ELECTRICAL IMPEDANCE SPECTROSCOPY FOR EVALUATION OF EXCISION-REQUIRED SUSPICIOUS MASSES

摘要

A method for real-time and in-vivo detecting cancerous status of a suspected mass to in a living body. The method includes putting two electrodes of an electrical probe in contact with the suspected mass, recording an electrical impedance spectroscopy (EIS) from the suspected mass utilizing an impedance analyzer device connected to the electrical probe by plotting an impedance phase diagram respective to a swept range of frequencies while applying an alternating current (AC) voltage between the two electrodes, calculating an impedance phase slope (IPS) of the plotted impedance phase diagram in a frequency range between 100 kHz and 500 kHz, and detecting cancerous status of the suspected mass based on the calculated IPS. Detecting cancerous status of the suspected mass based on the calculated IPS includes detecting the suspected mass is a cancerous mass or a precancerous mass if the calculated IPS is less than a reference IPS.