A two-dimensional resistance temperature detector (RTD) array sensor for the measurement of temperature distribution inside a tissue-mimicking material was proposed to validate focused ultrasound (FUS) devices. The fully two-dimensional $10\times10$ RTD array sensor with 1 mm inter-RTD distance was fabricated on the $2.5~ \boldsymbol {\mu } \text{m}$ thick film and placed inside the tissue-mimicking material. The measurement uncertainty for the RTD array was 0.18 K. The temperature distribution inside the phantom caused by a FUS transducer was measured and compared depending on the input power and focal plane. A tissue-mimicking phantom with an implanted RTD array can be applied to validate the performance and safety of both high- and low-intensity focused ultrasound (HIFU and LIFU) devices.

中文翻译：

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聚焦超声测温：组织模拟材料中的二维电阻温度探测器阵列

提出了一种用于测量组织模拟材料内部温度分布的二维电阻温度检测器 (RTD) 阵列传感器，以验证聚焦超声 (FUS) 设备。完全二维 $10\times10$ RTD 阵列传感器的 RTD 间距为 1 mm $2.5~ \boldsymbol {\mu } \text{m}$ 厚膜并放置在组织模拟材料内。RTD 阵列的测量不确定度为 0.18 K。根据输入功率和焦平面测量和比较由 FUS 换能器引起的体模内部的温度分布。具有植入 RTD 阵列的组织模拟体模可用于验证高强度和低强度聚焦超声（HIFU 和 LIFU）设备的性能和安全性。