A compensated radiolucent electrode array for combined EIT and mammography.

Area of Science:

• Biomedical Engineering
• Medical Imaging
• Electrical Engineering

Background:

• Electrical impedance tomography (EIT) shows potential for breast cancer detection by imaging tissue conductivity.
• EIT's low spatial resolution limits its standalone diagnostic utility.
• X-ray mammography is the current standard for breast cancer screening.

Purpose of the Study:

• To develop a radiolucent electrode array for simultaneous EIT and mammography.
• To enable data acquisition in register from both modalities.
• To enhance breast cancer detection by combining EIT and mammography.

Main Methods:

• Fabrication of a radiolucent electrode array using thin metal layers on a plastic substrate.
• Integration of the array with mammography unit compression plates.
• Characterization of the array's X-ray absorbance and electrical properties.

Main Results:

• The electrode array demonstrated satisfactory radiolucency, minimizing X-ray interference.
• The array exhibited sufficiently low electrical resistance for effective EIT measurements.
• Simultaneous data acquisition in register was achieved.

Conclusions:

• The developed radiolucent electrode array facilitates combined EIT and mammography.
• This integrated system has the potential to improve breast cancer screening accuracy.
• Further research is warranted to validate the clinical utility of this combined imaging approach.