A non-invasive intracranial hemorrhage detection system based on electromagnetic induction

Area of Science:

• Biomedical Engineering
• Medical Physics
• Electromagnetics

Background:

• Intracranial hemorrhage (ICH) detection requires rapid, non-invasive methods at the point of care.
• Current gold-standard imaging (CT, MRI) is bulky and expensive, limiting bedside applications.
• A need exists for portable, low-cost ICH monitoring solutions.

Purpose of the Study:

• To develop and evaluate a portable electromagnetic induction system for detecting intracranial hemorrhage.
• To overcome limitations of existing imaging modalities for point-of-care ICH diagnosis.
• To establish a practical technological pathway for bedside ICH monitoring.

Main Methods:

• Utilized a simplified single-coil sensor and a high-precision inductance-to-digital converter (LDC1101).
• Employed electromagnetic simulation, custom coil design, hardware implementation, and software development.
• Integrated an RGB localization algorithm for hemorrhage identification and spatial mapping.

Main Results:

• The system effectively detected simulated intracranial hemorrhage lesions in a 3D-printed head phantom.
• Demonstrated successful differentiation between simulated ICH (NaCl solution) and normal brain tissue.
• Achieved accurate localization of simulated hemorrhage using the developed algorithm.

Conclusions:

• The developed portable system offers a novel and practical approach for point-of-care ICH detection.
• Electromagnetic induction shows promise as a low-cost alternative to traditional imaging for ICH monitoring.
• This technology facilitates bedside and point-of-care applications for improved patient outcomes after head trauma.