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On the reproducibility of the average gray-level for noninvasive temperature estimation in the hyperthermia range

机译：高温范围内非侵入温度估计平均灰度水平的再现性

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The thermal treatment of deep-sited tissues requires temperature feedback by minimally invasive or even by completely noninvasive methods. Ultrasound has been pointed as a viable technology for noninvasive temperature assessment. More precisely, parameters from B-Mode images were pointed to vary monotonically with temperature and able to estimate temperature with appropriate resolution. In this paper, a bovine muscle sample is subjected to several heating and cooling periods in order to analyze how the average gray-level from B-Mode images is reproducible with temperature. This is an important aspect concerning the real-time application on a clinical setting. Results point that for formaldehyde fixed tissue the average gray-level was reproducible with temperature. In non-fixed (unstable) media reproducibility was achieved by considering relative (temperature and average gray-level) changes to the starting of a particular heating/cooling phase.
机译：深针织组织的热处理需要通过微创甚至通过完全非侵入方法来通过微创甚至是温度反馈。 已经指出超声波作为非侵入性温度评估的可行技术。 更确切地说，指向来自B模式图像的参数以温度单调地变化，并且能够以适当的分辨率估计温度。 在本文中，对牛肌样品进行多个加热和冷却时段，以分析来自B模式图像的平均灰度水平与温度可再现。 这是关于临床环境上的实时应用的一个重要方面。 结果表明，对于甲醛固定组织，平均灰度水平可与温度再现。 在非固定（不稳定）介质再现性中，通过考虑相对（温度和平均灰度）变为特定加热/冷却阶段的开始来实现。

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