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Non-Invasive Measurement of the Temperature Rise in Tissue Surrounding a Kidney Stone Subjected to Ultrasonic Propulsion

机译:肾结石围绕超声推进的肾脏围绕组织温度升高的非侵入性测量

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Transcutaneous focused ultrasound (US) is used to propel kidney stones using acoustic radiation force. It is important to estimate the level of heating generated at the stone/tissue interface for safety assessment. An in-vitro experiment is conducted to measure the temperature rise in a tissue-mimicking phantom with an embedded artificial stone and subjected to a focused beam from an imaging US array. A novel optical-imaging-based thermometry method is described using an optically clear tissue phantom. Measurements are compared to the output from a fine wire thermocouple placed on the stone surface. The optical method has good sensitivity, and it does not suffer from artificial viscous heating typically observed with invasive probes and thermocouples.
机译:经皮聚焦超声(US)用于使用声学辐射力推动肾结石。重要的是要估算在石材/组织界面处产生的加热水平进行安全评估。进行体外实验以测量与嵌入式人造石的组织模仿体模具中的温度升高,并从成像美国阵列进行聚焦光束。使用光学透明的组织幻像描述了一种新的基于光学成像的热度方法。将测量与放置在石材表面上的细线热电偶的输出进行比较。光学方法具有良好的灵敏度,并且通常用侵入性探针和热电偶观察人工粘性加热。

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