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Gamma scintigraphy of an example of a breath-powered nasal spray. (Figure included with permission from Djupesland et al., 2013.) Gamma camera images 2 minutes after delivery using a traditional liquid spray (A) and powder with OptiNose Breath-Powered Device (B) shown with a logrithmic hot iron intensity scale. Initial gamma images from one of the subjects are esuperimposed on a lateral MR image. The red dotted lines indicate the segmentation used for regional quantification.
