Koninklijke Philips Corporation N.v.

Dirk Schaefer

Michael Grass

Christian Haase

Eberhard Sebastian Hansis

Tobias Klinder

Thomas Koehler

Raoul Florent

Holger Schmitt

Axel Thran

Hanno Heyke Homann

Bernd Menser

Vincent Auvray

Gert Schoonenberg

Ewald Roessl

Gereon Vogtmeier

Volker Rasche

Irina Waechter-Stehle

Alexandra Groth

Heiner Daerr

Arjen Van Der Horst

Klaus Erhard

Jens Wiegert

Udo Van Stevendaal

Heidrun Steinhauser

Klaus Juergen Engel

Rolf Jürgen Weese

Arne Ewald

Alberto Fazzi

Herman Stegehuis

Babak Movassaghi

Peter Prinsen

Sven Kroenke

Ming De Lin

Cherif Sahyoun

Wade Allen Bowe

Uwe Jandt

Gert Antonius Franciscus Schoonenberg

A system (SYS) for supporting a medical procedure, comprising an interface (IN) for receiving at least one medical input signal that describes a state of a target anatomy. A signal analyzer (SA) is configured to analyze the medical input signal to determine a time window for deployment of a cardio-vascular device (CL) to be deployed by a deployment.

Signal-triggered interventional device control

A method and apparatus for analyzing diagnostic image data are provided in which a plurality of acquisition images of a vessel of interest having been acquired with a pre-defined acquisition method is received at a trained classifying device and classified, by the classifying device, to extract at least one quantitative feature of the vessel of interest from at least one acquisition image of the plurality of acquisition images. The at least one quantitative feature is then output associated with the at least one acquisition image while the acquisition of the diagnostic image data is still in progress and one or more adjustable image acquisition settings are adjusted based on the at least one quantitative feature to optimize the acquisition of the diagnostic image data.

Automated coronary angiography analysis

An image processing system (IPS), comprising an input interface (IN) for receiving a projection image from a plurality of projection images of a movable object (PAT) acquired along different directions by an imaging apparatus (XA), the projection images defined in a projection domain spanned by a radiation sensitive surface of the detector (D). The system includes a motion checker (MC) configured to operate in the projection domain to decide whether the projection image is corrupted by motion of the object during acquisition.

Efficient motion-compensation in cone beam computed tomography based on data consistency

The present invention relates to a device () for providing image data during an extraction procedure for extracting a lead from the body of a subject using an extraction device (). The device comprises an input () for receiving live x-ray projection image data of the lead during the extraction procedure and for receiving three-dimensional image data as acquired before the extraction procedure. A processing unit () determines a position of the extraction device () in the three-dimensional image data by detecting the position in the live projection image data during the procedure and correlates this position in the live projection image data with the position in the three-dimensional image data. An output () generates an image of a cross-sectional view of the lead and/or its surrounding body structure at the determined position based on the three-dimensional image data.

Image guidance for implanted lead extraction

An apparatus for image reconstruction that includes input circuitry configured to acquire, from an image sequence, first and second 2D projection data of a region of interest of an object at respective acquisition times; and provide first 3D object data of a first object in a region of interest and second 3D object data of a second object in a region of interest. The apparatus also includes a processor configured to generate a first registration of the first and/or second 3D object data to the first 2D projection data and a second registration of the first and/or second 3D object data to the second 2D projection data; provide a vector field defining motion of the second object relative to the first object between the acquisition times based on the registrations; generate corrected projection data using the vector field; and generate a motion-compensated image sequence based on the corrected projection data.

Tomographic x-ray image reconstruction

An image processing system (IPS) and related method. The system (IPS) comprises an input interface (IN) for receiving an image (IM) of an object (OB) acquired by an imaging apparatus (IA). A kernel provider (KP) of the system (IPS) is configured to provide respective scatter kernels for at least two scatter types. A scatter correction module (SCM) of the system (IPS) is configured to perform a correction in the image based on the provided at least two kernels.

Scatter correction for X-ray imaging

A three-dimensional morphological vessel model () can be obtained by assigning diameters () along the vessel derived from a two-dimensional morphological projection () at locations in the three-dimensional model defined by the temporal locations () of a trackable instrument (). An apparatus (), a system () and a method () for use of the system () in characterizing the vessel of a living being () by rendering a three-5 dimensional morphological vessel model () are presented.

