Gamma camera scans showing posterior lung images of 4 adult patients with cystic fibrosis following inhalation of an aerosol containing the radioisotope.

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Presentation transcript:

Gamma camera scans showing posterior lung images of 4 adult patients with cystic fibrosis following inhalation of an aerosol containing the radioisotope technetium-99m. Gamma camera scans showing posterior lung images of 4 adult patients with cystic fibrosis following inhalation of an aerosol containing the radioisotope technetium-99m. Distribution of the aerosolized radioisotope varies significantly with the degree of airway obstruction, as measured by FEV1. A: FEV1 = 25% of predicted. B: FEV1 = 45% of predicted. C: FEV1 = 55% of predicted. D: FEV1 = 60% of predicted. From Reference 4. Beth L Laube Respir Care 2015;60:806-824 (c) 2012 by Daedalus Enterprises, Inc.