慢性上顎洞炎のレ線的機能診断に於ける造影劑及び頭位の意義

1）慢性副鼻洞炎の診断法の一つとしてのレ線像は従来より相当有意義とされ，之に就ての詳しい報告も少くないが当数室で既に発表した樣に造影剤を使用しない普通一般の影像では実際の所見と一致しない事が往々に存する，即ち

　イ）146名，256例に普通レ線像と造影剤使用影像との比較検討を行つた所，

TAKAHASHI AND KANEKO maintain that, after trying out Molyodol solutions in various strengths and the position of the head in different ways, the most satisfactory means by which roentgenography of maxillary sinus is obtained wouli be one that employed 3cc. of 15 per cent Molyodol instilled in the sinus thr-ough a puncture needle that had been previously introduced into that cavity and in which the head is held in such a position, with the pati-ent in prone, as to allow vertical exposure to roentgen rays. Proetz's method establishes gradual filling of the sinus with radio-opaque agent and exposure is made in such a way as to show the line of fluid-level of opacity. But, in order that a picture worthy of diagnostic evaluation may be obtained the present method that allows roentgeen-rays to traverse perpen-dicularly to the fluid-level appears to be much more preferable.