US 2021/0228169 A1Published application

Visualization method and apparatus

AssigneeSiemens Healthcare GmbH

InventorsMarkus Kowarschik, Sebastian Schafer

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Abstract

An inverse visualization of a time-resolved angiographic image data set of a vascular system of a patient that was recorded by a medical imager during the flow of a contrast medium through the vascular system is provided. The time-resolved angiographic image data set of the vascular system has a temporal sequence of frames of the vascular system corresponding to the contrast medium filling process. A data set from bolus arrival times for each pixel or voxel is determined. The bolus arrival time corresponds to the time in the temporal sequence at which a predetermined contrast enhancement due to the contrast medium filling first occurs. A data set of temporally inverted bolus arrival times with respect to the contrast medium filling is determined for each pixel or voxel, resulting in a temporally inverted sequence of frames with respect to the contrast medium filling. The time-resolved angiographic image data set in the temporally inverted sequence is visualized.

Claims14

Dependent claims

A method for creating an inverse visualization of a time-resolved angiographic image data set of a vascular system of a patient that was recorded by a medical imaging facility during the flow of a contrast medium and/or marked blood components through the vascular system, the method comprising:

providing the time-resolved angiographic image data set of the vascular system, the time-resolved angiographic image data set having a temporal sequence of frames of the vascular system at N times (t(1), . . . , t(N)) corresponding to the contrast medium and/or marked blood components filling process,
determining a data set from bolus arrival times tBAT for each pixel or voxel of the frames of the recorded vascular system, wherein the bolus arrival time corresponds to the time (t(i)) in the temporal sequence at which a predetermined contrast enhancement due to the contrast medium and/or marked blood components filling first occurs,
determining a data set of temporally inverted bolus arrival times tBATin with respect to the contrast medium and/or marked blood components filling for each pixel or voxel of the recorded vascular system, the data set being a temporally inverted sequence of frames with respect to the contrast medium and/or marked blood components filling, and
visualizing at least a part of the time-resolved angiographic image data set of the vascular system in the temporally inverted sequence with respect to the contrast medium and/or marked blood components filling.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 17/152,078Filed 19 Jan 2021
Priority: DE 10 2020 200 967.828 Jan 2020
Published: 29 Jul 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification18 codes

A61B 6/486
Diagnostic techniques: involving generating temporal series of image data
G16H 30/40
ICT specially adapted for the handling or processing of medical images: for processing medical images, e.g. editing
A61B 6/032
Computed tomography [CT]: transmission computed tomography [CT]
A61B 6/4085
Specially adapted for producing a particular type of beam: cone-beams

Family

US 11,707,240 B2Related patent
US 2021/0228169 A1This patent

From the US filing history. Foreign family members aren’t listed.

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