Abstract: The present invention relates to a combined imaging detector (10, 20) for detection of gamma and x-ray quanta comprising an integrating x-ray detector (11) comprising a first scintillator layer (12) and a photodetector array (13) and a second structured scintillator layer (14), optionally as part of a second gamma detector having a second photodetector array. The combined imaging detector can be used for X-ray and SPECT detection and uses the principle of current flat x-ray detectors. Different resolutions are used: high spatial resolution for x-ray imaging and low spatial resolution for SPECT imaging.

Abstract: An X-ray detector is positioned relative to an X-ray source such that at least a part of a region between the X-ray source and the X-ray detector is an examination region for accommodating an object. The X-ray source and X-ray detector are controlled by a processing unit in order to operate in a first imaging operation mode, a second imaging operation mode, and/or a third imaging operation mode. The detector comprises a first scintillator, a second scintillator, a first sensor array, and a second sensor array. The first scintillator is disposed over the second scintillator such that X-rays emitted from the X-ray source first encounter the first scintillator and then encounter the second scintillator.

Abstract: The present invention relates to a system for X-ray imaging It is explained to position (210) an X-ray detector (10) relative to an X-ray source such that at least a part of a region between the X-ray source and the X-ray detector is an examination region for accommodating an object. The X-ray source and X-ray detector are controlled (220) by a processing unit in order to: operate (230) in a first imaging operation mode; or operate (240) in a second imaging operation mode; or operate (250) in the first imaging mode and in the second imaging mode; or operate (260) in a third imaging operation mode. The detector comprises a first scintillator (20), a second scintillator (30), a first sensor array (40), and a second sensor array (50). The first sensor array is associated with the first scintillator. The first sensor array comprises an array of sensor elements configured to detect optical photons generated in the first scintillator. The second sensor array is associated with the second scintillator.

Abstract: The invention relates to a combined imaging detector for detection of gamma and x-ray quanta comprising an x-ray detector (31) for generating x-ray detection signals in response to detected x-ray quanta and a gamma detector (32) for generating gamma detection signals in response to detected gamma quanta. The x-ray detector (31) and the gamma detector (32) are arranged in a stacked configuration along a radiation-receiving direction (33). The gamma detector (32) comprises a gamma collimator plate (320) comprising a plurality of pinholes (321), and a gamma conversion layer (322, 324) for converting detected gamma quanta into gamma detection signals.

Abstract: An interventional X-ray system is proposed, the system including a multi X-ray source unit positioned below a patient table. This ‘multiblock’ may comprise several x-ray sources with focal spot positions distributed along the x-y (table) plane. The x-ray sources are operable in a switching scheme in which certain x-ray sources may be activated in parallel and also sequential switching between such groups is intended. The switching may be carried out so that several images with different projection angles can be acquired in parallel. In other words, an optimal multi-beam X-ray exposure is suggested, wherein fast switching in one dimension and simultaneous exposure in the 2nd dimension is applied.

Abstract: The present invention relates to an apparatus for imaging an object. It is described to receive (110) by at least a portion of first pixels of a first area (A, A1, A2, A3, A4, A5, A6, A7, A8) of an X-ray detector (20) first radiation emitted by at least one X-ray source (30). The X-ray detector is configured such that X-ray radiation received by a pixel leads to the generation of signal in that pixel. A plurality of first signals representative of corresponding signals on the plurality of first pixels are stored (120) in at least one first plurality of storage nodes associated with the first area. Second radiation emitted by the at least one X-ray source (30) is received (150) by at least a portion of second pixels of a second area (B, B1, B2, B3, B4, B5, B6, B7, B8; C) of the X-ray detector. A plurality of second signals representative of corresponding signals on the plurality of second pixels are stored (190) in at least one second plurality of storage nodes associated with the second area.

Abstract: A radiation system (50), comprising a patient support platform (3). An X-ray radiation source (2a, 2b, 2c) is positioned beneath the patient support platform and enclosed by fixed radiation shielding. An X-ray radiation detector (22) is positioned above the patient support platform. A detector X-ray radiation shield (1, 11) comprising shield extension (7) is arranged on either side of the patient support platform, which extend from the X-ray radiation 5 detector to the fixed radiation shielding. The shield extensions are able to be moved relative to the source radiation shield to allow access to a patient on the support platform.

