Holographic 3D Visualization of Interventional Instruments
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Solution Overview
Problem
Current minimally-invasive medical therapies face challenges in accurately visualizing interventional instruments within 3D anatomy due to reliance on 2D x-ray fluoroscopy, which limits spatial assignment and requires additional eyeglasses for 3D perception, and existing solutions for 3D displays in medical settings are not reliable or widely adopted.
Innovation Solution
A method involving recording a 3D data set of the anatomy, determining the spatial position of interventional instruments using biplanar x-ray fluoroscopy, forming a 3D model, fusing it with the anatomy data set, and reproducing the fused data as a real-time hologram using a holographic display or projector, allowing accurate and immersive 3D visualization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If 2D x-ray fluoroscopy is used for visualizing interventional instruments, then the imaging system is simple and widely available, but spatial assignment is limited and 3D perception requires additional eyeglasses
Solution Approach 1:
The patent transitions from 2D fluoroscopy to 3D visualization by recording fluoroscopy images from two different angulations and reconstructing them into a 3D model of the interventional instrument. This dimensional transformation enables accurate spatial assignment and natural 3D perception without requiring additional eyeglasses, as the 3D model is fused with the 3D anatomy data set and displayed in true three-dimensional space.
2Measurement precision
If existing 3D display solutions with polarization filters are used, then 3D image perception is achieved, but additional eyeglasses are required and reliability is reduced
Solution Approach 1:
The patent extracts and eliminates the requirement for polarization filter eyeglasses by directly generating a 3D hologram that can be perceived naturally by multiple observers. The 3D model of the instrument fused with the 3D anatomy data set is reproduced as a holographic image, removing the intermediary eyewear component and thereby improving system reliability and ease of use.
3Measurement precision
If biplanar x-ray fluoroscopy is used for 3D instrument visualization, then spatial position determination is accurate, but the system complexity and processing requirements increase
Solution Approach 1:
The patent performs preliminary action by first recording a 3D data set of the anatomy before introducing the interventional instrument. This pre-recorded 3D anatomical model serves as a reference framework that simplifies subsequent processing, as the biplanar fluoroscopy images can be directly registered and fused with this existing 3D structure, reducing the complexity of real-time 3D reconstruction.
Solution Approach 2:
The patent creates a 3D model (copy) of the interventional instrument from the biplanar fluoroscopy images. This digital 3D replica can then be fused with the 3D anatomy data set and reproduced as a hologram, allowing accurate spatial visualization without requiring complex real-time processing of the original fluoroscopy images during the intervention.
4Measurement precision
If 3D holographic display is implemented for real-time instrument tracking, then immersive 3D visualization is achieved, but real-time processing of biplanar images is required
Solution Approach 1:
The patent performs preliminary action by first recording a complete 3D data set of the anatomy before the intervention. This pre-established 3D anatomical model allows subsequent biplanar fluoroscopy images to be rapidly registered and fused without requiring complex real-time 3D reconstruction, thereby enabling real-time holographic display while maintaining processing efficiency.
Solution Approach 2:
The patent creates a pre-computed 3D model (copy) of the instrument from the biplanar images. This digital replica can be efficiently tracked and fused with the pre-recorded 3D anatomy data set in real-time, allowing the holographic display to update rapidly as the instrument moves, without requiring intensive real-time processing of raw fluoroscopy images.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables real-time, accurate, and immersive 3D visualization of interventional instruments relative to the patient, enhancing the safety and efficiency of minimally-invasive procedures by providing a reliable and multi-user compatible 3D display system.
Implementation Method 1
reproducing the fused data as a real-time hologram using a holographic display or projector
Implementation Method 2
determining the spatial position of the instrument by means of x-ray fluoroscopy using two images created from two different angulations
Data Source
AI summary
The invention relates to a method for presenting interventional instruments in a 3D data set of an anatomy to be treated. A 3D data set of the anatomy is recorded before introduction of an interventional instrument. Once the interventional instrument has been applied, the spatial position of the instrument is determined by x-ray fluoroscopy from images created at two different angulations. A 3D model of the instrument is formed from the x-ray images. The 3D model of the instrument is fused with the 3D data set of the anatomy. A 3D hologram is reproduced from the fused 3D data set. The 3D hologram is repeatedly reproduced in real time to follow the application of the instrument in the presentation.