Compton Scattered X-ray Imaging with Segmented Detection

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Solution Overview

Problem

Current X-ray visualization and imaging technologies face limitations in providing detailed, high-resolution images of internal structures without causing harm or requiring complex processing, especially for diagnosing conditions like cancer and bone disorders.

Innovation Solution

The development of a Compton scattered X-ray visualizer and imager system that uses Compton scattering events to generate images by detecting scattered X-rays, allowing for visualization and imaging within specific depth ranges and providing information on tissue and bone structures with enhanced resolution and clarity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of stationary object

If conventional X-ray imaging is used to obtain detailed images of internal structures, then imaging depth and penetration are improved, but image resolution and soft tissue contrast deteriorate

Engineering Contradiction:
Improveimaging depthVSAvoidimage resolution
Core Design Contradiction:
Length of stationary objectVSMeasurement precision

Solution Approach 1:

The patent segments the imaging process into two distinct detection modes: transmission mode for bone imaging and scatter mode for soft tissue imaging. By separating these functions into different detection pathways, the system can optimize each mode for its specific purpose, achieving both deep penetration for bone and high contrast for soft tissue without compromise

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The imaging system is designed with multi-functionality to perform both transmission imaging and scatter imaging using the same X-ray source and detector assembly. This universal system can switch between modes depending on the imaging requirements, providing both deep penetration capability and high soft tissue contrast in a single platform

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Measurement precision

If higher X-ray doses are used to improve image quality and reduce noise, then image resolution is improved, but patient exposure and harmful effects worsen

Engineering Contradiction:
Improveimage qualityVSAvoidpatient exposure
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The patent converts the previously harmful Compton scattered X-rays, which were considered noise and waste, into a useful signal for soft tissue imaging. By detecting scatter events rather than rejecting them, the system creates a new imaging modality that uses what was formerly harmful radiation to provide valuable soft tissue contrast without requiring additional patient exposure

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The system changes the detection parameter from measuring transmitted X-ray intensity to measuring Compton scatter event characteristics. This parameter change allows the system to extract soft tissue information from scatter events, improving image quality for soft tissue while maintaining lower exposure levels

Inventive Principle:
Principle #35Parameter changes

3Device complexity

If scatter events are rejected to maintain simple processing, then device complexity is reduced, but information loss and diagnostic capability worsen

Engineering Contradiction:
Improveprocessing complexityVSAvoidsoft tissue information
Core Design Contradiction:
Device complexityVSLoss of information

Solution Approach 1:

The system converts scattered X-ray events from harmful interference into beneficial diagnostic information. By implementing scatter event detection and processing, the system recovers soft tissue information that would otherwise be lost, transforming a previously discarded signal into a valuable imaging modality

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The patent introduces an intermediary processing layer that analyzes Compton scatter events to extract soft tissue information. This intermediary processing stage acts as a bridge between the raw scatter detection and the final image reconstruction, enabling information recovery without requiring overly complex processing

Inventive Principle:
Principle #24Intermediary (Mediator)

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 non-invasive, high-resolution imaging of internal structures, improving diagnostic accuracy for conditions like cancer and bone disorders, while reducing the need for complex processing and minimizing exposure.

Implementation Method 1

a scintillator coupled to the second photodetector array

Methodology Applied
Scientific EffectScintillation: Scintillation

Data Source

PatentUS7711089B2Scintillator aspects of compton scattered X-ray visualization, imaging, or information providing
Publication Date: 2010.05.04 ENTERPRISE SCIENCE FUND LLC
  • US7711089B2 patent drawing
  • US7711089B2 patent drawing
  • US7711089B2 patent drawing

AI summary

A visualization or imaging system involves inducing and/or detecting Compton scattered X-rays to provide information or a visual representation of a portion of an individual. In one approach, the Compton scattered X-rays are converted to a visible or detectible representations through scintillation.