Dynamic X-ray Parameter Adjustment for Region-Specific Imaging
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Solution Overview
Problem
Current X-ray imaging technologies do not dynamically adjust X-ray acquisition parameters during an examination, limiting the ability to optimize image quality based on specific regions of interest, unlike ultrasound imaging which can adjust parameters in real-time for improved representation.
Innovation Solution
A method and system for dynamically adjusting X-ray acquisition parameters by identifying a region-of-interest in an initial low-dose image and adjusting parameters such as X-ray tube current, voltage, and beam filtration to produce a diagnostic-quality image, which may involve automatic or user-driven adjustments and the use of historical image data to reduce artifacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a single set of X-ray acquisition parameters is used for the entire examination, then the examination process is simple and quick, but image quality cannot be optimized for specific regions of interest
Solution Approach 1:
The examination process is segmented into multiple phases: an initial low-dose phase for region identification, and a subsequent diagnostic phase with optimized parameters for the identified region of interest. This segmentation allows tailored parameter optimization without requiring complex real-time adjustments throughout the entire examination.
Solution Approach 2:
A preliminary low-dose examination is performed to identify the region of interest before the main diagnostic examination. This preliminary action enables subsequent parameter optimization to be targeted and effective, improving diagnostic image quality without requiring complex real-time parameter adjustment mechanisms.
2Manufacturing precision
If high radiation dose is used to produce diagnostic-quality images, then image quality is improved, but radiation exposure to the patient increases
Solution Approach 1:
Radiation dose is optimized locally to the identified region of interest rather than uniformly across the entire examination field. The system adjusts X-ray parameters specifically for the region requiring diagnostic evaluation, delivering higher dose only where necessary for diagnostic quality while reducing overall radiation exposure.
Solution Approach 2:
The system applies a low radiation dose for the initial region identification phase, then applies a higher dose only to the specific region of interest for the diagnostic phase. This partial action approach ensures diagnostic quality is achieved only where needed, minimizing total radiation exposure while maintaining necessary diagnostic capabilities.
3Manufacturing precision
If X-ray parameters are dynamically adjusted during examination, then image quality for regions of interest is optimized, but the examination time and processing complexity increase
Solution Approach 1:
The examination follows a periodic structure with distinct phases: an initial low-dose phase for region identification, followed by a diagnostic phase with optimized parameters. This periodic approach enables parameter optimization without requiring continuous real-time adjustments, reducing processing complexity and examination time while maintaining region-specific image quality.
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 allows for improved image quality and reduced radiation dose by tailoring X-ray acquisition parameters to specific regions of interest, enhancing diagnostic usefulness and reducing artifacts in X-ray images.
Implementation Method 1
the object is exposed to X-ray radiation comprising X-ray photons
Implementation Method 2
an image(s) is formed based upon the radiation absorbed and/or attenuated by interior aspects of the object
Data Source
AI summary
Among other things, one or more techniques and/or systems are described for dynamically adjusting one or more X-ray acquisition parameters of an X-ray imaging modality. During a first portion of an examination of an object, the object is examined using a first set of X-ray acquisition parameters and a first image is generated. A region-of-interest is identified in the first image and one or more X-ray acquisition parameters are adjusted as a function of the identified region-of-interest to establish a second set of X-ray acquisition parameters. During a second portion of the examination of the object, the object is examined using the second set of X-ray acquisition parameters to generate a second image. In this way, X-ray acquisition parameters can be adjusted in real-time or ‘on the fly’ to obtain a (more) desired image.