Variation in Equation Coefficients in the Gravimetric Method to Determine Brain Water Content
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概要
- 論文の詳細を見る
The gravimetric method to determine the tissue water content is widely used for studying brain edema because the tissue water content can be calculated from only the density of the wet tissue using a gradient column. This method has been used in only a few studies of cerebellar water content. We estimated the water content of the cerebellar cortex by the gravimetric method and compared the results with those measured by the conventional drying-weighing method, and found a significant difference. We therefore propose modified coefficients for the equation for the water content of the cerebellar cortex as follows: % tissue water content = 456.13(l/wet tissue density) - 356.13 This equation and the drying-weighing method were used to investigate normal and edematous cerebellar cortices after compression with an epidural balloon. The modified equation provided results consistent with the drying-weighing method. Differences in the total experimental system including the breed and pre-experimental condition of the cats may be factors in variations in measured values. We recommend that investigators establish equation coefficients valid for individual experimental systems.
- 日本脳神経外科学会の論文
- 1995-02-15
著者
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MATSUOKA Yoshimi
Department of Neurosurgery,Osaka City University Medical School
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HAKUBA Akira
Department of Neurosurgery, Osaka City University Medical School
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Hakuba Akira
Department Of Neurosurgery Osaka City University Medical School
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Kan Masanori
Department Of Neurosurgery Osaka City University Medical School
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HAYAZAKI Koji
Department of Neurosurgery, Osaka City University Medical School
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Hayazaki Koji
Department Of Neurosurgery Osaka City University Medical School:(present Address)department Of Neuro
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Matsuoka Yoshimi
Department Of Neruosurgery Osaka City University Medical School
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MATSUOKA Yoshimi
Department of Neurosurgery, Osaka City University Medical School
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