Selective Image Acquisition for 3D Model Reconstruction
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Solution Overview
Problem
Current imaging technologies face challenges in efficiently acquiring optimal image data for constructing precise three-dimensional models of subjects during surgical procedures, particularly in minimizing radiation exposure and ensuring comprehensive data collection while allowing for minimal invasive techniques.
Innovation Solution
The method involves positioning an imaging system with a detector and source opposite each other within a gantry, which moves to acquire image data by rotating, tilting, and translating relative to the subject, using algebraic techniques to reconstruct a three-dimensional volumetric model from two-dimensional projections, and allowing for navigated procedures with registration and tracking systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional imaging systems are used to acquire comprehensive image data for three-dimensional model reconstruction, then measurement precision and model accuracy are improved, but radiation exposure to the patient increases
Solution Approach 1:
The system acquires image data at selectively optimized positions rather than continuous or exhaustive sampling. The processor determines a subset of optimal detector positions based on the specific surgical procedure and patient anatomy, acquiring only the necessary amount of data to achieve sufficient model accuracy while minimizing radiation exposure.
Solution Approach 2:
The system dynamically adjusts imaging parameters including detector position, source-to-detector distance, and acquisition timing based on procedural needs. The optimized acquisition positions vary depending on the specific surgical task, allowing the system to adapt radiation dose and data collection strategy to match actual requirements rather than using fixed comprehensive protocols.
2Measurement precision
If multiple imaging positions are acquired to ensure comprehensive data collection, then measurement precision is improved, but loss of time increases due to extended acquisition duration
Solution Approach 1:
The system determines and acquires image data at a selective subset of optimal positions rather than collecting data from all possible angles or positions. The processor identifies the minimum necessary set of acquisition positions required to achieve sufficient model accuracy for the specific surgical procedure, thereby reducing total acquisition time while maintaining data completeness.
Solution Approach 2:
The system pre-determines the optimal acquisition positions based on the planned surgical procedure and patient anatomy before actual image acquisition begins. This preliminary planning allows the system to optimize the acquisition protocol in advance, selecting only the necessary positions that will provide sufficient data for accurate three-dimensional model reconstruction.
3Reliability
If a dedicated imaging system is installed to ensure reliable image acquisition, then reliability is improved, but device complexity and space requirements increase
Solution Approach 1:
The imaging system is designed to be mobile and adaptable rather than a fixed dedicated installation. The same imaging apparatus can be positioned and configured for different surgical procedures and locations within the operating room, eliminating the need for multiple dedicated imaging systems while maintaining reliable image acquisition through optimized positioning and processing algorithms.
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
This approach enables the generation of accurate three-dimensional models with minimal radiation exposure, facilitating less invasive procedures and reducing the need for dedicated imaging spaces by allowing the imaging system to be mobile and used in various locations.
Implementation Method 1
The imaging system can include a detector to detect emitted energy, such as X-rays, from a source
Implementation Method 2
A three-dimensional model of the portion of the human subject regarding which the image data was acquired can be constructed based on the image data
Data Source
AI summary
A system and a method are disclosed that allow for generation of a model or reconstruction of a model of a subject based upon acquired image data. The image data can be acquired in a substantially mobile system that can be moved relative to a subject to allow for image acquisition from a plurality of orientations relative to the subject. The plurality of orientations can include a first and final orientation and a predetermined path along which an image data collector or detector can move to acquire an appropriate image data set to allow for the model of construction.