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This work explores the use of amorphous silicon temperature sensors for temperature monitoring in Microwave Thermal Ablation (MTA). MTA is a minimally invasive technique that uses the heat generated by microwave electromagnetic fields (EMF) to destroy pathological tissues. MTA is performed by inserting an antenna in the target tissue; then, the antenna is allowed to radiate an EMF which is absorbed by the tissue, thus raising the tissues’ temperature. To optimize MTA and to avoid damage to the surrounding healthy tissues, it is fundamental to monitor the temperature during the treatment. Here we investigate a solution based on hydrogenated amorphous silicon (a-Si:H) temperature sensors, that, thanks to their small dimensions and low deposition temperature, are suitable to be integrated directly on the MTA antennas. This work is focused on a study of the sensors’ stability in a dissipative environment similar to human tissues; the scope is to analyze the feasibility of temperature monitoring in MTA through a-SI:H diodes.

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Study of Amorphous Silicon Temperature Sensors in Saline Solution for Microwave Thermal Ablation

  • 会议论文

  • 发表日期：

    2025年

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  • F. Cappelli,
  • M. Baldini,
  • G. Petrucci,
  • A. Nascetti,
  • G. de Cesare,
  • N. Lovecchio,
  • M. Cavagnaro,
  • D. Caputo

摘要

This work explores the use of amorphous silicon temperature sensors for temperature monitoring in Microwave Thermal Ablation (MTA). MTA is a minimally invasive technique that uses the heat generated by microwave electromagnetic fields (EMF) to destroy pathological tissues. MTA is performed by inserting an antenna in the target tissue; then, the antenna is allowed to radiate an EMF which is absorbed by the tissue, thus raising the tissues’ temperature. To optimize MTA and to avoid damage to the surrounding healthy tissues, it is fundamental to monitor the temperature during the treatment. Here we investigate a solution based on hydrogenated amorphous silicon (a-Si:H) temperature sensors, that, thanks to their small dimensions and low deposition temperature, are suitable to be integrated directly on the MTA antennas. This work is focused on a study of the sensors’ stability in a dissipative environment similar to human tissues; the scope is to analyze the feasibility of temperature monitoring in MTA through a-SI:H diodes.