one limit position of the scanning region is then determined. Finally, on the basis of the depth image data and the limit position in the 2-D image of the examination object, a limit contour line extending through the limit position is determined and displayed such that the limit contour line is superimposed on the 2-D image of the examination object.

In a method to control a medical apparatus of an installation having: a contact device for a patient, at least one electrical potential sensor that can be coupled to the body of said patient is integrated into the contact device. A signal evaluation device is provided with measurement signals generated with the electrical potential sensor for evaluation. The medical apparatus is connected with the signal evaluation device, and measurement signals that relate to the breathing and/or cardiac activity of the patient are acquired with the at least one electrical potential sensor coupled to the body of said patient upon contact of the patient with the contact device. Trigger signals are generated with the signal evaluation device based on the measurement signals that relate to the breathing cycle and/or the cardiac cycle of the patient. Operation of the medical apparatus is controlled based on the trigger signals.

An imaging system (10) and related method, where a marker detection system (MDS) detects one or more markers (MK) spatially arranged in association with an area (A). If the marker detection system (MDS) detects that the area (A) is within a field-of-view (FoV) of the imaging system (10) or is at least within a predefined distance thereof, a control signal is issued in respect of said area (A) to an image acquisition system (ACS) of the imaging system (10). The area (A) may be one of a hand (32) of a human operator or a part of a patient (12) to be imaged.

A method for improving the accuracy of a digital medical model of a part of a patient, the method includes obtaining a set of at least 2 medical images of the patient, where an element including a predefined geometry and/or predefined information was attached to the patient during the recording of the medical images; obtaining at least 2 tracking images taken with at least one camera having a known positional relationship relative to the medical imaging device, the tracking images depicting at least part of the element; determining any movement of the element between acquisition of the at least 2 tracking images; and generating the digital medical model from the acquired medical images, wherein the determined movement of the element is used to compensate for any movement of the patient between the acquisition of the medical images.

A surgical positioning system is provided that includes a dimensioned grid having a plurality of dimensioned radio-opaque lines corresponding to surgical variables and a substrate connected to or integral with the grid. This system is used to obtain subject specific data from an image of a subject obtained during a surgical procedure by following the steps of: providing a grid having a plurality of dimensioned radio-opaque lines relating to surgical variables; placing the subject on a substrate; and obtaining subject specific data from an image of said subject. This invention relates to an apparatus made of a grid having a plurality of dimensioned radio-opaque lines relating to surgical variables and a sealable container sized to receive the dimensioned grid.

Optical geometry calibration devices, systems, and related methods for x-ray imaging are disclosed. An optical-based geometry calibration device is configured to interface with a two-dimensional (2D) imaging device to perform three-dimensional (3D) imaging. The optical-based geometry calibration device includes one or more optical cameras fixed to either an x-ray source or an x-ray detector, one or more markers fixed to the x-ray detector or the x-ray source, with each of the one or more optical cameras being configured to capture at least one photographic image of one or more corresponding optical markers when each x-ray image of the object is captured, and an image processing system configured to compute positions of the x-ray source relative to the x-ray detector for each 2D projection image based on the at least one photographic image of the one or more markers