Body Surface Potential Mapping: A Perspective on High-Density Cutaneous Electrophysiology.

Area of Science:

• Bioelectronics
• Medical Diagnosis
• Electrophysiology

Background:

• Body surface potentials (BSPs) are crucial biomarkers in medical diagnosis, but traditional methods suffer from poor spatial resolution.
• High-density electrode arrays enable detailed BSP mapping (BSPMs), offering enhanced spatial information.
• Current BSP electrode array designs lack standardization, hindering comparability and reproducibility in clinical research.

Purpose of the Study:

• To propose preliminary design guidelines for BSP electrode arrays based on signal properties and signal processing principles.
• To address the interpretation challenges posed by increased spatial data in BSPMs.
• To foster more standardized, reproducible, and transferable clinical research in BSP mapping.

Main Methods:

• Literature review to extract design principles for electrode arrays based on physical signal properties.
• Exploration of signal processing techniques for BSPM data interpretation.
• Identification of machine learning approaches for diagnostic applications using BSPMs.

Main Results:

• Development of preliminary, generalized design guidelines for BSP electrode arrays.
• Outlined strategies for signal source reconstruction and machine learning-based diagnostics for BSPM data.
• Demonstrated the potential of BSP mapping to overcome limitations of traditional electrophysiological recordings.

Conclusions:

• Standardized BSP electrode array design and advanced data interpretation are crucial for maximizing diagnostic potential.
• BSP mapping offers significant advantages over traditional electrophysiological recordings.
• BSP mapping is poised for expansion into broader clinical applications.