Abstract: A medical imaging system for providing X-ray image data of an object including at least one X-ray detector, an X-ray source arrangement, and a patient configured to receive an object for imaging a region of interest of the object. The at least one X-ray detector is movably mounted above the patient table; and the at least one X-ray detector and the X-ray source arrangement are movable independently. The X-ray source arrangement includes a physical trajectory support structure and is configured to provide X-ray radiation to the region of interest from a number of positions forming a concave open trajectory, wherein a portion of the trajectory and/or the physical trajectory support structure is located below the patient table; and wherein two end regions of the trajectory are extending on the two lateral sides of above the table.

Abstract: The invention relates to a combined imaging detector for detection of gamma and x-ray quanta comprising an x-ray detector (31) for generating x-ray detection signals in response to detected x-ray quanta and a gamma detector (32) for generating gamma detection signals in response to detected gamma quanta. The x-ray detector (31) and the gamma detector (32) are arranged in a stacked configuration along a radiation-receiving direction (33). The gamma detector (32) comprises a gamma collimator plate (320) comprising a plurality of pinholes (321), and a gamma conversion layer (322, 324) for converting detected gamma quanta into gamma detection signals.

Abstract: A radiation detector for combined detection of low-energy radiation quanta and high-energy radiation quanta has a multi-layered structure. A rear scintillator layer (5) is configured to emit a burst of scintillation photons responsive to a high-energy radiation quantum being absorbed by the rear scintillator layer (5). A rear photosensor layer (6) attached to a back side of the rear scintillator layer (5) is configured to detect scintillation photons generated in the rear scintillator layer (5). A front scintillator layer (3) arranged in front of the rear scintillator layer (5) opposite the rear photosensor layer (6) is configured to emit a burst of scintillation photons responsive to a low-energy radiation quantumbeing absorbed by the front scintillator layer (3). A front photosensor layer (2) attached to a front side of the front scintillator layer (3) opposite the rear scintillator layer (5) is configured to detect scintillation photons generated in the front scintillator layer (3).

Abstract: An interventional X-ray system is proposed, the system including a multi X-ray source unit positioned below a patient table. This ‘multiblock’ may comprise several x-ray sources with focal spot positions distributed along the x-y (table) plane. The x-ray sources are operable in a switching scheme in which certain x-ray sources may be activated in parallel and also sequential switching between such groups is intended. The switching may be carried out so that several images with different projection angles can be acquired in parallel. In other words, an optimal multi-beam X-ray exposure is suggested, wherein fast switching in one dimension and simultaneous exposure in the 2nd dimension is applied.

Abstract: A radiation system (50), comprising a patient support platform (3). An X-ray radiation source (2a, 2b, 2c) is positioned beneath the patient support platform and enclosed by fixed radiation shielding. An X-ray radiation detector (22) is positioned above the patient support platform. A detector X-ray radiation shield (1, 11) comprising shield extension (7) is arranged on either side of the patient support platform, which extend from the X-ray radiation 5 detector to the fixed radiation shielding. The shield extensions are able to be moved relative to the source radiation shield to allow access to a patient on the support platform.

Abstract: The present invention relates to an apparatus for imaging an object. It is described to receive (110) by at least a portion of first pixels of a first area (A, A1, A2, A3, A4, A5, A6, A7, A8) of an X-ray detector (20) first radiation emitted by at least one X-ray source (30). The X-ray detector is configured such that X-ray radiation received by a pixel leads to the generation of signal in that pixel. A plurality of first signals representative of corresponding signals on the plurality of first pixels are stored (120) in at least one first plurality of storage nodes associated with the first area. Second radiation emitted by the at least one X-ray source (30) is received (150) by at least a portion of second pixels of a second area (B, B1, B2, B3, B4, B5, B6, B7, B8; C) of the X-ray detector. A plurality of second signals representative of corresponding signals on the plurality of second pixels are stored (190) in at least one second plurality of storage nodes associated with the second area.

Abstract: The invention relates to the detection of x-ray and gamma quanta. In the medical imaging arrangement (100) an x-ray source (111) is attached to a first portion of an x-ray c-arm (113) and an x-ray detector (112) is attached to a second portion of the x-ray c-arm (113) for measuring x-ray transmission along a path (115) between the x-ray source and the x-ray detector. A gamma camera (114) is movable along a trajectory (116) that intersects the path between the x-ray source and the x-ray detector. Since the gamma camera can be moved along a trajectory that intersects the path between the x-ray source and the x-ray detector, the gamma camera can be used to generate a nuclear image that closely corresponds to the same region of interest as that which is imaged by the x-ray source and detector.

