Ultrasonic thickness evaluation of seminiferous tubule by fuzzy inference
Ultrasonic thickness evaluation of seminiferous tubule by fuzzy inference
复制标题
模糊推理超声评价曲细精管厚度
DOI：
10.1109/fuzz-ieee.2012.6251348
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Y. Hata
中科院分区：
文献类型：
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作者：
Y. Takashima;T. Ishikawa;Kei Kuramoto;Syoji Kobashi;Y. Hata
本文介绍了一种曲细精管超声探头的评价。在这个系统中，我们评估了无精子症患者的曲细精管直径。我们采用5.0MHz的超声单探头。在实验中，我们使用大小尼龙线作为健康和不健康的曲细精管。我们用大小线共24条线制作了球形体模。我们通过超声波探头采集波形，并从应用带通滤波器的数据中计算振幅值。然后，我们计算振幅值的累积相对频率。模糊if-then规则的累积相对频率的大小线。我们使用模糊MIN-MAX重心法来评估所有线条中的大线条比率。结果平均绝对误差为5.98%。相关系数为0.98。因此，所提出的方法成功地评估了大线的比率。
This paper describes a seminiferous tubules evaluation using an ultrasonic probe. In this system, we evaluate a diameter of seminiferous tubules for azoospermia patients. We employ a 5.0MHz ultrasonic single probe. In the experiment, we employ large and small nylon lines as the healthy and unhealthy seminiferous tubules. We made ball shape phantom from small and large lines in total 24. We acquire the waveforms by the ultrasonic probe and calculate amplitude values from the data that band pass filters applied. We then calculate cumulative relative frequency of amplitude values. Fuzzy if-then rules are made for the cumulative relative frequency of large and small lines. We evaluate a rate of large lines among all lines by using the fuzzy MIN-MAX center-of-gravity method. In the result, the mean absolute error was 5.98%. The correlation coefficient was 0.98. The proposed method thus successfully evaluated the rate of the large lines.