Rotational scan spin delay with injector coupling

The imaging system addresses the challenge of timing C-arm spin initiation by using a processor to predict optimal delays based on X-ray image analysis and patient data, ensuring accurate contrast placement and reducing radiation exposure through precise synchronization, thereby improving image quality and clinical efficiency.

WO2024260802A1PCT designated stage expired Publication Date: 2024-12-26KONINKLIJKE PHILIPS NV
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Patent Information

Application Number
PCT/EP2024/066135
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-06-20
Filing Date
2024-06-12
Publication Date
2024-12-26

AI Technical Summary

Technical Problem

Current C-arm imaging systems face challenges in accurately timing the spin initiation during 3D rotational angiography to ensure contrast is within the region of interest during image acquisition, leading to suboptimal image quality and increased patient exposure to radiation due to manual and discrete timing options.

Method used

An imaging system that uses a processor to analyze X-ray images and patient-specific information to predict a spin initiation time delay, allowing for precise synchronization of image acquisition with contrast flow through the region of interest, utilizing an artificial neural network to determine the optimal delay based on features extracted from the images and procedural data.

Benefits of technology

This approach enables consistently better image quality by ensuring contrast is present during image acquisition, reducing the need for re-acquisitions and minimizing patient exposure to radiation and contrast, while also reducing the cognitive load on clinicians.

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Abstract

An imaging system includes a processor configured to receive an X-ray image of a subject acquired using an X-ray imaging device; extract one or more features of the subject from the X-ray image; predict a spin initiation time delay for the X-ray imaging device based on the extracted one or more features of the subject; determine an injection time of administration of an intravascular contrast agent injection to the subject; and initiate acquisition of an angiography image of the subject using the X-ray imaging device at a start time determined based on the injection time and the spin initiation time delay.
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Citation Information

Patent Citations

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    US20190313990A1