# Subcranial Encephalic Temnograph-Shaped Helmet for Brain Stroke Monitoring

## TL;DR

A wearable microwave helmet is developed to monitor brain stroke recovery in real-time with promising accuracy.

## Contribution

A low-cost, wearable microwave imaging system for post-acute brain stroke monitoring is proposed and validated.

## Key findings

- The system successfully detects changes as small as 16 mL in volume using a 16-antenna pneumatic array.
- Phantom experiments with Triton X-100-based mixtures validated the system's reliability and accuracy.
- The use of differential scattering and Incoherent MUSIC algorithm enables 3D imaging of brain regions.

## Abstract

In this contribution, a wearable microwave imaging system for real-time monitoring of brain stroke in the post-acute stage is described and validated. The system exploits multistatic/multifrequency (only 50 frequency samples) data collected via a low-cost and low-complexity architecture. Data are collected by an array of only 16 antennas moved by pneumatic system. Phantoms, built from ABS material and filled with appropriate Triton X-100-based mixtures to mimic the different head human tissues, are employed for the experiments. The microwave system exploits the differential scattering measures and the Incoherent MUSIC algorithm to provide a 3D image of the region under investigation. The shown results, although preliminary, confirm the potential of the proposed microwave system in providing reliable results, including for targets whose evolution is as small as 16 mL in volume.