Radiographic Imaging Exposure Parameter Control

Solution Overview

Problem

Current radiographic imaging systems face challenges in obtaining high-quality images due to inadequate exposure parameters, leading to suboptimal image quality and potential radiation overexposure or underexposure.

Innovation Solution

A method and system that determine target exposure parameters based on biological information and parameter control curves, including pre-imaging to adjust tube voltage, tube current, and irradiation duration, to achieve optimal image brightness and dose control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If exposure parameters are increased to improve image quality, then image brightness and quality improve, but radiation dose to the subject increases

Engineering Contradiction:

Improveimage brightnessVSAvoidradiation dose

Core Design Contradiction:

Illumination intensityVSObject-affected harmful factors

Solution Approach 1:

The system performs pre-imaging before the actual radiographic imaging to determine appropriate exposure parameters. This preliminary action allows the system to estimate the subject's attenuation characteristics and calculate optimal exposure parameters that achieve desired image quality while minimizing radiation dose.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system uses feedback from the pre-imaging process to adjust exposure parameters. The pre-imaging image quality and brightness are evaluated, and this feedback is used to refine the exposure parameter selection, ensuring optimal balance between image quality and radiation dose for the subsequent imaging.

Inventive Principle:

Principle #23Feedback

2Object-affected harmful factors

If exposure parameters are decreased to reduce radiation dose, then radiation exposure is reduced, but image quality deteriorates

Engineering Contradiction:

Improveradiation doseVSAvoidimage quality

Core Design Contradiction:

Object-affected harmful factorsVSManufacturing precision

Solution Approach 1:

The system performs pre-imaging before the actual radiographic imaging to determine appropriate exposure parameters. This preliminary action allows the system to estimate the subject's attenuation characteristics and calculate optimal exposure parameters that achieve desired image quality while minimizing radiation dose.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts exposure parameters (tube voltage, tube current, exposure time) based on feedback from the pre-imaging process and subject characteristics. These parameter changes are optimized to maintain image quality while reducing radiation dose compared to conventional fixed parameter approaches.

Inventive Principle:

Principle #35Parameter changes

3Ease of operation

If fixed exposure parameters are used to simplify operation, then ease of operation improves, but adaptability to different subjects deteriorates

Engineering Contradiction:

Improveoperation simplicityVSAvoidadaptability to subjects

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The system automatically determines optimal exposure parameters for each subject based on their unique characteristics (weight, body part, attenuation properties) without requiring manual intervention. The pre-imaging process and automated parameter calculation enable the system to serve itself in optimizing imaging parameters, maintaining ease of operation while achieving high adaptability.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system dynamically adjusts exposure parameters (tube voltage, tube current, exposure time) based on feedback from the pre-imaging process and subject characteristics. These parameter changes are optimized to maintain image quality while reducing radiation dose compared to conventional fixed parameter approaches.

Inventive Principle:

Principle #35Parameter changes

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 ensures high-quality radiographic images by accurately adjusting exposure parameters, reducing radiation exposure while maintaining image quality, and adapting to individual subject characteristics and user preferences.

Implementation Method 1

pre-imaging a subject by delivering radiation to the subject based on the control instruction to obtain candidate exposure parameters

Methodology Applied

Scientific EffectX-Ray radiation: X-Ray

Data Source

PatentUS11957499B2Systems, methods, devices and storage mediums for obtaining a radiographic image

Publication Date: 2024.04.16 SHANGHAI UNITED IMAGING HEALTHCARE

AI summary

The present disclosure discloses methods and systems for obtaining a radiographic image. The method may include obtaining a control instruction for controlling an imaging device to image a subject; determining, based on information reflecting a user's behavior in using the imaging device, adjustment parameters of a radiation generating device in the imaging device; and based on the control instruction, determining target exposure parameters at least based on a parameter control curve or biological information of the subject, the parameter control curve including a preset first parameter control curve or a second parameter control curve determined based on operation data of the imaging device, and the biological information including at least a weight and an overall content of each component of the subject; and imaging, based on the target exposure parameters, the subject to obtain the radiographic image.