Abstract: (DSA) enables the vascular structure around a heart to be displayed using the injection of a contrast medium while the heart is being observed by an X-ray apparatus. The quality of a DSA sequence can be affected by the breathing of the patient, when under examination. This is because the images forming a DSA sequence are gathered using an X-ray modality, and therefore the independent movement of transparent tissues inside a patient causes motion artifacts to appear in DSA images. According to an aspect of the present invention, a method, device, X-ray system, computer program element, and a computer readable medium are provided which can correct artifacts appearing in DSA images which originate from to the motion of the heart and the motion caused by breathing in a patient.

Abstract: An information retrieval system (IPS). The system comprises an input interface (IN) for receiving a query related to an object of interest. A concept mapper (CM) is configured to map the query to one or more associated concept entries of a hierarchic graph data structure (ONTO). The entries in said structure encode linguistic descriptors of components of a model (GM) for said object (OB). A metric-mapper (MM) is configured to map the query to one or more metric relationship descriptors. A geo-mapper (GEO) is configured to map said concept entries against the geometric model linked to the hierarchic graph data structure to obtain spatio-numerical data associated with said linguistic descriptors. A metric component (MTC) is configured to compute one or more metric or spatial relationships between said object components based on the spatio-numerical data and the one or more metric relationship descriptors.

Abstract: The present invention relates to automatic absorption means positioning in X-ray image acquisition. To improve image quality and to optimize the radiation exposure of an object, optimal position for X-ray absorption means is provided. A first sequence (113) of X-ray images is acquired (112). For each of the images, the optimal position (115) for X-ray absorption means is determined (114). A second sequence (117) of X-ray images is associated 10 (116) with corresponding images of the first sequence. The determined optimal position for the absorption means (14) of the associated corresponding images of the first sequence (113) is selected for an acquisition of the second sequence (117). Hence, a situation-specific database with optimized positions for the absorption means is generated on behalf of the first sequence in order to provide the generated position information for the actual acquisition of a 15 second sequence of images.

Abstract: A device for medical imaging of coronary vessels includes a medical imaging device configured to extract a first vessel map from computed tomography angiography data covering at least one reference cardiac phase and a plurality of second vessel maps from three-dimensional rotational angiography data including at least the reference, to generate a plurality of warped versions of the first vessel map aligned with each of second vessel maps, to merge the plurality of warped first vessel maps with corresponding ones of the second vessel maps at different cardiac phases in order to generate a plurality of merged vessel maps of the coronary vessels in the plurality of cardiac cycles.

Abstract: The present invention relates to a method and a device for medical imaging of coronary vessels, the device comprising: a data extracting module configured to extract a first vessel map from computed tomography angiography data covering at least one reference cardiac phase and a set of second vessel maps from three-dimensional rotational angiography data covering at least one cardiac cycle; an interpolation module configured to generate a series of warped versions of the first vessel map aligned with the set of second vessel maps, the series starting at the at least one reference cardiac phase; and a merging module configured to merge the series and the set of second vessel maps at the different phases in order to generate a final imaging map of the coronary vessels.

Abstract: During a medical intervention such as an angiography, the X-ray examination equipment (such as that mounted on a C-arm) produces a very large number of imaging frames of the intervention, as it progresses. This information contains frame sequences which can be effectively used to improve a medical report of the intervention. The sequence will contain sequences which contain similar clinical information though, and these frames may be considered to be redundant and not useful for inclusion in the medical report. The aspects detailed herein enable a selection of non-redundant sequences and/or frames, based on contextual information, obtained from the sequence of images, and/or other medical equipment, during an intervention. In this way, the redundancy inherent in the original frame sequence can be removed, leaving a set of prepared candidate sequences for insertion into a multimedia or documentary medical report.

Abstract: The present invention relates to an apparatus for providing a patient specific 3D model of a body part. It is described to provide (210) at least one 2D X-ray image comprising 2D X-ray image data of a vascular structure of a patient's body part. A 3D model of the body part is provided (220), the 3D model comprising a 3D modelled vascular structure, wherein at least one parameter commands an appearance of the 3D modelled vascular structure. The 3D modelled vascular structure is confronted (230) with the 2D X-ray image data of the vascular structure to determine the at least one parameter. The 3D model is updated (240) as a function of the determined at least one parameter. A medical report is generated (250) based on information determined from the 3D model.

Abstract: Interventional medical procedures involve a complex sequence of actions, often involving many different medical professionals and items of equipment. These actions, and their notable attributes, should be recorded in detail, in case they are required during a consultation in the future. A typical medical interventional procedure could require hundreds, or even thousands, of actions to be recorded. This places demands on a medical practitioner during the intervention. Typically, important information is dictated into a report after an intervention. Attempting to produce the report by traditional means, such as by dictation, after the intervention is time-consuming. The proposed approach enables the formation of clinical reports based on structured interventional medical reporting data recorded during a medical intervention in an easier, and more accurate way. Interventional procedure status indications are used which may be derived from existing medical equipment, or information inputs.

Abstract: The present invention relates to an apparatus for providing a synthetic representation of a vascular structure. It is described to provide (210) at least one 2D X-ray image comprising 2D X-ray image data of a vascular structure of a patient's body part is provided. A 3D model of the body part is provided (220), the 3D model comprising a 3D modelled vascular structure. A 2D projection of the 3D model of the body part is determined (230), the 2D projection of the 3D model of the body part comprising a 2D projection of the 3D modelled vascular structure. The 3D model of the body part is transformed (240). The transform of the 3D model of the body part comprises a determination of the pose of the 3D model of the body part such that a 2D projection of the 3D modelled vascular structure associated with the transformed 3D model of the body part is representative of the 2D X-ray image data of the vascular structure of the patient's body part.

