Dynamic visualization of device delivery

By correlating high-dose and low-dose x-ray angiograms using motion features, the visualization of intravascular devices is enhanced without continuous contrast use, addressing the challenge of vessel visibility in x-ray angiograms and enabling real-time tracking.

JP2025536869APending Publication Date: 2025-11-12LIGHTLAB IMAGING LLC
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Patent Information

Application Number
JP2025513323
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-06-13
Filing Date
2024-07-24
Publication Date
2025-11-12

AI Technical Summary

Technical Problem

Blood vessels are difficult to visualize on an x-ray angiogram without the intravascular use of a radiological contrast agent, and repeated or continuous use of contrast during procedures is undesirable due to medical reasons and side effects.

Method used

Correlate high-dose and low-dose extraluminal images using motion features visible in both images, without the use of sensors like electrocardiogram readings or timestamps, to dynamically visualize the delivery of intravascular devices by overlaying a vascular map generated from high-dose images onto low-dose images.

Benefits of technology

Provides uninterrupted visibility of the vascular tree during device delivery, reducing the need for repeated contrast injections and minimizing side effects, while maintaining real-time tracking of the device's position relative to the vascular morphology.

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Abstract

The present disclosure provides a system and method for dynamically visualizing the delivery of a device within a vessel by correlating at least one first extraluminal image with a second extraluminal image. The extraluminal images can be correlated based on motion characteristics without the use of additional sensors or timestamps. The first extraluminal image can be a high-dose contrast X-ray angiogram (XA), and the second extraluminal image can be a low-dose contrast XA. The high-dose contrast XA can be used to generate a vascular map. The low-dose contrast XA can be taken during delivery of a device, such as a balloon, stent, or probe. By correlating the high-dose XA and the low-dose XA based on motion characteristics, the vascular map can be overlaid on the low-dose XA to provide a physician with a real-time visualization of the location of the device within the vascular tree.
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Citation Information

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