Yuta A, Sakakura Y, Yamada H, Ukai K, Saida S, Masuda S, Majima Y
Department of Otorhinolaryngology, Mie University School of Medicine, Tsu.
Nihon Jibiinkoka Gakkai Kaiho. 1990 Nov;93(11):1832-7. doi: 10.3950/jibiinkoka.93.1832.
The opacity of the maxillary sinuses on X-ray film in Waters' view in patients with nasal allergy was evaluated by a microdensitometer. The patients with nasal allergy were diagnosed with the positive results of the following; 1) eosinophilia in nasal secretion, 2) nasal provocation test, 3) intradermal skin test or radioallergosorbent test (RAST). The ratio of density of the maxillary sinuses and orbits was determined by a microdensitometer, and the ratio of the average degree of the opacity of the maxillary sinus to that of the ipsilateral orbit was designated as the M/O ratio. The normal range of the M/O ratio was set over the mean value -2 standard deviations in the normal group. The results are followings. 1) The abnormal shadows in the maxillary sinuses were found out to be 36.9% in patients with nasal allergy. 2) Patients under 15 years old had significantly higher incidence of abnormal shadows, especially in the bilateral sinuses compared with patients over 15 years old. 3) Polyps in the maxillary sinus were recognized in 5.0% of all the sinuses. 4) There were no significant differences for the incidence of abnormal shadow among the patients with nasal allergy caused by different antigens.
通过显微密度计评估鼻过敏患者华氏位X线片上的上颌窦透明度。鼻过敏患者通过以下检查结果呈阳性来诊断：1）鼻分泌物嗜酸性粒细胞增多；2）鼻激发试验；3）皮内皮肤试验或放射变应原吸附试验（RAST）。用显微密度计测定上颌窦与眼眶的密度比，将上颌窦平均混浊度与同侧眼眶平均混浊度之比定义为M/O比。M/O比的正常范围设定为正常组平均值减2个标准差以上。结果如下：1）鼻过敏患者上颌窦异常阴影检出率为36.9%。2）15岁以下患者异常阴影发生率明显高于15岁以上患者，尤其是双侧鼻窦。3）所有鼻窦中5.0%发现上颌窦息肉。4）不同抗原引起的鼻过敏患者异常阴影发生率无显著差异。