Abstract: A radiation detector for combined detection of low-energy radiation quanta and high-energy radiation quanta, the radiation detector (8) having a multi-layered structure, comprising: a rear scintillator layer (5) configured to emit a burst of scintillation photons responsive to a high-energy radiation quantum being absorbed by the rear scintillator layer (5); a rear photosensor layer (6) attached to a back side of the rear scintillator layer (5), said rear photosensor layer (6) configured to detect scintillation photons generated in the rear scintillator layer (5); a front scintillator layer (3) arranged in front of the rear scintillator layer (5) opposite the rear photosensor layer (6), said front scintillator layer (3) configured to emit a burst of scintillation photons responsive to a low-energy radiation quantumbeing absorbed by the front scintillator layer (3); and a front photosensor layer (2) attached to a front side of the front scintillator layer (3) opposite the rear scintillator layer (5), said fron

Abstract: A medical imaging device and a method for providing an image representation supporting positioning of an intervention device such as a wire tip (4) in a region of interest during an intervention is proposed. Therein, the following process steps are to be performed: (S1) acquiring a pre-live anatomy image (1) including a region of interest; (S2) acquiring a live anatomy image using a live image acquisition device comprising an adjustable collimator device; (S3) identifying a location (5) of the intervention device (4) within the live anatomy image; (S4) adjusting settings of the collimator device based on the identified location of the intervention device for subsequently acquiring a further live anatomy image representing the region of interest using the live image acquisition device with the collimator device being in the adjusted settings; and providing (S5) the image representation by merging information from the live anatomy image into the pre-live anatomy image.

Abstract: The present invention relates to providing X-ray image data of an object. In order to provide a medical X-ray imaging system with improved practicability, a medical X-ray imaging system (100) is provided, comprising at least one X-ray detector (110), an X-ray source arrangement (120), and a patient table (130). The patient table is configured to receive an object for imaging a region of interest (140) of the object. The at least one X-ray detector is movably mounted above the patient table; and the at least one X-ray detector and the X-ray source arrangement are movable independently. The X-ray source arrangement is configured to provide X-ray radiation to the region of interest from a number of positions (150) forming a concave open trajectory (160), wherein a middle portion (170) of the trajectory is located below the patient table; and wherein two end regions (180) of the trajectory are extending on the two lateral sides of the table and above the table.

Abstract: A medical imaging device and a method for providing an image representation supporting positioning of an intervention device such as a wire tip (4) in a region of interest during an intervention is proposed. Therein, the following process steps are to be performed: (S1) acquiring a pre-live anatomy image (1) including a region of interest; (S2) acquiring a live anatomy image using a live image acquisition device comprising an adjustable collimator device; (S3) identifying a location (5) of the intervention device (4) within the live anatomy image; (S4) adjusting settings of the collimator device based on the identified location of the intervention device for subsequently acquiring a further live anatomy image representing the region of interest using the live image acquisition device with the collimator device being in the adjusted settings; and providing (S5) the image representation by merging information from the live anatomy image into the pre-live anatomy image.

Abstract: An x-ray system (100) comprises a gantry (102) on which an x-ray source (104) and an x-ray detector (106) are mounted. A control unit (110) comprises means (114) for effectuating a wiggling motion of the gantry, wherein an axis (116) connecting the x-ray source and the x-ray detector traces a surface (128) of a cone (118). The x-ray source and the x-ray detector have a fixed position with respect to the axis. The control unit comprises means (120) for acquiring a series of x-ray images during the wiggling motion of the gantry. An object recognition unit (122) detects an object (124) appearing in the series of x-ray images to obtain a tracked path. A depth estimation unit (126) uses the tracked path for estimating a depth parameter indicative of a position of the object in a direction substantially parallel to the axis (116).

Abstract: A medical viewing system for processing and displaying a sequence of medical angiograms representing a balloon, moving in an artery, this system comprising extracting means for automatically extracting balloon image data in a phase of balloon expansion, and computing means for automatically defining and storing coordinates of a Region of Interest (ROI) based on the expanded balloon image data, located around the expanded balloon; and display means for displaying the images. Contrast agent may be used as agent of balloon expansion. The system may have means to detect and keep track of balloon markers and means to look around those markers for further balloon image data extraction.