Abstract: The present invention relates to localization of a vascular treatment and quantification of a part of a vascular structure. It is described to provide (12) at least one first image comprising a representation of a region of interest of a vascular structure. At least one second image comprising a representation of the region of interest of the vascular structure is provided (14). Between an acquisition of the at least one first image and an acquisition of the at least one second image, a vascular treatment might have been applied to the region of interest of the vascular structure, wherein the representation of the region of interest of the vascular structure relates to spatial extension information of the vascular structure at least in one image plane. At least one reference image from an image set formed from the at least one first image and the at least one second image is selected (16).

Abstract: Device for shaping a laser beam for an atomic sensor, comprising a retroreflector prism with an entrance area, an exit area and two reflection surfaces forming a right angle therebetween. The device for shaping includes a linear polarizer disposed upstream from the entrance area of the retroreflector prism for linearly polarizing a laser beam entering into the retroreflector prism by the entrance area, and a form birefringence plate disposed downstream from the exit area of the retroreflector prism to circularly polarize a laser beam exiting from the retroreflector prism by the exit area.

Abstract: Many medical procedures involve the implantation of an element in a vascular body. Current imaging techniques allow the positioning of such expandable elements to be checked, before and after implantation, using contrast bursts into the blood from a pigtail catheter. When the implantation of the medical device needs to be performed quickly, the pigtail catheter is pulled back briskly. This process is prone to error, because at the point of implantation, a medical professional has many other factors to consider, as well as the withdrawal of the catheter. If an implantable device traps the pigtail catheter during or after expansion, undesirable results can occur, such as having to pull sharply on the catheter to remove it, and in the process, disrupting the newly implanted device. This application discusses a technique for automatically generating a region of implantation around a medical device prior to and during implantation.

Abstract: The present invention relates to apparatus for automatic quantification of a part of vascular structure. It is described to provide (12) at least one first image comprising a spatial representation of a region of interest of a vascular structure, wherein the at least one first image comprises image data representative of a location of a part of a medical device. The medical device is configured to be used in a vascular treatment, and the part of the medical device is configured to be in a plurality of states associated with different phases of the vascular treatment. At least one second image comprising a spatial representation of the region of interest of the vascular structure is provided (14), wherein the at least one second image comprises image data representative of at least a part of the vascular structure in a visible and distinct manner.

Abstract: The invention relates to a gas cell for an atomic sensor, comprising an optical cavity provided with at least one optical window (9) and fillable with a gas. The cell also comprises a sealing cup comprising a cavity mouth, a channel mouth, and a sealing access, as well as a membrane which hermetically closes the sealing access of the sealing cup. The membrane can be plastically deformed by heating so as to hermetically close the cavity mouth and/or the channel mouth, in such a way as to hermetically separate the optical cavity from the gas inflow channel.

Abstract: The invention relates to a process for fabricating a microcell for a caesium atomic micro-clock having an inversion temperature above 80° C., comprising a step of generating a caesium vapor by heating a caesium-containing pellet, the buffer gas used containing neon and helium.

Abstract: In general, in an aspect, a method for providing an outbound gateway protection includes provisioning one or more worker gateways located in a first gateway virtual private cloud, the one or more worker gateways sharing configuration data with the controller gateway, provisioning one or more load balancer gateways in one or more client virtual clouds, the one or more client virtual clouds each comprising one or more clients, the one or more load balancer gateways distributing client requests among the worker gateways, assigning groups of the one or more clients to one of the one or more load balancer gateways based on requests from a majority of the worker gateways, and communicating outbound network traffic from the clients via the assigned load balancer gateways.

Abstract: (DSA) enables the vascular structure around a heart to be displayed using the injection of a contrast medium whilst the heart is being observed by an X-ray apparatus. The quality of a DSA sequence can be affected by the breathing of the patient, when under examination. This is because the images forming a DSA sequence are gathered using an X-ray modality, and therefore the independent movement of transparent tissues inside a patient causes motion artefacts to appear in DSA images. According to an aspect of the present invention, a method, device, X-ray system, computer program element, and a computer readable medium are provided which can correct artefacts appearing in DSA images which originate from to the motion of the heart and the motion caused by breathing in a patient.

Abstract: An apparatus configured to generate for display a plurality of vasculature views alongside a live fluoroscopy image. The views are selected in such a way that they allow visualizing the 3D structure of the vasculature segment in which the device is currently navigating. The view is best relative to one or a weighted average of a plurality of goodness of view standards. As the device progresses and new fluoroscopy images are acquired, the views are updated accordingly.

Abstract: The present invention relates to a method and a device for medical imaging of coronary vessels, the device comprising: a data extracting module configured to extract a first vessel map from computed tomography angiography data covering at least one reference cardiac phase and a set of second vessel maps from three-dimensional rotational angiography data covering at least one cardiac cycle; an interpolation module configured to generate a series of warped versions of the first vessel map aligned with the set of second vessel maps, the series starting at the at least one reference cardiac phase; and a merging module configured to merge the series and the set of second vessel maps at the different phases in order to generate a final imaging map of the coronary vessels.

Abstract: An image processor (IP) and an image processing method to support cardio- or neuro-interventions. An imager (100) acquires a series of fluoroscopic images (F) while an interventional tool progresses through a region of interest (ROI) such as a cardiac vasculature. Image processor (IP) operates to select from a plurality of stored angiograms (A) previously acquired of the region of interest a contextual one from which a contextual roadmap (RM) can be extracted. The contextual roadmap is selected to fit to both, a current cardiac phase and the current position of the device (GW). The selected contextual angiogram and its contextual roadmap is capable of showing the outlines of the vasculature (ROI) at the current device position at high contrast.