Apparatus for vessel characterization

The invention relates to an apparatus configured to display an aortic valve image and an indicator when the aortic valve is in its open-state and/or when the valve is in its closed-state. The indicator is supposed to be in an overlay to the image of the aortic valve, such that a physician can see on the same display image the information needed to advance a guide wire or catheter through the aortic valve of a heart. This may prevent damaging ensures not to damage the aortic valve. The physician receives the relevant information, when the aortic valve is in its open-state and thus being in a state to be passed by the catheter. The information, whether the aortic valve is in its open-state or in its closed-state, corresponds to the systolic phase and the distal phase of the heart, respectively. The information, when the heart is in its systolic phase and when it is in the diastolic phase may be extracted from an ECG measurement. From the detection of these cardiac phases, the closed-state of the valve and/or the open-state of the valve can be estimated using general knowledge about flood flow during the cardiac cycle.

Signaling of an aortic valve state

The present invention is directed towards a system and method for transarterial chemoembolization using differently sized drug-eluting microsphere beads filled with drugs and determining a delivered drug concentration using an imaging system.

Drug concentration determination after transarterial chemoembolization with different sized drug-eluting microsphere beads

An imaging system includes radiation source that emits radiation that traverses an examination region and a portion of a subject therein and a detector array that detects radiation that traverses the examination region and the portion of the subject therein and generates a signal indicative thereof. A volume scan parameter recommender recommends at least one spectral scan parameter value for a volume scan of the portion of the subject based on a spectral decomposition of first and second 2D projections acquired by the radiation source and detector array. The first and second 2D projections have different spectral characteristics. A console employs the recommended at least one spectral scan parameter value to perform the volume scan of the portion of the subject.

Spectral imaging

A system (SC) for controlling operation of a multi-focal-spot X-ray imager (IA). The system comprises a projection direction determiner (PDD) configured to determine a projection direction for an object (OB) to be imaged, based on a geometric structure of a model m(OB) for the object (OB). A selector (SX) of the system is configured to select, from the imager (IA)'s plurality of focal-spot-detector pairs (IPj) with different optical axes (OXj), at least one target pair whose optical axis corresponds to the determined projection direction.

Anatomy adapted acquisition with fixed multi-source x-ray system

The present invention relates to tomosynthesis. In order to further facilitate and improve the generation of three-dimensional image data, an X-ray imaging system () for calibration-free tomosynthesis is provided. The system comprises an imaging arrangement () with an X-ray detector unit () and an X-ray unit () comprising a plurality of X-ray sources (). The system also comprises an image processing unit (), an object receiving space (), and a moving unit () for providing a relative movement between the imaging arrangement and an object of interest arranged at least partially in the object receiving space. The X-ray sources are provided in a known spatial relationship; the X-ray detector unit and the X-ray unit are also provided in a known spatial detector-sources-relationship. The moving unit provides a relative movement between the object of interest and the imaging arrangement in order to provide a plurality of system-to-object positions. The X-ray unit is configured to provide X-ray radiation to the object of interest from a plurality of different directions for each system-to-object position in order to provide a plurality of subsets of views with different viewing directions. The processing unit is configured to determine positions of the object in relation to the imaging arrangement based on the subsets of views, and to calculate a three-dimensional geometric position for each view of the subsets of views, and also to calculate a three-dimensional tomosynthesis reconstruction volume from the plurality of subsets of views.

Calibration-free tomosynthesis

Present invention relates to devices and methods for determining a calcium content by analyzing cardiac spectral CT data. CT projection data (), obtainable by scanning a cardiac region of a subject using a spectral CT scanning unit, is modelled () by applying a material decomposition algorithm to the projection data to provide a calcium-specific component. Tomographic reconstructions () of the projection data, to provide a first 3D image (), and of the calcium-specific component, to provide a second 3D image (), are performed. The first 3D image () is segmented () to provide an image mask () corresponding to a cardiovascular structure of interest, a part of the second 3D image () is selected () based on the image mask (), and a calcium content is calculated () in the cardiovascular structure of interest based on the selected part of the second 3D image ().

Determining calcium content from spectral CT data

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.

System and method for multi-beam X-ray exposure for 4D imaging

The invention discloses an apparatus (), a system () and a method () for characterization of vessels and for vessel modeling. The cross sectional area (A) of the vessel is derived from pressure measurements (p, p) obtained by an instrument () from within the vessel. When multiple cross sectional areas (A, A) are derived for multiple reference positions (r, r) based on pressure measurements (p, p, p) along the vessel, a representation () of the vessel can be rendered, without requiring any imaging modality. Furthermore, the effect of the pulsatile blood flow on the elasticity of the vessel walls can be visualized, supporting assessment of a stenosis or an aneurysm formation along the vessel.

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Hamburg, Germany

Dirk Schaefer