Automated Spirogram Analysis Using Shape Templates
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Solution Overview
Problem
Existing spirometry tests require significant knowledge to administer and interpret correctly, leading to potential inferior measurements and diagnoses due to improper execution or interpretation.
Innovation Solution
A system that receives and measures expiratory airflow, creates plots, determines the reliability of the measurements, and assesses lung function characteristics based on the plot's shape, using a processor, sensor, and user interface to automate the interpretation and diagnosis process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual interpretation of spirograms is performed by trained medical professionals, then diagnostic accuracy may be maintained, but the complexity and time required for administration and interpretation increases significantly
Solution Approach 1:
The patent replaces the manual mechanical interpretation process with an automated computer-based system that uses image processing and pattern recognition algorithms to analyze spirogram plots, thereby reducing interpretation complexity while maintaining diagnostic accuracy
Solution Approach 2:
The system enables self-service by allowing the spirogram analysis and interpretation to be performed automatically without requiring extensive manual intervention from trained medical professionals, reducing the complexity burden on operators
2Ease of operation
If automated interpretation systems are implemented, then ease of use and accessibility improve, but the reliability and accuracy of lung function assessment may be compromised
Solution Approach 1:
The system incorporates feedback mechanisms where the automated interpretation results are validated against established diagnostic criteria and reference ranges, ensuring that the automated analysis maintains reliability while improving ease of use
Solution Approach 2:
The system performs preliminary quality assessment and validation of spirogram data before automated interpretation, ensuring that only reliable measurements are subjected to automated analysis, thereby maintaining measurement reliability while enabling ease of operation
3Measurement precision
If comprehensive quality control measures are implemented to ensure reliable measurements, then measurement precision improves, but the time required for administration and interpretation increases
Solution Approach 1:
The system performs quality control checks and automated interpretation continuously and simultaneously during the spirogram acquisition process, eliminating the need for separate sequential steps, thereby maintaining measurement precision while reducing overall test administration time
Data Source
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AI summary
Automated analysis and interpretation of spirograms is provided to assess lung function of a subject. If the shape of a spirogram plot is deemed suitably reliable, the spirogram may be subsequently used for diagnostic purposes. Quality control of spirograms and/or interpretation of reliable spirograms may use shape templates corresponding to common test problems and/or typical lung diseases.