[在偶然扰动的情况下对实验数据的解释:膀胱的特征]。

F Ronchi, G Ranucci, L Innocenti, L Olmi
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引用次数: 0

摘要

有些检验受到一类特殊的“不可约”效应的影响,这些效应不满足统计学的中心极限定理,即使它们没有显示出系统的特征或趋势。当涉及“体内”的生理实验时,这些效应尤其明显。在这种情况下,由于缺乏具体的方法来减少这些影响,因此需要特殊情况来最大限度地减少信息的损失。实验中所包含的数据以及积累的无用信息。最近的工作建议广泛使用由可用变量及其各自的数学相关性组合而成的几个指数。按照这种方法得到的信息具有“工作假设”的特点,因此需要许多有利的确认来评估其可靠性。便于分析大量的关系,以强调和谐效应和不和谐效应。为了初步证明该方法的可靠性,我们对前列腺和非前列腺受试者的CMG曲线进行了分析。曲线的最终斜率(督促点)t = dP/dVr已被用作膀胱“弹性”的指标;将其与填充物体积、肌肉体积及其比值进行比较,即与膀胱形状的几何指数进行比较。相关性表明,指数t能在一定程度上显著表征膀胱在其生理状态下或存在部分尿偏转阻塞时的力学行为。(摘要删节250字)
本文章由计算机程序翻译,如有差异,请以英文原文为准。
[Interpretation of experimental data in the presence of accidental perturbations: characterization of the bladder].

Some tests are subject to the influence of a special kind of "irreducible" effects which do not satisfy the Central Limit Theorem of statistics, even though they show no systematic character or tendency. These effects especially present when physiological experiments are concerned "in vivo". In such the lack of specific methods to reduce these effects brings about the necessity of special case in minimizing the loss of information. Contained in the experimental data as well as the accumulation of useless information. Recent work has suggested the extensive use of several indexes derived from combination of available variables and their respective mathematic correlation. The information obtained by following this methodology has the character of "working hypothesis" so it needs many favorable confirmation to assess its reliability. It is convenient to analyze a large number of relations in order to emphasize the concordant effects and discord the others. In order to obtain some preliminary indication of the reliability of this procedure we have analyzed some CMG curves in prostatic and non-prostatic subject. The final slope of the curves (urge point) t = dP/dVr has been adapted as an index of the "elasticity" of the bladder; it was compared with the filling volume, the muscular volume and their ratio, i.e. with a geometric index of the bladder shape. The correlation show that the index t can, to some extent significantly represent the mechanical behaviour of the bladder in its physiological condition or when there is a partial obstruction of urine deflection.(ABSTRACT TRUNCATED AT 250 WORDS)

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