Pneumothorax Detection Using Segmented AI Pipelines

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Solution Overview

Problem

Pneumothorax, a serious medical condition, can be subtly missed in chest x-ray diagnoses due to its faint appearance, leading to potential misinterpretation by AI algorithms, which hampers accurate patient treatment and outcomes.

Innovation Solution

A computer-implemented method and system utilizing machine learning models, including a standard detection pipeline, confounding factor detection, and high-resolution detection pipeline, to assess chest x-ray images, considering image quality, patient positioning, and mimicking conditions, thereby enhancing the accuracy of pneumothorax detection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If a standard detection pipeline is used to analyze chest x-ray images, then processing speed is improved, but detection precision for subtle pneumothorax cases deteriorates

Engineering Contradiction:
Improveprocessing speedVSAvoiddetection precision
Core Design Contradiction:
SpeedVSMeasurement precision

Solution Approach 1:

The detection system is segmented into multiple independent pipelines: a standard detection pipeline for rapid screening and a high-resolution detection pipeline for detailed analysis. This segmentation allows the system to process images at different levels of detail simultaneously, maintaining both speed and precision by routing subtle cases to the high-resolution pipeline while rapid cases proceed through the standard pipeline.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system introduces an additional detection dimension by implementing a high-resolution detection pipeline that operates at a different resolution level than the standard pipeline. This dimensional change enables the system to handle subtle pneumothorax cases that require enhanced resolution, while the standard pipeline continues to provide rapid processing at normal resolution.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Measurement precision

If image resolution is increased to detect subtle pneumothorax, then detection precision is improved, but processing time increases

Engineering Contradiction:
Improvedetection precisionVSAvoidprocessing time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The processing workload is segmented into two distinct pipelines with different resolution requirements. The standard detection pipeline handles routine cases at normal resolution for quick processing, while the high-resolution detection pipeline is activated only for subtle or ambiguous cases that require enhanced detail. This segmentation prevents unnecessary high-resolution processing time for all cases, applying it only where needed.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system applies high-resolution detection only partially to the subset of images that require it, rather than excessively applying it to all images. This partial action approach maintains high detection precision for critical cases while avoiding the time penalty of processing every image at maximum resolution, thereby optimizing the balance between precision and processing time.

Inventive Principle:
Principle #16Partial or excessive action

3Measurement precision

If AI algorithms are used to detect pneumothorax, then detection accuracy is improved, but false positives from mimicking conditions increase

Engineering Contradiction:
Improvedetection accuracyVSAvoidfalse positives
Core Design Contradiction:
Measurement precisionVSObject-generated harmful factors

Solution Approach 1:

The system incorporates feedback mechanisms where the high-resolution detection pipeline reviews and validates findings from the standard pipeline. This feedback loop allows radiologists to correct false positives identified by AI algorithms, and the system learns from these corrections to improve future detections. The feedback process ensures that mimicking conditions are properly distinguished from actual pneumothorax cases.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The detection system is segmented into specialized pipelines that handle different detection challenges separately. The confounding factor detection pipeline specifically addresses mimicking conditions like breast implants and external objects, while the pneumothorax detection pipeline focuses on actual lung pathology. This segmentation allows each pipeline to be optimized for its specific task, reducing cross-contamination of false positives.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11727559B2Pneumothorax detection
Publication Date: 2023.08.15 MERATIVE US LP
  • US11727559B2 patent drawing
  • US11727559B2 patent drawing
  • US11727559B2 patent drawing

AI summary

A computer implemented method, a data processing system and a computer program product to determine a likelihood of pneumothorax of a patient, the method including assessing a digital image of a chest x-ray of the patient, applying a standard detection pipeline to the digital image, applying a confounding factor detector to the digital image, and applying a high-resolution detection pipeline to the digital image.