ラジオエアロソル吸入スキャンによる鼻腔通気と肺換気の関係

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タイトル別名
  • The Relationship between Nasal Air Flow and Pulmonary Ventilation: on the Basis of Nose and Lung Scanning
  • ラジオ エアロソル キュウニュウ スキャン ニ ヨル ビクウ ツウキ ト ハイ カンキ ノ カンケイ

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The relationship between nasal air flow and pulmonary ventilation was investigated by the methed of nose and lung scanning. Radioaerosol of 198Au-colloid was made through ultrasonic nebulizer and inhaled from nose during 1 to 3 minutes.<BR>The nose scintigrams of the cases with intact nasal passage showed high concentration of radioactivity at the both nasal orifices, but no marked evidence of radioactivity in the paranasal sinuses. In the cases with unilateral nasal obstruction, decreased radioactivity was observed clearly at the nasal orifice on the obstructed side.<BR>Inhalation lung scans, not only in the case with intact nasal passage, but also in the case with unilateral nasal obstruction, revealed an uniform deposition of radioactivity throughout the both lung fields. When radioaerosol was inhaled lying on one side, in the case with intact nasal passage as well as in the case with unilateral nasal obstruction, larger amount of radioactivity was deposited in the inferior lung than in the superior, that is, the ventilation of the inferior lung was greater regardless of unilateral nasal obstruction.

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