Heterogeneous Anthropomorphic Phantoms with Realistic Dielectric Properties for Microwave Breast Imaging Experiments

Area of Science:

• Biomedical Engineering
• Medical Imaging Physics

Background:

• Accurate breast phantoms are crucial for validating microwave imaging techniques.
• Existing phantoms may not fully represent the dielectric properties of diverse breast tissues.

Purpose of the Study:

• To develop and characterize realistic breast phantoms for microwave imaging experiments.
• To create phantoms with dielectric properties mimicking human breast tissue across the density spectrum.

Main Methods:

• Fabrication of heterogeneous breast phantoms using oil-in-gelatin dispersions.
• Mimicking dielectric properties of breast tissue at microwave frequencies.
• Characterization using CT scans and dielectric property measurements.

Main Results:

• Successfully fabricated four heterogeneous phantoms representing a full range of volumetric breast densities.
• Achieved dielectric properties consistent with breast tissue at microwave frequencies.
• Comprehensive characterization data obtained via CT and dielectric measurements.

Conclusions:

• The developed oil-in-gelatin phantoms offer a realistic and versatile tool for microwave breast imaging research.
• These phantoms enable more accurate experimental validation of novel imaging algorithms and systems.
• The fabrication technique provides a reliable method for creating tissue-mimicking materials for biomedical applications.