Wu J, Cubberley F, Gormley G, Szabo T L
Department of Physics, University of Vermont, Burlington 05405, USA.
Ultrasound Med Biol. 1995;21(4):561-8. doi: 10.1016/0301-5629(94)00151-3.
Temperature rises generated by diagnostic ultrasound from a modified commercial system (Sonos 1000 Hewlett Packard) in a transcranial phantom that consists of human temporal bone and tissue-mimicking material are measured. Significant temperature rises were found at the external and internal temporal bone surfaces. The experimental results are compared with cranial thermal indices (TIC) developed by the American Institute of Ultrasound in Medicine and the National Electrical Manufacturers Association for various modes. For all the modes compared, TIC underestimated temperature rise at the external temporal bone surface. The differences between the data and temperature rises predicted by TIC can be attributed to transducer surface heating.
对一种改良的商用系统（惠普Sonos 1000）在由人类颞骨和仿组织材料组成的经颅体模中产生的温度升高进行了测量。在颞骨内外表面均发现了显著的温度升高。将实验结果与美国超声医学学会和美国国家电器制造商协会针对各种模式制定的颅骨热指数（TIC）进行了比较。在所有比较的模式中，TIC均低估了颞骨外表面的温度升高。数据与TIC预测的温度升高之间的差异可归因于换能器表面发热。
