Structured Design Methodology to Achieve a High SNR Electrical Impedance Tomography

Area of Science:

• Biomedical Engineering
• Electrical Engineering
• Medical Imaging

Background:

• Electrical Impedance Tomography (EIT) systems require specialized circuit designs.
• Optimizing signal-to-noise ratio (SNR) and minimizing power consumption are critical challenges in EIT system development.

Purpose of the Study:

• To present a systematic methodology for designing the core circuit building blocks of EIT systems.
• To establish a framework for translating high-level EIT specifications into detailed circuit performance requirements.

Main Methods:

• Derivation of equations linking system-level EIT specifications to individual circuit block performance metrics.
• Review and selection of optimal circuit architectures based on defined performance requirements.

Main Results:

• A clear mapping between EIT system specifications and circuit block performance needs.
• Identification of suitable circuit architectures for enhanced EIT system design.

Conclusions:

• The proposed design methodology effectively guides the development of EIT circuits.
• This approach facilitates the creation of EIT systems with superior SNR and reduced power usage.