Dynamic Analysis System for Non-Invasive Lung Compliance Measurement
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Solution Overview
Problem
Current dynamic imaging systems struggle to accurately evaluate the flexibility of lung fields and pulmonary vessels, which is crucial for diagnosing respiratory and cardiovascular issues, as existing methods either require invasive procedures or cannot provide localized and stable measurements.
Innovation Solution
A dynamic analysis system that calculates index values representing variations in lung fields and pulmonary vessels from dynamic X-ray images, using a diagnostic console to evaluate flexibility based on these calculated values, including variations in density, area, and curvature, allowing for non-invasive assessment of lung and vascular flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional invasive methods (esophageal tube insertion) are used to measure lung compliance, then measurement capability is achieved, but patient burden increases and measurement stability deteriorates
Solution Approach 1:
The patent replaces the mechanical invasive measurement system (esophageal tube insertion and pressure detection) with a non-invasive imaging-based system. X-ray imaging captures lung field variations during respiration, and computational algorithms calculate compliance metrics from these images, eliminating the need for physical tube insertion and direct pressure measurement while maintaining diagnostic capability
Solution Approach 2:
The patent introduces X-ray imaging as an intermediary medium to indirectly measure lung compliance. Instead of directly measuring esophageal pressure, the system captures radiographic images of lung field variations and uses these as intermediate data to compute compliance metrics, providing an indirect but non-invasive measurement pathway
2Measurement precision
If traditional blood pressure measurement methods (multiple sphygmomanometers) are used to assess vascular hardness, then measurement capability is achieved, but device complexity increases
Solution Approach 1:
The patent makes the X-ray imaging system universal by enabling it to perform multiple functions: capturing lung field images for compliance assessment and pulmonary vessel images for hardness evaluation. This single imaging platform replaces multiple specialized measurement devices (esophageal tube, multiple sphygmomanometers, echography equipment), reducing overall system complexity while maintaining comprehensive diagnostic capability
Solution Approach 2:
The patent uses X-ray imaging to create visual copies of pulmonary vessels and calculates hardness metrics from these image representations. Instead of requiring direct physical measurement of vessel properties, the system captures radiographic copies of the vessels and derives mechanical properties through image analysis, simplifying the measurement approach
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 the non-invasive evaluation of lung field and pulmonary vessel flexibility, providing stable and localized measurements that aid in early diagnosis and monitoring of respiratory and cardiovascular conditions.
Implementation Method 1
continuous emission of pulsed radiation from a radiation source
Data Source
AI summary
A dynamic analysis system includes a diagnostic console which calculates at least one index value representing variation in a target portion of a human body from at least one dynamic image acquired by performing radiographic imaging to a subject containing the target portion, and evaluates flexibility of the target portion based on the calculated index value.