Dual patch antenna sensor for pneumothorax diagnosis: sensitivity and performance study
Summary
This study introduces a novel dual patch antenna sensor for rapid pneumothorax diagnosis. The portable sensor shows promising results for detecting air in the chest cavity, aiding pre-hospital emergency care.
Area of Science:
- Biomedical Engineering
- Medical Devices
- Electromagnetics
Background:
- Delayed diagnosis and treatment of pneumothorax can lead to severe health complications and mortality.
- Current pre-hospital diagnostic tools lack reliability, portability, and ease of use in emergency settings.
Purpose of the Study:
- To investigate the diagnostic performance and sensitivity of a dual patch antenna system for detecting pneumothorax.
- To address the clinical need for improved, portable diagnostic equipment in ambulances.
Main Methods:
- A dual patch antenna system operating between 1-4 GHz was designed and tested.
- Parametric studies were conducted using simplified rectangular tissue models and MRI-based anatomic models.
- The S12 parameter variation was analyzed to differentiate between healthy and pneumothorax conditions.
Main Results:
- A significant difference of 20.1 dB was observed at 1.87 GHz in numerical models.
- The sensor demonstrated satisfactory performance (7.1 dB at 2.3 GHz) on realistic anatomic models.
- The system achieved a diagnostic sensitivity capable of detecting 1 cm of air thickness.
Conclusions:
- The dual patch antenna system shows potential as a reliable and portable diagnostic tool for pneumothorax.
- Proposed design specifications for a thorax experimental phantom are provided for further validation.
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