Innovation for using dielectric properties to distinguish lung tumor from normal lung tissues and preliminary exploration for the relevance with metabolic features

Le résumé fourni par la source

Background: F] fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) parameters and the dielectric properties. Methods: Dielectric properties of lung tumors were measured using an open-ended coaxial probe across a frequency range of 1-4,000 MHz after excision from patients. Normal lung tissues were also measured for comparison. Based on the data trends, the permittivity curves were fitted to logarithmic functions, while the conductivity curves were fitted to exponential functions. The intercepts and slopes of these permittivity and conductivity functions were then used to distinguish lung tumors from normal lung tissues. These parameters were also used to assess the correlation between dielectric properties and PET parameters. Results: and PET parameters. Conclusions: F] FDG PET/CT, were associated with the permittivity of tumor tissues but not the conductivity. Deeper study could be carried out to explore the mechanism for this correlation.

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