A method for repositioning a mobile imaging system includes: a) capturing an image recording of at least one optical marker as a reference variable which is disposed close to an examination and/or treatment area of an object, b) capturing the image recording direction as a further reference variable, c) wherein the capturing mobile imaging system is in a predefined position and/or alignment suitable for image recording, d) detecting a changed and/or non-capturable position of the at least one optical marker and/or a changed and/or non-capturable image recording direction, and e) repositioning the mobile imaging system using a comparison of the reference variables from a) and b) with the respectively corresponding reference variables from d). An image capturing unit and an optical marker are also provided.

A radiation system includes a first ring, a radiation source capable of providing radiation suitable for treating a patient, the radiation source secured to the first ring, a second ring located behind the first ring, and an imager secured to the second ring. A radiation system includes a first device having a radiation source capable of generating a radiation beam suitable for treating a patient, and a second device having imaging capability, wherein the first device is oriented at an angle that is less than 180° relative to the second device. A radiation system includes a structure having a first opening, a radiation source rotatably coupled to the structure, an imaging device rotatable relative to the structure, and a processor for controlling a rotation of the radiation source and a rotation of the imaging device, wherein the radiation source is rotatable relative to the imaging device.

An X-ray imaging apparatus is 100 provided. The X-ray imaging apparatus (100) comprising: an X-ray source unit (101) including an X-ray source for emitting an X-ray beam, the X-ray source unit being movable such that the X-ray beam to be emitted is movable along an axis (X); an X-ray detecting unit (102) comprising an X-ray detector (12) for detecting the X-ray beam, the X-ray detecting unit (102) being movable along the axis (X); and a control unit (105) adapted to control the movement of the X-ray detecting unit (102) in response to a movement of the X-ray source unit (101); wherein the X-ray source unit (101) further includes a laser for emitting a laser beam (La) for indicating a center of the X-ray beam along the axis (X); the X-ray detecting unit (102) further comprises a plurality of sensors (104) arranged along the X-axis (X), each of the plurality of sensors (104) being configured to sense the laser beam (La) and to generate a sensor signal (S, S2, S3, S4, S) indicative of its sensing of the laser beam (La); and the control unit (105) is adapted to control the movement of the X-ray detecting unit (102), based on the sensor signals (S, S2, S3, S4, S) generated by the plurality of sensors.

An X-ray imaging apparatus is 100 provided. The X-ray imaging apparatus (100) comprising: an X-ray source unit (101) including an X-ray source for emitting an X-ray beam, the X-ray source unit being movable such that the X-ray beam to be emitted is movable along an axis (X); an X-ray detecting unit (102) comprising an X-ray detector (12) for detecting the X-ray beam, the X-ray detecting unit (102) being movable along the axis (X); and a control unit (105) adapted to control the movement of the X-ray detecting unit (102) in response to a movement of the X-ray source unit (101); wherein the X-ray source unit (101) further includes a laser for emitting a laser beam (La) for indicating a center of the X-ray beam along the axis (X); the X-ray detecting unit (102) further comprises a plurality of sensors (104) arranged along the X-axis (X), each of the plurality of sensors (104) being configured to sense the laser beam (La) and to generate a sensor signal (S, S2, S3, S4, S) indicative of its sensing of the laser beam (La); and the control unit (105) is adapted to control the movement of the X-ray detecting unit (102), based on the sensor signals (S, S2, S3, S4, S) generated by the plurality of sensors.

An X-ray apparatus includes a C-arm for adjusting a position of an X-ray source; a table on which an object is positioned; a data obtaining unit for obtaining position information of a target in the object; and a control unit for moving at least one of the C-arm and the table to allow tracking of the target based on the position information when capturing an X-ray image.

Proposed is a medical imaging system including: a C-arm including an X-ray source and a detector; a first plate installed on an X-ray path between the X-ray source and the detector, and including a first transmissive surface provided with a plurality of first ball markers blocking an X-ray, and a first optical marker; a second plate installed on the X-ray path between the X-ray source and the detector, and including a second transmissive surface provided with a plurality of second ball markers blocking the X-ray, and a second optical marker; a reference optical marker configured to provide a 3D reference coordinate system; an optical tracking device configured to recognize locations of the first and second optical markers and the reference optical marker; and a matcher configured to calculate a matching relationship between coordinates on a 3D reference coordinate system and locations on first and second captured images.

The field of view of an X-ray imaging system should be set appropriately to ensure that anatomical information of interest is not omitted. In particular, it is necessary to ensure that the operator of an X-ray system does not allow a patient to leave the X-ray imaging system until it is certain that the correct anatomy has been imaged. This application discusses a technique enable the visualization of a field of view boundary error caused by the incorrect configuration of an X-ray imaging system. Optionally, the boundary error is displayed either on a user display of a system console, or by projecting the field of view error onto the patient in the X-ray system. Thus, an operator of the system may be alerted to the presence of a boundary error, enabling a new X-ray exposure to be taken, if necessary.

The field of view of an X-ray imaging system should be set appropriately to ensure that anatomical information of interest is not omitted. In particular, it is necessary to ensure that the operator of an X-ray system does not allow a patient to leave the X-ray imaging system until it is certain that the correct anatomy has been imaged. This application discusses a technique enable the visualization of a field of view boundary error caused by the incorrect configuration of an X-ray imaging system. Optionally, the boundary error is displayed either on a user display of a system console, or by projecting the field of view error onto the patient in the X-ray system. Thus, an operator of the system may be alerted to the presence of a boundary error, enabling a new X-ray exposure to be taken, if necessary.

The present invention relates to user guiding during X-ray imaging. In order to provide further guidance during X-ray imaging, a guiding device (10) for visual guidance during X-ray imaging is provided. The guiding device (10) comprises a camera arrangement (12), a display arrangement (14) and a housing structure (16). The housing structure comprises a housing (18) of an X-ray imaging system for housing an X-ray source or an X-ray detector. Further, the camera arrangement is configured to capture image data of a region of interest of a subject in front of the housing. Furthermore, the display arrangement is configured to present the captured image data as a live presentation of the region of interest. Still further, the camera arrangement is mounted to the housing on a first side (20) of the housing, and the display arrangement is mounted to the housing on a second side (22) of the housing, the second side being at least one of the group of lateral and opposite to the first side. Hence, the display arrangement is configured to provide a presentation comprising live images from the first side to a user located on the second side of the housing.

The present invention relates to user guiding during X-ray imaging. In order to provide further guidance during X-ray imaging, a guiding device (10) for visual guidance during X-ray imaging is provided. The guiding device (10) comprises a camera arrangement (12), a display arrangement (14) and a housing structure (16). The housing structure comprises a housing (18) of an X-ray imaging system for housing an X-ray source or an X-ray detector. Further, the camera arrangement is configured to capture image data of a region of interest of a subject in front of the housing. Furthermore, the display arrangement is configured to present the captured image data as a live presentation of the region of interest. Still further, the camera arrangement is mounted to the housing on a first side (20) of the housing, and the display arrangement is mounted to the housing on a second side (22) of the housing, the second side being at least one of the group of lateral and opposite to the first side. Hence, the display arrangement is configured to provide a presentation comprising live images from the first side to a user located on the second side of the housing.