Radiography Device Selective Tomosynthesis Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current radiography devices often perform both tomosynthesis and two-dimensional imaging, which can increase the burden on subjects and are not always necessary, as they capture detailed images regardless of the type of lesion detected.
Innovation Solution
A radiography device and method that selectively perform tomosynthesis imaging or two-dimensional radiography based on the detection of calcifications or tumor masses, adjusting incident angles and resolutions to minimize unnecessary imaging and reduce subject burden.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If both tomosynthesis imaging and two-dimensional radiography are always performed, then comprehensive image coverage is achieved, but the burden on the subject increases and unnecessary imaging is performed
Solution Approach 1:
The system performs preliminary detection of mutation sites from a radiographic image obtained at a predetermined incident angle before deciding whether to perform tomosynthesis imaging. This preliminary action allows the system to identify cases where comprehensive imaging is unnecessary, thereby reducing subject burden while maintaining reliability for cases that truly need both imaging modes
Solution Approach 2:
The system dynamically adjusts the imaging protocol based on detection results. When mutation sites are detected, the system determines whether to perform additional tomosynthesis imaging or sufficient two-dimensional radiography, making the imaging approach flexible rather than fixed, thus balancing completeness with reduced burden
2Measurement precision
If tomosynthesis imaging is performed at multiple incident angles, then imaging accuracy is improved, but imaging time and complexity increase
Solution Approach 1:
The system applies different imaging strategies to different detected mutation sites based on their characteristics. For calcifications, it may suffice with two-dimensional radiography at specific angles, while for tumor masses, tomosynthesis at multiple angles is performed. This localized approach maintains accuracy for each lesion type while reducing overall imaging time
Solution Approach 2:
The system changes imaging parameters (incident angles, imaging mode) based on the type of mutation site detected. By adjusting these parameters according to lesion characteristics, the system achieves necessary imaging accuracy without uniformly applying time-consuming multi-angle tomosynthesis to all cases
3Reliability
If both tomosynthesis and two-dimensional radiography are performed, then diagnostic reliability is improved, but device complexity and procedure complexity increase
Solution Approach 1:
The system performs preliminary detection of mutation sites before determining the imaging protocol. This preliminary step simplifies the decision-making process by providing concrete detection results that guide whether to proceed with complex tomosynthesis or simpler two-dimensional radiography, thereby managing overall procedure complexity
Solution Approach 2:
The system segments the imaging procedure into distinct paths based on mutation site detection results. One path involves tomosynthesis imaging for certain lesion types, another involves two-dimensional radiography for others. This segmentation allows the system to maintain diagnostic reliability through appropriate imaging selection while managing complexity by not always requiring both imaging modes
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 more accurate imaging while reducing the burden on subjects by only performing necessary imaging procedures, optimizing image quality and radiation exposure based on detected lesions.
Implementation Method 1
a radiation emitting unit that is capable of irradiating a subject with radiation at a plurality of different incident angles
Data Source
AI summary
A radiography device includes: a radiation emitting unit that irradiates a subject with radiation at a plurality of different incident angles; a radiographic image generation unit that receives the radiation passed through the subject and generates a radiographic image; a part-of-interest detection unit that detects a mutation site suspected as a lesion from the radiographic image obtained by irradiating the subject with the radiation at a predetermined incident angle; and a radiography device control unit that controls whether to perform each of the tomosynthesis imaging in which the radiographic image generation unit generates the radiographic image while the radiation emitting unit changes the incident angle of the radiation and two-dimensional radiography in which the radiation emitting unit is fixed to a predetermined incident angle and the radiographic image generation unit generates the radiographic image, on the basis of a detection result of the part-of-interest detection unit.