多频血流灌注测量技术的评价

1996 IEEE Ultrasonics Symposium. Proceedings Pub Date : 1996-11-03 DOI:10.1109/ULTSYM.1996.584209

T. Jansson, H. Persson, K. Lindstrom

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引用次数: 4

摘要

连续多普勒测量在灌注模体上进行，传感器位置固定，发射频率范围为9.9至10.1 MHz。理论模型解释了接收多普勒光谱中观测到的大功率变化主要不是样品体积内灵敏度幅度的变化，而是散斑效应的结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Evaluation of a multi frequency technique for blood perfusion measurements

CW Doppler measurements were performed on a perfusion phantom with a fixed transducer position and transmit frequencies ranging from 9.9 to 10.1 MHz. The observed large power variations in the received Doppler spectra were explained by a theoretical model to be not primarily variations in sensitivity amplitude within the sample volume, but rather the result of a speckle effect.

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来源期刊

1996 IEEE Ultrasonics Symposium. Proceedings

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