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X-ray ring markers for x-ray calibration

An X-ray and marking technology, applied in the field of X-ray calibration, can solve the problem of negative impact on workflow

Active Publication Date: 2021-11-09
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This approach requires adding multiple parts to the room and often negatively impacts the workflow of the process

Method used

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  • X-ray ring markers for x-ray calibration
  • X-ray ring markers for x-ray calibration
  • X-ray ring markers for x-ray calibration

Examples

Experimental program
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Embodiment Construction

[0052] To facilitate understanding of the various aspects of this disclosure, the Figure 1-10 The following description of ® teaches embodiments of the X-ray ring markers of the present disclosure. Based on this description, one of ordinary skill in the art will appreciate how to apply various aspects of the present disclosure to make and use additional embodiments of the disclosed X-ray ring markers.

[0053] refer to figure 1 , the X-ray ring marker 20 of the present disclosure adopts a coaxial structure of the chirped ring 40 and the center ring 50 on the ring base 30 .

[0054] In practice, the annular base 30 may have any annular shape suitable for registering the C-arm to the X-ray annular marker 30, including but not limited to circular and oval.

[0055] Also in practice, the annular base 30 may be constructed of a partially or fully X-ray imageable material.

[0056] Chirped ring 40 is an X-ray imageable ring-shaped structure that embodies a chirped signal, shown ...

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PUM

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Abstract

Various embodiments of the present disclosure include a C-arm registration system employing a controller (70) for registering a C-arm (60) to a X-ray ring marker (20). The X-ray ring marker (20) includes a coaxial construction of a chirp ring (40) and a centric ring (50) on an annular base (30). In operation, the controller (70) acquires a baseline X-ray image illustrative of the X-ray ring marker (20) within a baseline X-ray projection by the C-arm (60) at a baseline imaging pose, derives baseline position parameters of the X-ray ring marker (20) within the baseline X-ray projection as a function of an illustration of the centric ring (50) within the baseline X-ray image, and derives a baseline twist parameter of the X-ray ring marker (20) within the baseline X-ray projection as a function of the baseline position parameters and of an illustration of the chirp ring (40) within the baseline X-ray image.

Description

technical field [0001] The present disclosure generally relates to X-ray calibration. The present disclosure specifically relates to the imaging of X-ray ring markers for X-ray calibration. Background technique [0002] X-ray C-arm systems are often used in minimally invasive surgical procedures (eg, orthopedic procedures, vascular interventions, etc.) to enable a surgeon to view inside a patient by taking X-ray images from any direction. More specifically, mobile C-arms typically have wheels to provide mobility around a room, and once positioned, mobile C-arms allow the user to adjust the position of the C-arm in five (5) directions. Although this provides flexibility in the execution of minimally invasive surgical procedures, the exact location and angle of the X-ray projections are not known. This prevents users from employing advanced tools, including making true three-dimensional ("3D") measurements, large field of view imaging, dynamic overlay of preoperative or intr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/00
CPCA61B6/584A61B6/08A61B6/4441A61B6/587
Inventor A·帕特里丘A·托尔耶森M·L·弗莱克斯曼A·S·潘斯M·A·巴利茨基R·F·J·霍尔特辉泽恩
Owner KONINKLJIJKE PHILIPS NV
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