ポリトームによる正常乳突洞口•乳突洞の計測

概要

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Measurements of the size of the aditus ad antrum and the antrum were performed in 45 normal adults (90 ears) on Polytome X-ray films. Vestibular plane in the sagittal projection was suited for the measurement of the aditus and antral plane in the sagittal and lateral projection were of the antrum. The antral plane is defined as that antrum appears in maximal size. The results were as follows: the vertical length of the aditus ad antrum 7.2mm, the horizontal length of the aditus ad antrum 6.7mm, the vertical length of the antrum 13.9mm (sagittal projection), 15.0mm (lateral projection), the horizontal length of the antrum 11.5mm (sagittal projection), 12.6mm, (lateral projection).There were no statistically significant differences between the right and left ears. The male tended to have larger values of the measurements than the female, showing statistically significant differences in the vertical length of the aditus ad antrum and the horizontal length of the antrum (lateral projection).There was no correlation between the values of the aditus ad antrum and the antrum. There was a correlation between the vertical and the horizontal length of the aditus ad antrum.
社団法人日本耳鼻咽喉科学会の論文