Koninklijke Philips Corporation N.v.

Holger Schmitt

Michael Grass

Christian Haase

Javier Olivan Bescos

Romane Isabelle Marie-Bernard Gauriau

Raoul Florent

Ihor Olehovych Kirenko

Julien Senegas

Arjen Van Der Horst

Peter Maria Johannes Rongen

Hannes Nickisch

Vincent Maurice André Auvray

Bram Antonius Philomena Van Rens

Roland Wilhelmus Maria Bullens

Martijn Anne Van Lavieren

Albert Garcia I Tormo

Rink Springer

Cornelis Willem Johannes Immanuel Spoel

Eran Langzam

A computer-implemented method of measuring a blood flow parameter in a vasculature, is provided. The method includes: analyzing spectral CT projection data to isolate from the spectral CT projection data, contrast agent projection data representing the flow of the injected contrast agent; sampling the contrast agent projection data at one or more regions of interest in the vasculature to provide temporal blood flow data at the one or more regions of interest; and calculating, from the temporal blood flow data, a value of one or more blood flow parameters at the one or more regions of interest.

Measurement of blood flow parameters

The invention refers to an apparatus for monitoring a subject () during an imaging procedure, e.g. CT-imaging. The apparatus () comprises a monitoring image providing unit () providing a first monitoring image and a second monitoring image acquired at different support positions, a monitoring position providing unit () providing a first monitoring position of a region of interest in the first monitoring image, a support position providing unit () providing support position data of the support positions, a position map providing unit () providing a position map mapping calibration support positions to calibration monitoring positions, and a region of interest position determination unit () determining a position of the region of interest in the second monitoring image based on the first monitoring position, the support position data, and the position map. This allows to determine the position of the region of interest accurately and with low computational effort.

Apparatus, method and computer program for monitoring a subject during a medical imaging procedure

An apparatus for assessing a vessel of interest and a corresponding method are provided in which the modeling of the hemodynamic parameters using a fluid dynamics model can be verified by deriving feature values from the segmented vessel of interest and inputting these feature values into a classifier. The classifier may then determine, based on the feature values whether the segmentation has been performed from proximal to distal, from distal to proximal or cannot be determined from the provided data. An incorrect segmentation order can thus be identified and potentially be corrected, thereby avoiding inaccurate simulation results.

Orientation detection for 2D vessel segmentation for angio-FFR

An apparatus for determining a functional index for stenosis assessment of a vessel is provided. The apparatus comprises an input interface () and a processing unit (). The input interface is configured to obtain image data () representing a two-dimensional representation of a vessel (). The processing unit () is configured to determine a course of the vessel () and a width (w, w) of the vessel along its course in the image data and is further configured to determine the functional index for stenosis assessment of the vessel based on the width of the vessel in the image data.

Apparatus for determining a functional index for stenosis assessment

Growing community of inventors

Luetjensee, Germany

Holger Schmitt