Scheepe J R, Jünemann K P, Bührle C P, Schmidt P, Wipfler G, Berle B, Alken P
Department of Urology, Klinikum Mannheim, University of Heidelberg, Germany.
J Urol. 1996 Jun;155(6):2074-9.
To apply digital signal acquisition and analyzing techniques to the collection and interpretation of electromyographic data of the cavernous body.
Electromyographic recordings were performed in the cavernous bodies of anesthetized, spontaneously breathing dogs under resting conditions and after intracavernous pharmacostimulation with norepinephrine, angiotensin II, phentolamine/papaverine, diethylether and T61.
Resting corpus cavernosum activity was ill-coordinated and provided little information. Signal energy was confined largely to the range below 20 Hz. Pharmacostimulation with norepinephrine or angiotensin increased frequency and amplitude of the potential transients and decreased the random components. Administration of a combination of phentolamine and papaverine made the signals very regular and increased periodicity. Blockade of electrical membrane events with diethylether removed all signal components except for electrical and biological noise.
Our findings indicate that electromyograms from the corpus cavernosum can be recorded even under adverse conditions. Signal properties, however, are such that the application of computer-aided data processing and analysis to the evaluation of these myograms is imperative.
应用数字信号采集与分析技术来收集和解读海绵体的肌电图数据。
在麻醉、自主呼吸的犬的海绵体内进行肌电图记录，记录在静息状态下以及用去甲肾上腺素、血管紧张素II、酚妥拉明/罂粟碱、乙醚和T61进行海绵体内药物刺激后进行。
静息状态下海绵体的活动不协调，提供的信息很少。信号能量主要局限于20赫兹以下的范围。用去甲肾上腺素或血管紧张素进行药物刺激会增加电位瞬变的频率和幅度，并减少随机成分。给予酚妥拉明和罂粟碱的组合会使信号非常规则并增加周期性。用乙醚阻断电膜事件会去除除电噪声和生物噪声外的所有信号成分。
我们的研究结果表明，即使在不利条件下也可以记录海绵体的肌电图。然而，信号特性使得必须应用计算机辅助数据处理和分析来评估这些肌电图。
